WO2020159086A1 - 폴리아미드 수지 필름 및 이를 이용한 수지 적층체 - Google Patents
폴리아미드 수지 필름 및 이를 이용한 수지 적층체 Download PDFInfo
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- WO2020159086A1 WO2020159086A1 PCT/KR2019/018450 KR2019018450W WO2020159086A1 WO 2020159086 A1 WO2020159086 A1 WO 2020159086A1 KR 2019018450 W KR2019018450 W KR 2019018450W WO 2020159086 A1 WO2020159086 A1 WO 2020159086A1
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- polyamide resin
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- 0 CC(c(cc1)ccc1C(N*N*)=O)=O Chemical compound CC(c(cc1)ccc1C(N*N*)=O)=O 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
- C08K5/3475—Five-membered rings condensed with carbocyclic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
Definitions
- the present invention relates to a polyamide resin film and a resin laminate using the polyamide resin film capable of securing mechanical properties of a suitable level or higher and excellent transparency while improving light resistance to long-term ultraviolet irradiation.
- Aromatic polyimide resins are mostly polymers having an amorphous structure, and exhibit excellent heat resistance, chemical resistance, electrical properties, and dimensional stability due to a rigid chain structure. These polyimide resins are widely used as electrical/electronic materials.
- the polyimide resin has a dark brown color due to the formation of the charge transfer complex (CTC) of Pi-electrons present in the imide chain, and thus it is difficult to secure transparency.
- CTC charge transfer complex
- the surface is easily scratched It has a very weak scratch resistance.
- the amide repeating unit derived from thaloyl chloride is difficult to polymerize ideally and alternatively without forming a block.
- the polymerization reaction proceeds in a state in which the monomer used for synthesizing the polyamide resin is dissolved in a solvent, the molecular weight of the polyamide resin finally synthesized is secured to a sufficient level due to deterioration by moisture or hybridization with the solvent. It is difficult.
- the present invention relates to a polyamide resin film capable of securing mechanical properties above a suitable level and excellent transparency while improving light resistance to long-term ultraviolet irradiation.
- the present invention is to provide a resin laminate using the polyamide resin film.
- Eab n ⁇ (L n -L n-1 ) 2 + (a n -a n-1 ) 2 + (b n -b n-1 ) 2 ⁇ 1/2
- L n-1 is the lightness index of the polyamide resin film of ultraviolet irradiation n-1 day
- a n-1 and b n-1 are color coordinates of the polyamide resin film of ultraviolet irradiation n-1 day
- a n and b n are color coordinates of the polyamide resin film on the first day of ultraviolet irradiation.
- a substrate including the polyamide resin film; And a hard coating layer formed on at least one surface of the substrate.
- substitution means that other functional groups are bonded in place of the hydrogen atom in the compound, and the position to be substituted is not limited to a position where the hydrogen atom is substituted, that is, a position where the substituent is substitutable, and is substituted when two or more are substituted. , 2 or more substituents may be the same or different from each other.
- substituted or unsubstituted in this specification is deuterium; Halogen group; Cyano group; Nitro group; Hydroxy group; Carbonyl group; Ester groups; Imide group; Amide group; Primary amino group; Carboxy group; Sulfonic acid group; Sulfonamide groups; Phosphine oxide group; Alkoxy groups; Aryloxy group; Alkyl thioxy group; Arylthioxy group; Alkyl sulfoxy group; Aryl sulfoxyl group; Silyl group; Boron group; Alkyl groups; Haloalkyl group; Cycloalkyl group; Alkenyl group; Aryl group; Aralkyl group; An alkenyl group; Alkyl aryl groups; Alkoxysilylalkyl groups; Arylphosphine group; Or substituted or unsubstituted with one or more substituents selected from the group consisting of heterocyclic groups containing one or more of N, O and S atoms, or substituted
- a substituent having two or more substituents may be a biphenyl group. That is, the biphenyl group may be an aryl group or may be interpreted as a substituent to which two phenyl groups are connected.
- a haloalkyl group can be used as the substituent, and examples of the haloalkyl group include a trifluoromethyl group.
- the alkyl group is a monovalent functional group derived from alkane, and may be a straight chain or a branched chain, and the carbon number of the straight chain alkyl group is not particularly limited, but is preferably 1 to 20. Further, the number of carbon atoms in the branched chain alkyl group is 3 to 20.
- alkyl group examples include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n -Pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 4-methyl-2-pentyl, 3,3-dimethylbutyl, 2-ethylbutyl, heptyl , n-heptyl, 1-methylhexyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl, n-non
- the aryl group is a monovalent functional group derived from arenes, and is not particularly limited, but is preferably 6 to 20 carbon atoms, and may be a monocyclic aryl group or a polycyclic aryl group.
- the aryl group may be a phenyl group, a biphenyl group, a terphenyl group, etc., as a monocyclic aryl group, but is not limited thereto.
- the polycyclic aryl group may be a naphthyl group, anthracenyl group, phenanthryl group, pyrenyl group, perylenyl group, chrysenyl group, fluorenyl group, and the like, but is not limited thereto.
- the aryl group may be substituted or unsubstituted.
- the arylene group is a divalent functional group derived from arene, and the description of the aryl group described above may be applied except that they are divalent functional groups.
- it may be a phenylene group, biphenylene group, terphenylene group, naphthalene group, fluorenyl group, pyrenyl group, phenanthrenyl group, perylene group, tetrasenyl group, anthracenyl group, and the like.
- the arylene group may be substituted or unsubstituted.
- the heteroaryl group includes one or more non-carbon atoms, heteroatoms, and specifically, the heteroatoms may include one or more atoms selected from the group consisting of O, N, Se, and S.
- the number of carbon atoms is not particularly limited, and preferably 4 to 20 carbon atoms, and the heteroaryl group may be monocyclic or polycyclic.
- heterocyclic group examples include thiophene group, furanyl group, pyrrol group, imidazolyl group, thiazolyl group, oxazolyl group, oxadiazolyl group, pyridyl group, bipyridyl group, pyrimidyl group, triazinyl group, tria Jolyl group, acridil group, pyridazinyl group, pyrazinyl group, quinolinyl group, quinazolinyl group, quinoxalinyl group, phthalazinyl group, pyridopyrimidyl group, pyridopyrazinyl group, pyrazino pyrazinyl group , Isoquinolinyl group, indolyl group, carbazolyl group, benzoxazolyl group, benzimidazolyl group, benzothiazolyl group, benzocarbazolyl group, benzothiophene group, di
- the heteroarylene group has 2 to 20 carbon atoms, or 2 to 10 carbon atoms, or 6 to 20 carbon atoms.
- the heteroaryl group containing O, N or S is an arylene group, and the description of the above-described heteroaryl group can be applied, except that it is a divalent functional group.
- the heteroarylene group may be substituted or unsubstituted.
- halogen examples include fluorine, chlorine, bromine or iodine.
- the polyamide resin film can maintain colorless, transparent and high-strength film properties even when exposed to an environment in which strong ultraviolet rays are irradiated for a long time, thereby expanding the application field of the polyamide resin film through a small cost and simple process. It is excellent in economics and efficiency.
- Eab 1 color difference change rate
- Eab 1 ⁇ (L 1 -L 0 ) 2 + (a 1 -a 0 ) 2 + (b 1 -b 0 ) 2 ⁇ 1/2
- L 0 is the lightness index of the polyamide resin film on day 0 of ultraviolet irradiation
- a 0 and b 0 are color coordinates of the polyamide resin film on day 0 of ultraviolet irradiation
- L 1 is ultraviolet irradiation.
- the brightness index of the polyamide resin film on the first day, and a 1 and b 1 are color coordinates of the polyamide resin film on the first day of ultraviolet irradiation.
- the UV irradiation day 0 polyamide resin film refers to a polyamide resin film that has not undergone UV irradiation, and the UV irradiation day 1 polyamide resin film undergoes UV irradiation for 1 day. it means.
- the brightness index L 1 of the first day of ultraviolet irradiation of the polyamide resin film may be 93 or more, or 95 or more, or 95 or more and 95.75 or less, or 95.5 or more and 95.75 or less, or 95.7 or more and 95.75 or less.
- the color coordinate a 1 of the ultraviolet irradiation day 1 of the polyamide resin film is -1.5 or more, -1.5 or more -0.1 or less, or -1.0 or more -0.5 or less, or -0.8 or more -0.5 or less, or -0.76 or more- 0.65 or less.
- b 1 may be 4 or less, or 1 or more and 4 or less, or 2 or more and 3 or less, or 2.01 or more and 2.15 or less.
- the brightness index (L) and the color coordinates (a, b) refer to the values of the coordinate axes representing the respective colors.
- L has a value of 0 to 100, and closer to 0 indicates black, and closer to 100 indicates white.
- a has a positive (+) and negative (-) value based on 0, and a positive (+) means red, and a negative (-) means green.
- b has a positive (+) and negative (-) value based on 0, and a positive (+) means yellow, and a negative (-) means blue.
- the polyamide resin film of the embodiment may have a specimen having a size of 5 cm * 5 cm.
- the polyamide resin film of the embodiment may have a specimen having a size of 5 cm * 5 cm.
- Eab 5 ⁇ (L 5 -L 4 ) 2 + (a 5 -a 4 ) 2 + (b 5 -b 4 ) 2 ⁇ 1/2
- L 4 is the lightness index of the polyamide resin film on day 4 of ultraviolet irradiation
- a 4 and b 4 are color coordinates of the polyamide resin film on day 4 of ultraviolet irradiation
- L 5 is ultraviolet light.
- a 5 and b 5 are color coordinates of the polyamide resin film on day 5 of ultraviolet irradiation.
- Eab 10 ⁇ (L 10 -L 9 ) 2 + (a 10 -a 9 ) 2 + (b 10 -b 9 ) 2 ⁇ 1/2
- L 9 is the lightness index of the polyamide resin film on day 9 of ultraviolet irradiation
- a 9 and b 9 are color coordinates of the polyamide resin film on day 9 of ultraviolet irradiation
- L 10 is ultraviolet light.
- a 10 and b 10 are color coordinates of the polyamide resin film on the 10th day of ultraviolet irradiation.
- the color difference change rate (Eab n ) value of the UV irradiation n-day according to Equation 1 shows a tendency to decrease as n increases, and n is 1 to 5, which is relatively low in the early stage of UV irradiation. It can be seen that discoloration and deterioration proceed predominantly.
- the polyamide resin film of the above embodiment can realize excellent light resistance since the value of the rate of color difference change does not increase rapidly even at n of 1 to 5, which is the first part of ultraviolet irradiation.
- the yellow index measured according to the measurement method of ASTM E313 is 7 or less, or 1 or more and 7 or less, or 1 or more and 6 or less, or 1 or more and 5 or less, or 1 or more It may be 4 or less, or 3 or more and 4 or less. Accordingly, even when the polyamide resin film of the embodiment is irradiated with strong ultraviolet rays, as the internal molecular structure deformation of the polyamide resin contained in the polyamide resin film is suppressed by ultraviolet rays, discoloration or deterioration of the polyamide resin film is prevented. By minimizing, it can realize excellent light resistance and stable optical properties.
- the yellow index measured according to the measurement method of ASTM E313 may be 9 or less, or 1 or more and 9 or less, or 1 or more and 7 or less, or 1 or more and 6 or less. Accordingly, the polyamide resin film of the embodiment is discolored or deteriorated in the polyamide resin film as the internal molecular structure deformation of the polyamide resin contained in the polyamide resin film is suppressed by ultraviolet light even during prolonged ultraviolet irradiation. By minimizing, it is possible to realize excellent light resistance and stable optical properties.
- the polyamide resin film of one embodiment is irradiated with ultraviolet rays on the polyamide resin film for 10 days
- the yellow index measured according to the measurement method of ASTM E313 the polyamide resin film is irradiated with ultraviolet light for 1 day
- the difference in yellowness index measured according to the measurement method of ASTM E313 may be 2.5 or less, or 1 or more and 2.5 or less, or 1.5 or more and 2.5 or less, or 1.6 or more and 2.4 or less, or 1.6 or more and 2.3 or less.
- the yellow index measured according to the measurement method of ASTM E313, and after irradiating the polyamide resin film with ultraviolet light for 1 day the yellow color measured according to the measurement method of ASTM E313
- the difference in index is after irradiating the polyamide resin film with ultraviolet light for 10 days, after irradiating the polyamide resin film with ultraviolet light for 1 day at YI 10 , which is a yellow index measured according to the method of ASTM E313, ASTM E313 It means (YI 10 -YI 1 ) which is the value obtained by subtracting the yellow index YI 1 measured according to the measurement method.
- the polyamide resin film has a retardation (Rth) in the thickness direction of -8000 nm or more -3000 nm or less, or -6000 nm or more -3000 nm or less, or -6000 nm or more for a wavelength of 550 nm in an unstretched state -4000 nm or less, Accordingly, the yellow index and the haze value are lowered, and mechanical strength may be improved according to the orientation of the polymer inside the film, and water absorption may be lowered.
- Rth retardation
- the polyamide resin film has a water absorption of 0.5% or more and 7.0% or less, or 1.0% or more and 7.0% or less, or 2.0% or more and 7.0% or less, or 2.46% or more and 7.0% or less, or 0.5 according to Equation 2 above.
- the retardation (Rth) in the thickness direction can be confirmed through a commonly known measuring method and measuring device.
- the apparatus for measuring retardation (Rth) in the thickness direction includes AXOMETRICS' trade names "AxoScan, Prism Coupler, and the like. And, as a measurement condition of the retardation (Rth) in the thickness direction, after inputting a refractive index (550 nm) value to the measuring device with respect to the polyamide resin film, under the conditions of temperature: 25°C and humidity: 40%.
- Retardation in the thickness direction of the polyamide resin film was measured using light having a wavelength of 550 nm, and based on the obtained retardation measurement value in the thickness direction (measured by automatic measurement (automatic calculation) of the measuring device), It can be calculated
- the size of the polyamide film of the measurement sample may be larger than the light metering portion (diameter: about 1 cm) of the stage of the measuring device, but is not particularly limited, but may be a size of 76 mm, 52 mm horizontal, and 50 ⁇ m thick. .
- the value of the "refractive index (550 nm) of the polyamide resin film" used to measure the retardation (Rth) in the thickness direction is the same polyamide as the polyamide resin film forming the film to be measured for retardation.
- the unstretched film is used as a measurement sample (also, when the film to be measured is an unstretched film, the film can be used as a measurement sample)
- a refractive index measuring device (trade name Prism Coupler manufactured by AXOMETRICS) is used as a measuring device, a light source of 550 nm is used, and in a temperature condition of 23° C., the in-plane direction of the sample to be measured is perpendicular to the thickness direction. Direction) can be obtained by measuring the refractive index of light at 550 nm.
- the intrinsic refractive index (550 nm) of the polyamide resin film is measured using the unstretched film, and the obtained measurement value is used for the measurement of the retardation (Rth) in the thickness direction described above.
- the size of the polyamide resin film of the measurement sample may be any size that can be used for the refractive index measuring device, and is not particularly limited, and may be a size of 50 ⁇ m in a square (1 cm) with a 1 cm square. .
- a polyamide resin film which has a rigid internal structure, typically has a relatively high haze or yellowness or may exhibit low light transmittance.
- the polyamide resin film of the embodiment exhibits a retardation (Rth) in the above-mentioned thickness direction, and has a crystalline rigid internal structure, but also has a moisture absorption rate of 3.6% or less with water penetration, etc. This is prevented and thus can have a low haze value and a high transmittance.
- the polyamide resin film may have a lower yellow index and haze value while having higher mechanical strength.
- the thickness of the polyamide resin film is not particularly limited, but can be freely adjusted, for example, within a range of 0.01 ⁇ m to 1000 ⁇ m.
- the thickness of the polyamide resin film increases or decreases by a specific value, physical properties measured in the polyamide resin film may also change by a certain value.
- haze measured by ASTM D1003 is 3.0% or less, or 1.5% or less, or 1.00% or less, or 0.85% or less, or 0.10% to 3.0%, or 0.10% to 1.5%, or 0.10% to 1.00%, or 0.40% to 1.00%, or 0.40% to 0.90%, or 0.40% to 0.80%.
- the haze measured by ASTM D1003 of the polyamide resin film increases to more than 3.0%, the opacity increases, making it difficult to secure a sufficient level of transparency.
- the polyamide resin film the yellow index value (yellow index, YI) measured in accordance with ASTM E313 for a specimen having a thickness of 50 ⁇ 2 ⁇ m, 4.0 or less, or 3.1 or less, or 0.5 to 4.0, Or 0.5 to 3.1, or 2.5 to 3.1.
- YI yellow index
- the polyamide resin film the cutting strength measured for the specimen having a thickness of 50 ⁇ 2 ⁇ m (angle of 135 ° at a speed of 175 rpm, a radius of curvature of 0.8 mm and a reciprocating fracture at a load of 250 g Number of times) Value is 4000 Cycle or more, or 7000 Cycle or more, or 9000 Cycle or more, or 4000 Cycle to 20000 Cycle, or 7000 Cycle to 20000 Cycle, or 9000 Cycle to 20000 Cycle, or 10000 Cycle or more, 15000 Cycle or less, or 10000 Cycle It may be more than 14000 cycles or less.
- the polyamide resin film a pencil hardness (Pencil Hardness) value measured in accordance with ASTM D3363 for a specimen having a thickness of 50 ⁇ 2 ⁇ m 1H or more, or 3H or more, or 1 H to 4H, or 3 H to 4H.
- Polyamide resin containing the aromatic amide repeating unit derived from; And ultraviolet stabilizer may include.
- the polyamide resin film may include a polyamide resin composition containing the polyamide resin and an ultraviolet stabilizer or a cured product thereof, and the cured product refers to a material obtained through a curing process of the polyamide resin composition. it means.
- the polyamide resin film may be prepared by a conventional method such as a dry method or a wet method using the polyamide resin composition.
- the polyamide resin film may be obtained by coating a solution containing the polyamide resin and an ultraviolet stabilizer on an arbitrary support to form a film, and evaporating a solvent from the film to dry the film. Accordingly, stretching and heat treatment of the polyamide resin film may be further performed.
- the polyamide resin film When a polyamide resin film is prepared using the polyamide resin composition, excellent optical properties and mechanical properties can be realized, and flexibility is also provided, so that it can be used as a material for various molded products.
- the polyamide resin film may be applied to a display substrate, a display protective film, a touch panel, a window cover of a foldable device, and the like.
- the polyamide resin used in the polyamide resin film may contain an aromatic amide repeating unit derived from a combination of an aromatic diacyl compound and an aromatic diamine compound.
- the aromatic amide repeating unit includes a first aromatic amide repeating unit derived from a combination of a 1,4-aromatic diacyl compound and an aromatic diamine compound; A second aromatic amide repeating unit derived from a combination of a 1,2-aromatic diacyl compound and an aromatic diamine compound; And a third aromatic amide repeating unit derived from a combination of a 1,3-aromatic diacyl compound and an aromatic diamine compound.
- the aromatic amide repeating unit is a first aromatic amide repeating unit derived from a combination of a 1,4-aromatic diacyl compound and an aromatic diamine compound, a combination of a 1,2-aromatic diacyl compound and an aromatic diamine compound 2 aromatic amide repeat units derived from, 1,3-aromatic diacyl compounds and aromatic diamine compounds, 3 aromatic amide repeat units derived from a combination of one, or a mixture of two or more thereof have.
- the aromatic amide repeating unit is a second aromatic amide repeating unit derived from a combination of the 1,2-aromatic diacyl compound and an aromatic diamine compound; And 1,4-aromatic diacyl compound and aromatic diamine compound together with at least one repeating unit selected from the group consisting of a 3, aromatic amine repeating unit derived from a combination of 1,3-aromatic diacyl compound and aromatic diamine compound. And a first aromatic amide repeating unit derived from the binder.
- a second aromatic amide repeating unit comprising a first aromatic amide repeating unit or derived from a combination of the 1,2-aromatic diacyl compound and an aromatic diamine compound, a combination of a 1,3-aromatic diacyl compound and an aromatic diamine compound
- 1,4-aromatic diacyl compound examples include terephthaloyl chloride or terephthalic acid.
- aromatic diamine monomer 2,2'-bis (trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl)-4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone , 4,4'-(9-fluorenylidene)dianiline (4,4'-(9-fluorenylidene)dianiline), bis(4-(4-aminophenoxy)phenyl) sulfone (bis(4-( 4-aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlorobenzidine (2,2',5,5'-tetrachlorobenzidine), 2,7-
- the 1,4-aromatic diacyl compound comprises terephthaloyl chloride, or terephthalic acid
- the aromatic diamine compound is 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine It may include.
- 1,2-aromatic diacyl compound examples include phthaloyl chloride or phthalic acid.
- specific examples of the 1,3-aromatic diacyl compound include isophthaloyl chloride or isophthalic acid.
- aromatic diamine monomer 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine), 2, 2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone, 4 ,4'-(9-fluorenylidene)dianiline(4,4'-(9-fluorenylidene)dianiline), bis(4-(4-aminophenoxy)phenyl) sulfone (bis(4-(4- aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlor
- the 1,2-aromatic diacyl compound comprises phthaloyl chloride, or phthalic acid
- the 1,3-aromatic diacyl compound comprises isophthaloyl chloride or isophthalic acid
- the aromatic diamine compound 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine.
- the polyamide resin may include a repeating unit represented by the following Chemical Formula 1, or a first polyamide segment including a block made of the same.
- Ar 1 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms.
- Ar 1 is an arylene group having 6 to 20 carbon atoms substituted with one or more substituents selected from the group consisting of an alkyl group, a haloalkyl group, and an amino group, more preferably 2,2'-bis(trifluoro Methyl)-4,4'-biphenylene group.
- Ar 1 may be a divalent organic functional group derived from an aromatic diamine monomer, and a specific example of the aromatic diamine monomer is 2,2'-bis(trifluoromethyl)-4,4 '-Biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine (2,2'-dimethyl-4,4 '- diaminobenzidine), 4,4'-diaminodiphenyl sulfone, 4,4'-(9-fluorenylidene)dianiline (4,4'-(9-fluorenylidene) dianiline), bis(4-(4-aminophenoxy)phenyl) bis(4-(4-aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlorobenzidine (2,2 ',5,5
- the aromatic diamine monomer is 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine, TFDB ) Or 2,2'-dimethyl-4,4'-diaminobenzidine.
- the first polyamide segment may include a repeating unit represented by Chemical Formula 1 or a block composed of a repeating unit represented by Chemical Formula 1.
- a specific example of the repeating unit represented by Chemical Formula 1 may include a repeating unit represented by Chemical Formula 1-1.
- the repeating unit represented by Formula 1 is an amide repeating unit derived from a combination of a 1,4-aromatic diacyl compound and an aromatic diamine compound, specifically an amide formed by amidation reaction of terephthaloyl chloride or terephthalic acid with an aromatic diamine monomer It is a repeating unit, and due to the linear molecular structure, chain packing and alignment in the polymer can be kept constant, and the surface hardness and mechanical properties of the polyamide film can be improved.
- 1,4-aromatic diacyl compound examples include terephthaloyl chloride or terephthalic acid.
- aromatic diamine monomer 2,2'-bis (trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl)-4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone , 4,4'-(9-fluorenylidene)dianiline (4,4'-(9-fluorenylidene)dianiline), bis(4-(4-aminophenoxy)phenyl) sulfone (bis(4-( 4-aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlorobenzidine (2,2',5,5'-tetrachlorobenzidine), 2,7-
- the 1,4-aromatic diacyl compound comprises terephthaloyl chloride, or terephthalic acid
- the aromatic diamine compound is 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine It may include.
- the number average molecular weight of the first polyamide segment is 100 g/mol or more and 5000 g/mol or less, or 100 g/mol or more and 3000 g/mol or less, or 100 g/mol or more and 2500 g/mol or less, or 100 g/ mol or more and 2450 g/mol or less.
- the number average molecular weight of the first polyamide segment increases to more than 5000 g/mol, the crystallinity of the polyamide resin may increase as the chain of the first polyamide segment becomes too long, and accordingly It can be difficult to ensure transparency by having a haze value.
- the number average molecular weight of the first polyamide segment is not limited to an example of a measurement method, but can be confirmed, for example, through SAXS (Small-angle X-ray scattering) analysis.
- the first polyamide segment may be represented by Formula 5 below.
- Ar 1 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and a is an integer of 1 to 5.
- Chemical Formula 5 when a is 1, Chemical Formula 5 may be a repeating unit represented by Chemical Formula 1.
- Chemical Formula 5 when a is 2 to 5, Chemical Formula 5 may be a block composed of repeating units represented by Chemical Formula 1.
- the description of Ar 1 includes the contents described in Formula 1 above.
- the proportion of repeating units represented by Formula 1 is 40 mol% to 95 mol%, or 50 mol% to 95 mol%, or 60 mol% to 95 mol% , Or 70 mol% to 95 mol%, or 50 mol% to 90 mol%, or 50 mol% to 85 mol%, or 60 mol% to 85 mol%, or 70 mol% to 85 mol%, or 80 mol% To 85 mol%, or from 82 mol% to 85 mol%.
- the polyamide resin in which the repeating unit represented by Chemical Formula 1 is contained in the above-described content can secure a sufficient level of molecular weight to secure excellent mechanical properties.
- the polyamide resin may include a repeating unit represented by Chemical Formula 1 or a first polyamide segment including a block composed of the second polyamide segment including a repeating unit represented by Chemical Formula 2 or a block composed of the same. It may further include.
- the repeating unit represented by Formula 2 is an amide repeating unit derived from a combination of a 1,3-aromatic diacyl compound and an aromatic diamine compound, or derived from a combination of a 1,2-aromatic diacyl compound and an aromatic diamine compound. Repeating units, or mixtures thereof.
- Ar 2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms.
- Ar 2 is an arylene group having 6 to 20 carbon atoms substituted with one or more substituents selected from the group consisting of an alkyl group, a haloalkyl group, and an amino group, and more preferably 2,2'-bis(trifluoro Methyl)-4,4'-biphenylene group.
- Ar 2 may be a divalent organic functional group derived from an aromatic diamine monomer, and a specific example of the aromatic diamine monomer is 2,2'-bis(trifluoromethyl)-4,4 '-Biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine (2,2'-dimethyl-4,4 '- diaminobenzidine), 4,4'-diaminodiphenyl sulfone, 4,4'-(9-fluorenylidene)dianiline (4,4'-(9-fluorenylidene dianiline), bis(4-(4-aminophenoxy)phenyl) bis(4-(4-aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlorobenzidine (2,2 ',5,5'-tetrachlor
- the aromatic diamine monomer is 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine, TFDB ) Or 2,2'-dimethyl-4,4'-diaminobenzidine.
- the second polyamide segment may include a repeating unit represented by Chemical Formula 2 or a block composed of a repeating unit represented by Chemical Formula 2.
- the repeating unit represented by Chemical Formula 2 includes: a repeating unit represented by Chemical Formula 2-1; Or a repeating unit represented by the following formula 2-2; It may include one of the repeating unit.
- Ar 2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms.
- the detailed description of Ar 2 includes the above-described contents in Chemical Formula 2.
- the repeating unit represented by Formula 2-1 is an amide repeating unit derived from a combination of a 1,3-aromatic diacyl compound and an aromatic diamine compound, specifically a repeat formed by amidation reaction of isophthaloyl chloride and an aromatic diamine monomer
- the unit, and the repeating unit represented by Formula 2-2 is an amide repeating unit derived from a combination of a 1,2-aromatic diacyl compound and an aromatic diamine compound, specifically, an amidation reaction of a phthaloyl chloride and an aromatic diamine monomer It is a repeating unit formed by.
- 1,2-aromatic diacyl compound examples include phthaloyl chloride or phthalic acid.
- specific examples of the 1,3-aromatic diacyl compound include isophthaloyl chloride or isophthalic acid.
- aromatic diamine monomer 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine), 2, 2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone, 4 ,4'-(9-fluorenylidene)dianiline(4,4'-(9-fluorenylidene)dianiline), bis(4-(4-aminophenoxy)phenyl) sulfone (bis(4-(4- aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlor
- the 1,2-aromatic diacyl compound comprises phthaloyl chloride, or phthalic acid
- the 1,3-aromatic diacyl compound comprises isophthaloyl chloride or isophthalic acid
- the aromatic diamine compound 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine.
- repeating unit represented by Chemical Formula 2-1 include a repeating unit represented by Chemical Formula 2-4.
- repeating unit represented by Chemical Formula 2-2 include a repeating unit represented by Chemical Formula 2-5.
- the second polyamide segment may be represented by Formula 6 below.
- Ar 2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and b is an integer of 1 to 3, or 1 to 2 .
- Chemical Formula 6 when b is 1, Chemical Formula 6 may be a repeating unit represented by Chemical Formula 2.
- Formula 6 when b is 2 to 3, Formula 6 may be a block composed of repeating units represented by Formula 2.
- the repeating unit represented by Chemical Formula 2 is a repeating unit formed by the amidation reaction of isophthaloyl chloride, isophthalic acid or phthaloyl chloride, phthalic acid with an aromatic diamine monomer, and due to the curved molecular structure, chain packing and It has the property of interfering with the alignment, and increases the amorphous region of the polyamide resin, thereby improving the optical properties and the fracture strength of the polyamide film.
- the molecular weight of the polyamide resin can be increased.
- the proportion of repeating units represented by Formula 2 is 5 mol% to 60 mol%, or 5 mol% to 50 mol%, or 5 mol% to 40 mol% , Or 5 mol% to 30 mol%, or 10 mol% to 50 mol%, or 15 mol% to 50 mol%, or 15 mol% to 40 mol%, or 15 mol% to 30 mol%, or 15 mol% To 20 mol%, or 15 mol% to 18 mol%.
- the polyamide resin in which the repeating unit represented by Chemical Formula 2 is contained in the above-described content can inhibit the length growth of the chain consisting of only the specific repeating unit represented by Chemical Formula 1, thereby lowering the crystallinity of the resin. Accordingly, it is possible to secure excellent transparency by having a low haze value.
- the content of the repeating units represented by Formula 1 is 60 mol% to 95 mol%, or 70 mol% to 95 mol%, or 50 mol% To 90 mol%, or 50 mol% to 85 mol%, or 60 mol% to 85 mol%, or 70 mol% to 85 mol%, or 80 mol% to 85 mol%, or 82 mol% to 85 mol%
- the content of the repeating unit represented by Formula 2 is 5 mol% to 40 mol%, or 5 mol% to 30 mol%, or 10 mol% to 50 mol%, or 15 mol% to 50 mol%, or 15 mol% To 40 mol%, or 15 mol% to 30 mol%, or 15 mol% to 20 mol%, or 15 mol% to 18 mol%.
- the polyamide resin increases the molar content of the repeating unit represented by Formula 1, and the polyamide film according to chain packing and alignment in the polymer by the linear molecular structure of the repeating unit represented by Formula 1 Crystallization of the resin by inhibiting the length growth of the chain consisting of only the specific repeating unit represented by Formula 1 despite the relatively small molar content of the repeating unit represented by Formula 2 while maximizing the effect of improving the surface hardness and mechanical properties
- the properties can be lowered, and accordingly, a low haze value can be obtained to ensure excellent transparency.
- first polyamide segment and the second polyamide segment may form a main chain including a cross-repeating unit represented by Chemical Formula 3 below.
- A is the first polyamide segment
- B is the second polyamide segment
- the main chain of the polyamide resin is a first polyamide segment and a 1,3-aromatic segment containing an amide repeating unit derived from a combination of a 1,4-aromatic diacyl compound and an aromatic diamine compound, as shown in Chemical Formula 3 above.
- the second polyamide segment including the amide repeat unit derived from the combination of a diacyl compound and an aromatic diamine compound, or an amide repeat unit derived from a combination of a 1,2-aromatic diacyl compound and an aromatic diamine compound alternates with each other ( alternatively) a polymerization chain can be achieved. That is, the second polyamide segment is located between the first polyamide segments, and may serve to inhibit length growth of the first polyamide segments.
- the haze value of the polyamide resin can be remarkably lowered while the crystal properties are reduced, thereby realizing excellent transparency.
- the main chain of the polyamide resin is a first polyamide segment derived from terephthaloyl chloride, or terephthalic acid, and a second derived from isophthaloyl chloride, isophthalic acid or phthaloyl chloride, phthalic acid, as in Chemical Formula 3 above.
- the alternating polyamide segments (alternatively) and forming a polymerization chain appear to be due to the formation of a melt-kneaded composite in the polyamide resin production method of the present invention described later.
- cross-repeating unit represented by Chemical Formula 3 may be a repeating unit represented by Chemical Formula 4 below.
- Ar 1 and Ar 2 are each independently a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and a1 and a2 are the same as each other, or Different, each independently an integer of 1 to 10, or 1 to 5, b1 and b2 are the same or different from each other, and each independently an integer of 1 to 5, or 1 to 3.
- the polyamide resin may include a repeating unit represented by Formula 1, or a first polyamide segment including a block composed of the same; And a second polyamide segment comprising a repeating unit represented by Formula 2 or a block composed of the first polyamide segment and a second polyamide segment comprising cross-repeating units represented by Formula 3 above.
- Main chains can be formed.
- the main chain of the polyamide resin is a crystalline polymer block (hereinafter referred to as a first polyamide segment) derived from terephthaloyl chloride or terephthalic acid and isophthaloyl chloride, isophthalic acid or phthaloyl chloride, derived from phthalic acid
- Amorphous polymer blocks can alternately form a polymerization chain. That is, the second polyamide segment is located between the first polyamide segments, and may serve to inhibit length growth of the first polyamide segments.
- the first polyamide segment is included in the individual crystals of the polyamide resin to express crystal properties
- the second polyamide segment is included in the amorphous polymer chain between the individual crystals to express amorphous properties. do.
- the polyamide resin can significantly lower the haze value while reducing the crystal properties of the first polyamide segment, thereby realizing excellent transparency.
- the polyamide resin crystallizes the first polyamide segment.
- the haze value increases rapidly and transparency may become poor.
- the polyamide resin can have a sufficient level of weight average molecular weight, thereby achieving a sufficient level of mechanical properties.
- the weight average molecular weight of the polyamide resin is 330000 g/mol or more, 420000 g/mol or more, or 500000 g/mol or more, 330000 g/mol to 1000000 g/mol, or 420000 g/mol to 1000000 g/mol, or 500000 g/mol to 1000000 g/mol, or 420000 g/mol to 800000 g/mol, or 420000 g/mol to 600000 g/mol, or 450000 g/mol to 550,000 g/mol.
- the weight average molecular weight of the polyamide resin is measured to be high, which seems to be due to the formation of a melt-kneaded composite in the polyamide resin manufacturing method of another embodiment of the present invention described below.
- the weight average molecular weight of the polyamide resin is reduced to less than 330000 g/mol, mechanical properties such as flexibility and pencil hardness are reduced.
- the polyamide resin may have a molecular weight distribution of 3.0 or less, or 2.9 or less, or 2.8 or less, or 1.5 to 3.0, or 1.5 to 2.9, or 1.6 to 2.8, or 1.8 to 2.8. Through this narrow range of molecular weight distribution, the polyamide resin may have improved mechanical properties such as bending properties and hardness properties. When the molecular weight distribution of the polyamide resin is excessively wider than 3.0, it is difficult to improve the mechanical properties described above to a sufficient level.
- the haze measured by ASTM D1003 of the polyamide resin is 3.0% or less, or 1.5% or less, or 1.00% or less, or 0.85% or less, or 0.10% to 3.0%, or 0.10% to 1.5%, or 0.10% to 1.00%, or 0.50% to 1.00%, or 0.80% to 1.00%, or 0.81% to 0.97%.
- the haze measured by ASTM D1003 of the polyamide resin increases to more than 3.0%, the opacity increases, making it difficult to secure a sufficient level of transparency.
- the polyamide resin has a weight average molecular weight of 330000 g/mol or more, or 420000 g/mol or more, or 500000 g/mol or more, or 330000 g/mol to 1000000 g/mol, or 420000 g/mol to Satisfies 1000000 g/mol, or 500000 g/mol to 1000000 g/mol, or 420000 g/mol to 800000 g/mol, or 420000 g/mol to 600000 g/mol, or 450000 g/mol to 550,000 g/mol
- the haze measured by ASTM D1003 is .0% or less, or 1.5% or less, 1.00% or less, or 0.85% or less, or 0.10% to 3.0%, or 0.10% to 1.5%, or 0.10% to 1.00% , Or 0.50% to 1.00%, or 0.80% to 1.00%, or 0.81% to 0.97%.
- the relative viscosity of the polyamide resin is 45000 cps or more, or 60000 cps or more, or 45000 cps to 500000 cps, or 60000 cps to 500000 cps, or 70000 cps to 400000 cps, or 80000 cps To 300000 cps, or 100000 cps to 200000 cps, or 110000 cps to 174000 cps.
- Examples of the method for producing the polyamide resin include the steps of melt-kneading the compound represented by the following formula (7) and the compound represented by the following formula (8), and solidifying the melt-kneaded product to form a complex; And reacting the complex with an aromatic diamine monomer.
- a method for producing a polyamide resin may be used.
- X is a halogen or a hydroxyl group.
- the compound represented by the formula (7) and the formula (8) A complex of monomers uniformly mixed through melting of the compound represented by can be prepared, and upon reacting it with an aromatic diamine monomer, an amide repeat unit derived from the compound represented by Chemical Formula 7, or a block composed of the same ,
- the amide repeating unit derived from the compound represented by the formula (8), or a block consisting of it can be alternately (alternatively) polymerized through experiments and completed the invention.
- the polyamide resin of the above embodiment can be obtained.
- each of the compound represented by Chemical Formula 7 and the compound represented by Chemical Formula 8 exhibits different aspects in solubility and reactivity due to chemical structural differences.
- the compound represented by Chemical Formula 7 and the compound represented by Chemical Formula 8 are not simply physically mixed, but through the formation of a complex by melt kneading at a temperature higher than the respective melting points, Each monomer was induced to react relatively uniformly with the aromatic diamine monomer.
- the compound represented by the formula (7) and the compound represented by the formula (8) are dissolved in a solvent and reacted with an aromatic diamine monomer in a solution state. Due to the hybridization there was a limit to decrease the molecular weight of the polyamide resin to be finally synthesized, derived from the compound represented by the formula (7) due to the difference in solubility of the compound represented by the formula (7) and the compound represented by the formula (8) As the amide repeating unit was formed predominantly dominant, a long block was formed to increase the crystallinity of the polyamide resin, and it was difficult to secure transparency.
- the temperature obtained by melting and kneading the composite obtained by melt-kneading the compound represented by the formula (7) and the compound represented by the formula (8) is lower than each melting point (10°C to 30°C, or 0°C). ⁇ 30 °C, or by reacting with aromatic diamine monomer dissolved in an organic solvent in the form of a solid powder through cooling at 10 °C to 30 °C), it was confirmed that the molecular weight of the final synthesized polyamide resin is improved, through this It was confirmed through experiments that excellent mechanical properties were secured.
- the method for producing the polyamide resin may include the step of melt-kneading the compound represented by Chemical Formula 7 and the compound represented by Chemical Formula 8, and solidifying the melt-kneaded material to form a complex.
- X is halogen or a hydroxyl group.
- X is chlorine.
- Specific examples of the compound represented by Chemical Formula 7 include terephthaloyl chloride or terephthalic acid.
- the compound represented by Chemical Formula 7 may form a repeating unit represented by Chemical Formula 1 by amidation reaction of an aromatic diamine monomer, and due to the linear molecular structure, chain packing and alignment in the polymer are kept constant. Can improve the surface hardness and mechanical properties of the polyamide film.
- X is halogen or a hydroxyl group.
- X is chlorine.
- Specific examples of the compound represented by Chemical Formula 8 include phthaloyl chloride, phthalic acid, isophthaloyl chloride, or isophthalic acid.
- the compound represented by Chemical Formula 8 may form a repeating unit represented by Chemical Formula 2 by amidation of an aromatic diamine monomer, and due to a curved molecular structure, it prevents chain packing and alignment in the polymer. It has a personality and can increase the optical properties and the fracture strength of the polyamide film by increasing the amorphous region in the polyamide resin.
- the repeating unit represented by Formula 2 derived from the compound represented by Formula 8 is included in the polyamide resin together with the repeating unit represented by Formula 1, the molecular weight of the polyamide resin can be increased.
- the melt-kneading is the compound represented by the formula (7) and the formula It means that the compound represented by 8 is mixed at a temperature above the melting point.
- each monomer is an aromatic diamine monomer And to react relatively uniformly.
- an amide repeating unit derived from the compound represented by Chemical Formula 7 is formed predominantly, forming a long block. Crystallinity of the polyamide resin increases, overcomes the limitation that it is difficult to ensure transparency, and as in the above embodiment, the first polyamide segment and the second polyamide segment alternately (alternatively) to the formula (3) It becomes possible to form a main chain including the displayed cross-repeating unit.
- the compound represented by Formula 8 is 5 parts by weight to 60 parts by weight, or 5 parts by weight to 50 parts by weight, or 5 parts by weight to 25 parts by weight, or 10 parts by weight to 30 parts by weight, or 15 parts by weight to 25 parts by weight.
- the compound represented by the formula (7) when the compound represented by the formula (8) is mixed in an amount less than 5 parts by weight, it becomes opaque and a technical problem of increasing hazeness occurs.
- the compound represented by Chemical Formula 8 is excessively mixed in excess of 60 parts by weight with respect to 100 parts by weight of the displayed compound, a technical problem may occur in which physical properties (hardness, tensile strength, etc.) decrease.
- the coagulation means a physical change to solidify by cooling the melt-kneaded material in a molten state to a temperature below a melting point, and the complex formed thereby is in a solid state.
- the composite may be a solid powder obtained through an additional grinding process.
- the step of melt-kneading the compound represented by the formula (7) and the compound represented by the formula (8), and solidifying the melt-kneaded material to form a complex the compound represented by the formula (7) and represented by the formula (8) Mixing the compound at a temperature of 50° C. or higher; And cooling the resultant product of the mixing step.
- the terephthaloyl chloride has a melting point of 81.3 °C to 83 °C
- the isophthaloyl chloride (Isophthaloyl chloride) has a melting point of 43 °C to 44 °C
- the phthaloyl chloride (Phthaloyl chloride) ) May have a melting point of 6 °C to 12 °C.
- the formula (7) Melting and kneading may proceed because the temperature is higher than the melting point of both the compound represented by and the compound represented by Chemical Formula 8.
- the compound represented by the formula (7) by leaving the result of the melt-kneading step at 5°C or lower, or at 10°C to 5°C, or 5°C to 5°C And it is a temperature condition lower than the melting point of all of the compounds represented by the formula (8) to obtain a more uniform solid powder through cooling.
- the step of crushing the product of the cooling step may be further included.
- a complex of solid content may be prepared in powder form, and the powder obtained after the pulverization step may have an average particle diameter of 1 mm to 10 mm.
- the pulverizer used for pulverizing to such a particle size is, specifically, a pin mill, a hammer mill, a screw mill, a roll mill, a disc mill, or a jog. It is possible to use a mill (jog mill) or a sieve (sieve), jaw crusher, etc., but is not limited to the above-described example.
- the molten mixture of the compound represented by the formula (7) and the compound represented by the formula (8) is cooled at a temperature lower than the melting point, it reacts with the solid diamine monomer in the form of a solid powder, specifically, a solid powder.
- the molecular weight of the polyamide resin finally synthesized is improved by minimizing the deterioration of the compound represented by 7 and the compound represented by the formula (8) due to moisture or hybridization with a solvent, excellent mechanical properties of the polyamide resin are secured Can be.
- the manufacturing method of the polyamide resin is melt-kneaded the compound represented by the formula (7) and the compound represented by the formula (8), and solidifying the melt-kneaded product to form a complex, the complex is aromatic diamine monomer It may include the step of reacting with.
- the reaction in the step of reacting the complex with an aromatic diamine monomer may be performed under an inert gas atmosphere at a temperature condition of minus 25 °C to 25 °C, or a temperature condition of minus 25 °C to 0 °C.
- the aromatic diamine monomer is specifically, for example, 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine) , 2,2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone ), 4,4'-(9-fluorenylidene)dianiline (4,4'-(9-fluorenylidene)dianiline), bis(4-(4-aminophenoxy)phenyl) sulfone (bis(4- (4-aminophenoxy)phenyl)sulfone), 2,2',5,5'-tetrachlorobenzidine (2,2',5,5'-tetrachlorobenzidine), 2,7-diaminofluorene (2,7- diaminofluorene), 4,4-diamin
- the aromatic diamine monomer is 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine, TFDB), 2,2'-dimethyl-4,4'-diaminobenzidine, m-xylylenediamine, or p-xyleneylene Diamine (p-xylylenediamine) can be used.
- the step of reacting the complex with an aromatic diamine monomer comprises: dissolving the aromatic diamine monomer in an organic solvent to prepare a diamine solution; And adding the composite powder to the diamine solution.
- the aromatic diamine monomer contained in the diamine solution may exist dissolved in an organic solvent.
- the solvent are not particularly limited, for example, N-methylformamide, N,N-dimethylformamide, N,N-diethylformamide, N,N-dimethylacetamide, N,N-di Ethyl acetamide, N,N-dimethylpropionamide, 3-methoxy-N,N-dimethylpropionamide, dimethylsulfoxide, acetone, N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone , General purpose organic solvents such as tetrahydrofuran, chloroform, gamma-butyrolactone, ethyl lactate, methyl3-methoxypropionate, methyl isobutyl ketone, toluene, xylene, methanol, ethanol can
- the complex powder reacts with the aromatic diamine monomer dissolved in the diamine solution. Accordingly, by improving the molecular weight of the final synthesized polyamide resin by minimizing the deterioration by moisture of the compound represented by the formula (7) and the compound represented by the formula (8) or hybridization with the solvent, the polyamide resin Excellent mechanical properties can be secured.
- the composite powder may be prepared in the form of a powder in a solid form through the step of crushing the result of the cooling step, and the powder obtained after the crushing step has an average particle diameter of 1 mm. To 10 mm.
- the UV stabilizer is a material added for UV stability, and various commercially available materials are Tinuvin 144, Tinuvin 292, Tinuvin 327, Tinuvin 329, Tinuvin 5050, Tinuvin 5151, and LOWILITE 22, LOWILITE 26 from Miwon Corporation. , LOWILITE 55, LOWILITE 62, LOWILITE 94, etc. may be used, and the present invention is not limited thereto.
- UV stabilizer 2 only one type of triazine-based UV absorber, triazole-based UV absorber, or HALS (hindered amine light stabilizer)-based UV absorber may be used as the UV stabilizer 2 You may use more than one species together.
- the triazine-based UV absorbers include commercialized Tinuvin 360, Tinuvin 1577 (Ciba Chemicals), Cyasorb UV-1164, Cyasorb UV-2908, Cyasorb UV-3346 (Cytec), Tinuvin T1600 (BASF), LA-F70 (ADEKA), etc.
- the triazole-based UV absorbers include Tinuvin 329, Tinuvin 384, Tinuvin 1130, Cyasorb UV-2337, Cyasorb UV-5411, Everlight Chemical's Eversorb 109, and the HALS-based UV absorber is Cyasorb UV-3853 and the like can be used.
- the triazole-based UV absorber may include a compound represented by the following Chemical Formula 11.
- R 1 and R 2 are each independently hydrogen or an alkyl group having 1 to 20 carbon atoms. More preferably, in Formula 1, R 1 is 2,4,4-trimethylpentan-2-yl (2,4,4-trimethylpentan-2-yl), and R 2 is hydrogen. Tinuvin 329 from BASF. have.
- the ultraviolet stabilizer may be added in an amount of 0.1 to 20 parts by weight, or 1 to 10 parts by weight based on 100 parts by weight of the polyamide resin. This is because when the content of the UV stabilizer satisfies the above range, both the optical properties of the film and the UV blocking effect are excellent.
- the ultraviolet stabilizer When the ultraviolet stabilizer is injected in an excessively small amount compared to the polyamide resin, it is difficult to sufficiently implement ultraviolet light resistance by the ultraviolet stabilizer, and when the ultraviolet stabilizer is added in an excessive amount compared to the polyamide resin, the initial stage of the polyamide resin film As the yellow index becomes higher than the reference value, the transparency of the film may decrease.
- the substrate comprising the polyamide resin film of the one embodiment; And a hard coating layer formed on at least one surface of the substrate.
- the substrate may include the polyamide resin film of the one embodiment, and the contents of the polyamide resin film may include all of the contents described above in the one embodiment.
- a hard coating layer may be formed on at least one surface of the substrate.
- a hard coating layer may be formed on one surface or both surfaces of the substrate.
- the opposite surface of the substrate is made of a polyimide-based, polycarbonate-based, polyester-based, polyalkyl (meth)acrylate-based, polyolefin-based, and polycyclic olefin-based polymer.
- a polyamide resin film including at least one polymer selected from the group may be formed.
- the hard coating layer may have a thickness of 0.1 ⁇ m to 100 ⁇ m.
- the hard coating layer can be used without any limitation as long as it is a material known in the hard coating field, for example, the hard coating layer is a binder resin of a photocurable resin; And inorganic particles or organic particles dispersed in the binder resin.
- the photo-curable resin contained in the hard coating layer is a polymer of a photo-curable compound that can cause a polymerization reaction when light such as ultraviolet rays is irradiated, and may be common in the art.
- the photocurable compound may be a polyfunctional (meth)acrylate-based monomer or oligomer, wherein the number of (meth)acrylate-based functional groups is 2 to 10, or 2 to 8, or 2 to 7 It is advantageous in terms of securing physical properties of the hard coating layer.
- the photocurable compound may include pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol hepta ( Meth)acrylate, tripentaerythritol hepta(meth)acrylate, trilene diisocyanate, xylene diisocyanate, hexamethylene diisocyanate, trimethylolpropane tri(meth)acrylate, and trimethylolpropane polyethoxy tri(meth) ) May be one or more selected from the group consisting of acrylates.
- the inorganic particles may be, for example, metal atoms such as silica, aluminum, titanium, and zinc, or oxides and nitrides thereof, respectively, and silica particles, aluminum oxide particles, titanium oxide particles, or zinc oxide particles may be used independently. have.
- the inorganic particles may have an average radius of 100 nm or less, or 5 to 100 nm.
- the type of the organic particles is also not limited, and for example, polymer particles having an average particle diameter of 10 nm to 100 ⁇ m may be used.
- the resin laminate may be used as a substrate or cover window of a display device, and may be used as a substrate or cover window of a flexible display device with high light transmittance and low haze characteristics and high flexibility and bending durability. That is, the display device including the resin laminate or the flexible display device including the resin laminate may be implemented.
- the present invention it is possible to provide a polyamide resin film and a resin laminate using the same, which can secure mechanical properties of an appropriate level or higher and excellent transparency while improving light resistance to long-term ultraviolet irradiation.
- Example 1 shows a 13 C-NMR spectrum of the polyamide resin obtained in Example 1 (1).
- Fig. 2 shows the 13 C-NMR spectrum of the polyamide resin obtained in Example 1 (1).
- terephthaloyl chloride TPC; melting point: 83°C
- IPC isophthaloyl chloride
- acyl chloride complex was pulverized with a jaw crusher to prepare a powder having an average particle diameter of 5 mm.
- TPC Terephthaloyl chloride
- IPC isophthaloyl chloride
- the acyl chloride complex powder obtained in Preparation Example 1 was stirred while adding 8.972 g (0.0442 mol), and the amide formation reaction was performed at 0° C. for 12 hours.
- N,N-dimethylacetamide (DMAc) was added to dilute the solid content to 5% or less, precipitated with 1 L of methanol, and filtered the precipitated solid content. Thereafter, the mixture was dried in a vacuum at 100° C. for 6 hours or more to prepare a polyamide resin in solid form.
- DMAc N,N-dimethylacetamide
- the polymer solution was applied onto a polyimide base film (UPILEX-75s, UBE), and the thickness of the polymer solution was uniformly adjusted using a film applicator.
- a polyamide resin was prepared in the same manner as in Example 1 (1), except that the acyl chloride composite powder obtained in Preparation Example 2 was used instead of the acyl chloride composite powder obtained in Preparation Example 1.
- the polyamide resin obtained in (1) of Example 2 is terephthaloyl chloride (terephthaloyl chloride, TPC) and 2,2'-bis (trifluoromethyl)- 82 mol% of the first repeating unit obtained by the amide reaction of 4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine, TFDB), and isophthaloyl chloride, IPC) and 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine, TFDB) It was confirmed that 18 mol% of 2 repeat units were contained.
- a film (thickness: 50 ⁇ m) was prepared.
- a polyamide resin and a polyamide resin film were prepared in the same manner as in Example 1, except that Tinuvin 329 was not added as the UV blocking agent.
- TPC terephthaloyl chloride
- IPC isophthaloyl chloride
- TPC terephthaloyl chloride
- IPC isophthaloyl chloride
- IPC isophthaloyl chloride
- TPC terephthaloyl chloride
- 2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine in powder form (2,2'-bis(trifluoromethyl)-4,4'-biphenyldiamine, TFDB) 14.153 g( 0.0442 mol) was added, and the mixture was stirred at 0° C. for 12 hours.
- N,N-dimethylacetamide (DMAc) was added to dilute the solid content to 5% or less, precipitated with 1 L of methanol, and filtered the precipitated solid content. Thereafter, the mixture was dried in a vacuum at 100° C. for 6 hours or more to prepare a polyamide resin in solid form.
- DMAc N,N-dimethylacetamide
- the brightness index (L) and the color coordinates (a, b) refer to the values of the coordinate axes representing the respective colors.
- L has a value of 0 to 100, and closer to 0 indicates black, and closer to 100 indicates white.
- a has a positive (+) and negative (-) value based on 0, and a positive (+) means red, and a negative (-) means green.
- b has a positive (+) and negative (-) value based on 0, and a positive (+) means yellow, and a negative (-) means blue.
- the yellow index (YI), brightness index (L n ), and color coordinates (a n , b n ) were measured according to the measurement method of ASTM E313 using a Shimadzu UV-2600 UV-vis spectrometer.
- Eab n ⁇ (L n -L n-1 ) 2 + (a n -a n-1 ) 2 + (b n -b n-1 ) 2 ⁇ 1/2
- L n-1 is the lightness index of the polyamide resin film of day 1 (n is an integer from 1 to 10) irradiated with ultraviolet light,
- a n-1 and b n-1 are the color coordinates of the polyamide resin film of day 1 (n is an integer of 1 to 10) irradiated with ultraviolet light,
- L n is the lightness index of the polyamide resin film of the first day of ultraviolet irradiation (n is an integer of 1 to 10),
- a n and b n are the color coordinates of the polyamide resin film of the nth day (n is an integer of 1 to 10) irradiated with ultraviolet rays.
- the color difference change rate (Eab 1 ) measured on the first day was low as 0.52811, and the yellow index (YI1) was measured as low as 3.86, resulting in excellent light resistance.
- the color difference change rate (Eab 1 ) measured on the first day was as low as 0.83295, but the yellow index (YI1). was measured as low as 3.51 and was confirmed to have excellent light resistance.
- Retardation in the thickness direction (Rth) was prepared from a polyamide resin film prepared in each of Examples and Comparative Examples, and produced a sample having a length of 76 mm, a width of 52 mm, and a thickness of 13 ⁇ m, and as a measuring device, a trade name of AXOMETRICS was released.
- the water absorption rate was calculated according to Equation 2 below, and it is shown in Table 4 below.
- W1 is the weight measured by impregnating the polyamide resin film with ultrapure water for 24 hours
- W2 is the weight measured by drying the polyamide resin film at 150°C for 30 minutes after impregnation.
- the retardation (Rth) in the thickness direction is -5853.056 nm or more and -5264.015 or less, and the water absorption according to the general formula 1 is 2.48% or more and 2.75% or less for the wavelength of 550 nm in the unstretched state.
- the polyamide resin film of the satisfactory example is prevented from water permeation, etc., and the colorless and transparent optical properties and mechanical strength can be improved according to the orientation of the polymer inside the film.
- the polyamide resin film of the comparative example is unburnt It was confirmed that the retardation (Rth) in the thickness direction was -6883.246 nm with respect to the wavelength of 550 nm in the new state, and the water absorption according to the general formula 1 was more than 2.45%, which was confirmed to be poor compared to the example.
- Thickness The film thickness was measured using a thickness measuring device.
- Pencil hardness The pencil hardness of the polyamide resin film was measured according to the method of ASTM D3363 using a Pencil Hardness Tester. Specifically, after fixing the pencils of various hardness to the tester and scratching the polyamide resin film, when the degree of scratching on the polyamide resin film was observed with the naked eye or a microscope, more than 70% of the total number of scratches was not scratched , The value corresponding to the hardness of the pencil was evaluated by the pencil hardness of the polyamide resin film.
- the hardness of the pencil increases in the order of B grade, F grade, and H grade, and within the same grade, the hardness increases as the number increases. Within the grade, the hardness increases as the number increases.
- the polyamide resin film of the embodiment can secure excellent transparency through a low haze value of 0.45% to 0.76% at a thickness of approximately 50 ⁇ m, and a high pencil of 3H to 4H grade It was confirmed that excellent mechanical properties (scratch resistance and fracture strength) were secured through the hardness and the fracture strength broken at a reciprocating bending cycle of 10225 to 13521.
- Thickness The film thickness was measured using a thickness measuring device.
- PDI polydispersity index
- the evaluation temperature is 50 to 75°C (about 65°C)
- DMF 100wt% solvent Using, a flow rate of 1 mL/min, the sample is prepared at a concentration of 1 mg/mL, and then supplied for 25 minutes in an amount of 100 ⁇ L, the molecular weight can be obtained using an assay curve formed using a polystyrene standard.
- the polystyrene standard 7 kinds of 3940/9600/31420/113300/327300/1270000/4230000 were used.
- the fracture strength of the film obtained from the polyamide resin was evaluated using a MIT type folding endurance tester. Specifically, a specimen (1 cm*7 cm) of a film obtained from a polyamide resin was loaded into a fracture resistance tester and at an angle of 135°, a radius of curvature of 0.8 mm, and a load of 250 g at a speed of 175 rpm from the left and right sides of the specimen. The reciprocating bending cycle was measured until bending and breaking.
- Relative viscosity a solution containing a polyamide resin (solvent: dimethylacetamide (DMAc), solid content: 10 wt%) using a 25 ⁇ 0.2° C. reflux system to rotate a non-Newtonian material of ASTM D 2196 Using a Brookfield viscometer DV-2T as a viscometer test method, using a number of standard solutions having a viscosity range of 5000 cps to 200000 cps as brookfield silicone oil as a standard, spindle LV-4 (64) , 0.3 ⁇ 100RPM, the unit was used as cps (mPa.s) unit.
- Pencil Hardness The pencil hardness of the film obtained from the polyamide resin was measured according to the measurement method of ASTM D3363 using a Pencil Hardness Tester. Specifically, after fixing the pencils of various hardness to the tester and scratching the film obtained from the polyamide resin, the degree of scratching on the polyamide resin film was observed with the naked eye or a microscope, and not scratched by more than 70% of the total number of scratches When not, the value corresponding to the hardness of the pencil was evaluated by the pencil hardness of the polyamide resin film.
- the hardness of the pencil increases in the order of B grade, F grade, and H grade, and within the same grade, the hardness increases as the number increases. Within the grade, the hardness increases as the number increases.
- the polyamide resin of the embodiment prepared using the acyl chloride composite powder according to Preparation Examples 1 to 2 has a high weight average molecular weight of 463000 g/mol to 512000 g/mol, and a relative viscosity It was measured as high as 110000 cps to 174000 cps.
- the polyamide resin film obtained from the polyamide resin of Examples it was confirmed that excellent transparency can be secured through a low yellowness index of 2.68 to 2.89 and a haze value of 0.81% to 0.97% at a thickness of approximately 50 ⁇ m.
- the polyamide resins of Reference Examples 1 to 3 in which the acyl chloride complex powders according to Preparation Examples 1 to 2 were not used at all have a molecular weight of 321,000 g/mol to 412,000 g/mol, which is reduced compared to Examples.
- the viscosity was decreased from 18,000 cps to 54,000 cps compared to the examples.
- the haze value was increased from 1.61% to 24.21% than in the example, resulting in poor transparency.
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Abstract
Description
| 일수(n) | 명도지수(L n) | 색좌표(a n) | 색좌표(b n) | 황색 지수(YI n) | 색차 변화율(Eab n) |
| 0 | 95.51 | -0.53 | 1.69 | 3.08 | - |
| 1 | 95.74 | -0.65 | 2.15 | 3.86 | 0.52811 |
| 2 | 95.74 | -0.74 | 2.46 | 4.37 | 0.32027 |
| 3 | 95.78 | -0.84 | 2.73 | 4.80 | 0.29319 |
| 4 | 95.79 | -0.87 | 2.81 | 4.94 | 0.08559 |
| 5 | 95.79 | -0.90 | 2.90 | 5.08 | 0.09500 |
| 6 | 95.80 | -0.93 | 2.98 | 5.21 | 0.08602 |
| 7 | 95.80 | -0.96 | 3.06 | 5.35 | 0.08544 |
| 8 | 95.83 | -0.96 | 3.02 | 5.27 | 0.05000 |
| 9 | 95.83 | -0.99 | 3.11 | 5.41 | 0.09487 |
| 10 | 95.83 | -1.02 | 3.20 | 5.55 | 0.09487 |
| 일수(n) | 명도지수(L n) | 색좌표(a n) | 색좌표(b n) | 황색 지수(YI n) | 색차 변화율(Eab n) |
| 0 | 95.30 | -0.39 | 1.38 | 2.60 | - |
| 1 | 95.70 | -0.76 | 2.01 | 3.51 | 0.83295 |
| 2 | 95.77 | -0.45 | 2.23 | 4.16 | 0.38652 |
| 3 | 95.80 | -0.78 | 2.49 | 4.40 | 0.42379 |
| 4 | 95.93 | -0.88 | 2.87 | 5.03 | 0.41229 |
| 5 | 95.95 | -0.93 | 2.99 | 5.22 | 0.12627 |
| 6 | 95.86 | -0.76 | 2.99 | 5.35 | 0.18736 |
| 7 | 95.55 | -0.89 | 3.08 | 5.44 | 0.34459 |
| 8 | 95.87 | -0.93 | 3.15 | 5.52 | 0.33000 |
| 9 | 95.83 | -1.02 | 3.24 | 5.63 | 0.13342 |
| 10 | 95.85 | -1.11 | 3.35 | 5.75 | 0.14353 |
| 일수(n) | 명도지수(L n) | 색좌표(a n) | 색좌표(b n) | 황색 지수(YI n) | 색차 변화율(Eab n) |
| 0 | 95.06 | -0.24 | 1.47 | 2.89 | - |
| 1 | 95.77 | -1.57 | 4.22 | 7.04 | 3.13616 |
| 2 | 95.80 | -1.70 | 4.54 | 7.53 | 0.34670 |
| 3 | 95.82 | -1.82 | 4.85 | 8.02 | 0.33302 |
| 4 | 95.85 | -1.95 | 5.16 | 8.51 | 0.33749 |
| 5 | 95.79 | -2.00 | 5.40 | 9.90 | 0.25239 |
| 6 | 95.80 | -2.05 | 5.53 | 9.90 | 0.13964 |
| 7 | 95.80 | -2.10 | 5.66 | 9.91 | 0.13928 |
| 8 | 95.81 | -2.14 | 5.80 | 9.91 | 0.14595 |
| 9 | 95.81 | -2.19 | 5.94 | 9.92 | 0.14866 |
| 10 | 95.82 | -2.24 | 6.06 | 9.92 | 0.13038 |
| 구분 | 실시예1 | 실시예2 | 비교예1 |
| 두께 방향의 리타데이션(Rth, nm) | -5853.056 | -5264.015 | -6883.246 |
| 수분흡수율(%) | 2.48 | 2.75 | 2.45 |
| 구분 | 실시예1 | 실시예2 | 비교예1 |
| 두께(㎛) | 50 | 50 | 49 |
| Haze(%) | 0.76 | 0.45 | 0.97 |
| 굴곡성(Cycle) | 10225 | 13521 | 9785 |
| 연필경도 | 4H | 3H | 4H |
| 구분 | 실시예1 | 실시예2 | 참고예1 | 참고예2 | 참고예3 | 참고예4 |
| 두께(㎛) | 49 | 50 | 51 | 51 | 50 | 50 |
| Y.I. | 2.89 | 2.68 | 8.55 | 25.10 | 4.59 | 2.28 |
| T (%)@550nm | 88.50 | 88.75 | 85.63 | 75.94 | 87.57 | 88.82 |
| T (%)@388nm | 71.0 | 75.3 | 51.01 | 31.62 | 65.04 | 74.24 |
| Haze(%) | 0.97 | 0.81 | 3.43 | 24.21 | 1.61 | 0.40 |
| Mw(g/mol) | 463000 | 512000 | 412000 | 350000 | 382000 | 321000 |
| 굴곡성(Cycle) | 9785 | 12022 | 5210 | 785 | 4513 | 6351 |
| PDI | 2.71 | 1.84 | 2.05 | 2.02 | 1.98 | 2.00 |
| 점도(cps) | 174000 | 110000 | 54000 | 24000 | 28000 | 18000 |
| 연필경도 | 4H | 3H | 1H | F | 1H | 2H |
Claims (20)
- 하기 수학식1에 의한 자외선 조사 1일차(n=1)의 색차 변화율(Eab 1)값이 2.5 이하인, 폴리아미드 수지 필름:[수학식1]Eab n = {(L n-L n-1) 2 + (a n-a n-1) 2 + (b n-b n-1) 2} 1/2L n-1는 자외선 조사 n-1일차의 상기 폴리아미드 수지 필름의 명도지수이고,a n-1 및 b n-1는 자외선 조사 n-1일차의 상기 폴리아미드 수지 필름의 색좌표이고,L n는 자외선 조사 n일차의 상기 폴리아미드 수지 필름의 명도지수이고,a n 및 b n는 자외선 조사 n일차의 상기 폴리아미드 수지 필름의 색좌표이다.
- 제1항에 있어서,상기 폴리아미드 수지 필름의 자외선 조사 1일차의 명도지수 L 1는 93 이상인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 폴리아미드 수지 필름의 자외선 조사 1일차의 색좌표a 1은 -1.5 이상이고, b 1는 4 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 수학식1에 의한 자외선 조사 5일차(n=5)의 색차 변화율(Eab 5)값이 0.2 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 수학식1에 의한 자외선 조사 1일차(n=1)의 색차 변화율(Eab 1)값이 상기 수학식1에 의한 자외선 조사 10일차(n=10)의 색차 변화율(Eab 10)값의 20배 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 폴리아미드 수지 필름에 1일간 자외선을 조사한 이후, ASTM E313의 측정법에 따라 측정한 황색지수가 7 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 폴리아미드 수지 필름에 10일간 자외선을 조사한 이후, ASTM E313의 측정법에 따라 측정한 황색지수와, 상기 폴리아미드 수지 필름에 1일간 자외선을 조사한 이후, ASTM E313의 측정법에 따라 측정한 황색지수의 차이가 2.5 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 폴리아미드 수지 필름은 550nm 의 파장에 대하여 두께 방향의 리타데이션(Rth)이 -8000 ㎚ 이상 -3000 nm 이하이고, 하기 수학식 2에 따른 수분 흡수율이 0.5 % 이상 7.0 % 이하인, 폴리아미드 수지 필름:[수학식2]수분 흡수율(%) = (W1-W2) * 100 / W2상기 수학식2에서, W1은 상기 폴리아미드 수지 필름을 초순수에 24시간 함침하여 측정한 무게이며,W2은 상기 함침 이후 상기 폴리아미드 수지 필름을 150℃에서 30분 동안 건조하여 측정한 무게이다.
- 제1항에 있어서,상기 폴리아미드 수지 필름은 550nm 의 파장에 대하여 두께 방향의 리타데이션(Rth)이 -6000 ㎚ 이상 -3000 nm 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,45 ㎛ 이상 55 ㎛ 이하의 두께를 갖는 시편에 대해, ASTM D1003에 의해 측정한 헤이즈가 3.0 % 이하인, 폴리아미드 수지 필름.
- 제1항에 있어서,상기 폴리아미드 수지 필름은 방향족 디아실 화합물과 방향족 디아민 화합물의 결합물로부터 유래된 방향족 아미드 반복 단위를 함유한 폴리아미드 수지; 및 자외선 안정제;를 포함하는, 폴리아미드 수지 필름.
- 제12항에 있어서,상기 제1폴리아미드 세그먼트는 100 g/mol 이상 5000 g/mol이하의 수평균분자량을 갖는, 폴리아미드 수지 필름.
- 제14항에 있어서,상기 폴리아미드 수지에 함유된 모든 반복단위를 기준으로, 상기 화학식1로 표시되는 반복단위의 함량이 60 몰% 내지 95 몰%이고, 상기 화학식2로 표시되는 반복단위의 함량이 5 몰% 내지 40 몰%인, 폴리아미드 수지 필름.
- 제11항에 있어서,상기 자외선 안정제는 트리아진계 UV 흡수제, 트리아졸계 UV 흡수제, 및 HALS계 UV 흡수제로 이루어진 군에서 선택된 1종 이상의 화합물을 포함하는, 폴리아미드 수지 필름.
- 제1항의 폴리아미드 수지 필름을 포함한 기재; 및상기 기재의 적어도 일면에 형성되는 하드 코팅층;을 포함하는, 수지 적층체.
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| JP2020567115A JP7088499B2 (ja) | 2019-02-01 | 2019-12-26 | ポリアミド樹脂フィルムおよびそれを用いた樹脂積層体 |
| EP19913033.7A EP3789438B1 (en) | 2019-02-01 | 2019-12-26 | Polyamide resin film and resin laminate using the same |
| US16/972,389 US12466951B2 (en) | 2019-02-01 | 2019-12-26 | Polyamide resin film and resin laminate using the same |
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| KR1020190173086A KR102798814B1 (ko) | 2019-02-01 | 2019-12-23 | 폴리아미드 수지 필름 및 이를 이용한 수지 적층체 |
| KR1020190174355A KR102856403B1 (ko) | 2019-02-01 | 2019-12-24 | 폴리아미드 수지 필름 및 이를 이용한 수지 적층체 |
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|---|---|---|---|---|
| JP2022056379A (ja) * | 2020-09-29 | 2022-04-08 | エスケイシー・カンパニー・リミテッド | ポリアミド系フィルム、その製造方法、並びにこれを含むカバーウィンドウおよびディスプレイ装置 |
| CN115386223A (zh) * | 2021-05-20 | 2022-11-25 | Skc株式会社 | 聚酰胺基薄膜、制备聚酰胺基薄膜的方法、覆盖窗和包括该覆盖窗的显示装置 |
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| JP2022056379A (ja) * | 2020-09-29 | 2022-04-08 | エスケイシー・カンパニー・リミテッド | ポリアミド系フィルム、その製造方法、並びにこれを含むカバーウィンドウおよびディスプレイ装置 |
| JP7333145B2 (ja) | 2020-09-29 | 2023-08-24 | エスケーマイクロワークス 株式会社 | ポリアミド系フィルム、その製造方法、並びにこれを含むカバーウィンドウおよびディスプレイ装置 |
| JP2024167300A (ja) * | 2020-09-29 | 2024-12-03 | エスケーマイクロワークス 株式会社 | ポリアミド系フィルム、その製造方法、並びにそれを含むカバーウィンドウおよびディスプレイ装置 |
| CN115386223A (zh) * | 2021-05-20 | 2022-11-25 | Skc株式会社 | 聚酰胺基薄膜、制备聚酰胺基薄膜的方法、覆盖窗和包括该覆盖窗的显示装置 |
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