WO2019132385A1 - 열가소성 수지 조성물 및 이로부터 제조된 성형품 - Google Patents
열가소성 수지 조성물 및 이로부터 제조된 성형품 Download PDFInfo
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- WO2019132385A1 WO2019132385A1 PCT/KR2018/016158 KR2018016158W WO2019132385A1 WO 2019132385 A1 WO2019132385 A1 WO 2019132385A1 KR 2018016158 W KR2018016158 W KR 2018016158W WO 2019132385 A1 WO2019132385 A1 WO 2019132385A1
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- thermoplastic resin
- resin composition
- zinc oxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
Definitions
- the present invention relates to a thermoplastic resin composition and a molded article produced therefrom. More specifically, the present invention relates to a thermoplastic resin composition excellent in weatherability, antibacterial properties, mechanical properties, and the like and a molded article produced therefrom.
- thermoplastic resin products containing antibacterial and hygienic functions As the interest in personal health and hygiene and income levels have improved.
- thermoplastic resin products that have been subjected to antimicrobial treatment that can remove or inhibit bacteria on the surfaces of household products and electronic products are increasing, and development of functional antibacterial material (antibacterial thermoplastic resin composition) having stable and reliable is very important It is an assignment.
- antibacterial thermoplastic resin composition functional antibacterial material having stable and reliable is very important It is an assignment.
- oral hygiene products and beauty equipment due to increased interest in personal hygiene and cosmetics, and the adoption of antibacterial materials such as brushes using antibacterial hair (antibacterial fiber) is increasing.
- an antibacterial thermoplastic resin composition In order to prepare such an antibacterial thermoplastic resin composition, it is necessary to add an antibacterial agent, and the antibacterial agent can be divided into an organic antibacterial agent and an inorganic antibacterial agent.
- Organic antimicrobial agents are relatively inexpensive and have good antimicrobial activity in a small amount. However, they sometimes have human toxicity and may be effective only for certain bacteria. have. In addition, there is a disadvantage in that discoloration after processing may cause discoloration and that the antibacterial persistence is short due to the elution problem, and thus the range of the organic antibacterial agent applicable to the antibacterial thermoplastic resin composition is extremely limited.
- the inorganic antimicrobial agent is an antimicrobial agent containing a metal component such as silver (Ag) and copper (Cu) and is excellent in thermal stability and is widely used for producing an antimicrobial thermoplastic resin composition (antibacterial resin).
- a metal component such as silver (Ag) and copper (Cu)
- antimicrobial resin composition antibacterial resin
- thermoplastic resin composition which is excellent in weather resistance (discoloration resistance), antimicrobial property and antimicrobial persistence, and which is capable of realizing antifungal property and the like.
- An object of the present invention is to provide a thermoplastic resin composition excellent in weather resistance, antibacterial properties, mechanical properties, and the like.
- Another object of the present invention is to provide a molded article formed from the thermoplastic resin composition.
- thermoplastic resin composition comprises about 100 parts by weight of a thermoplastic resin containing at least one of a polyamide resin and a polyester resin; And about 1 to about 5 parts by weight of zinc oxide, wherein the zinc oxide has an average particle size (D50) measured by a particle size analyzer of about 0.8 to about 3 mu m, and a photoluminescence measurement of 370 to 390 nm (B / A) of the peak A of the region and the peak B of the region of 450 to 600 nm is about 0.01 to about 1.0.
- D50 average particle size measured by a particle size analyzer of about 0.8 to about 3 mu m
- photoluminescence measurement 370 to 390 nm (B / A) of the peak A of the region and the peak B of the region of 450 to 600 nm is about 0.01 to about 1.0.
- the polyamide resin may include an aliphatic polyamide resin, a semi-aromatic polyamide resin, or a combination thereof.
- the polyester resin may include at least one of polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polytrimethylene terephthalate and polycyclohexylene terephthalate .
- the crystallite size value of the crystallite size may be from about 1,000 to about 2,000 A:
- K is a shape factor,? Is an X-ray wavelength,? Is an FWHM value (degree) of an X-ray diffraction peak,? Is a peak position value (peak position degree).
- the zinc oxide has a size ratio (B / A) of the peak A in the region of 370 to 390 nm and the peak B in the region of 450 to 600 nm 0.1 to about 1.0.
- the zinc oxide may have an average particle size (D50) measured by a particle size analyzer of about 1 to about 5 mu m.
- the zinc oxide may have a specific surface area BET of about 10 m 2 / g or less as measured by a BET analysis equipment, using a nitrogen gas adsorption method.
- the zinc oxide may have a specific surface area BET of about 1 to about 7 m 2 / g as measured by a BET analysis equipment, using a nitrogen gas adsorption method.
- thermoplastic resin composition according to any one of the above 1 to 8, wherein the initial color (L 0 * , a 0 * , b 0 * ) is measured using a colorimeter for a 50 mm ⁇ 90 mm ⁇ 2.5 mm size injection sample
- the injection specimen was tested for 3,000 hours in accordance with ASTM D4459, and the color (L 1 * , a 1 * , b 1 * ) after the test was measured using a colorimeter,
- the change ([Delta] E) can be from about 2 to about 7:
- ⁇ L * is a difference (L 1 * -L 0 *) in the L * values before and after the test
- ⁇ a * is the difference between (a 1 * - a 0 * ) of the a * values before and after the test
- ⁇ b * Is the difference (b 1 * - b 0 * ) between the values of b * before and after the test.
- thermoplastic resin composition according to any one of the above 1 to 9, wherein the thermoplastic resin composition is inoculated with a Staphylococcus aureus strain and a Escherichia coli strain in a 5 cm x 5 cm specimen according to JIS Z 2801 antibacterial evaluation method, After time-culturing, the antimicrobial activity values calculated according to the following formula 3 may be about 2 to about 7, respectively:
- Antibacterial activity log (M1 / M2)
- M1 is the number of bacteria after 24 hours of incubation for the blank specimen
- M2 is the number of bacteria after 24 hours of incubation for the thermoplastic resin composition specimen.
- Another aspect of the invention relates to a molded article.
- the molded article is formed from the thermoplastic resin composition according to any one of 1 to 10 above.
- the molded article may be a synthetic fiber.
- the present invention has the effect of providing a thermoplastic resin composition excellent in weather resistance, antibacterial properties, mechanical properties and the like and a molded article formed therefrom.
- thermoplastic resin composition according to the present invention comprises (A) a thermoplastic resin; And (B) zinc oxide.
- thermoplastic resin (A) a thermoplastic resin
- thermoplastic resin of the present invention may comprise (A1) a polyamide resin and / or (A2) a polyester resin.
- polyamide resin As the polyamide resin according to one embodiment of the present invention, a conventional polyamide resin which can be applied to fibers can be used.
- the polyamide resin is an aliphatic polyamide resin such as polyamide 66 or polyamide 6;
- a semiaromatic polyamide resin obtained by polymerizing a diamine component containing a dicarboxylic acid component including an aromatic dicarboxylic acid such as polyamide 6T and an aliphatic diamine; Combinations thereof, and the like.
- the polyamide resin has an intrinsic viscosity (IV) measured at 35 DEG C of from about 0.88 to about 1.3 dl / g, for example, from about 0.9 to about 1.3 dl / g using a sulfuric acid solution (concentration: 98% 1.1 dl / g.
- IV intrinsic viscosity measured at 35 DEG C of from about 0.88 to about 1.3 dl / g, for example, from about 0.9 to about 1.3 dl / g using a sulfuric acid solution (concentration: 98% 1.1 dl / g.
- the thermoplastic resin composition is excellent in mechanical properties and can be suitable as synthetic fibers.
- the polyester resin may contain, as the dicarboxylic acid component, terephthalic acid (TPA), isophthalic acid (IPA), 1,2-naphthalene dicarboxylic acid, 1,4-naphthalene dicar Naphthalene dicarboxylic acid, 1,7-naphthalene dicarboxylic acid, 1,8-naphthalene dicarboxylic acid, 2,3-naphthalene dicarboxylic acid, Aromatic dicarboxylic acids such as 2,6-naphthalene dicarboxylic acid, 2,7-naphthalene dicarboxylic acid and the like, dimethyl terephthalate (DMT), dimethyl isophthalate, dimethyl- Naphthalate, dimethyl-1,7-naphthalate, dimethyl-1,8-naphthalate, dimethyl-2,3-naphthalate, Aromatic dicarboxylate
- TPA terephthalic acid
- IPA isophthalic acid
- the polyester resin may include at least one of polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), and polytrimethylene terephthalate (PTT).
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- PEN polyethylene naphthalate
- PTT polytrimethylene terephthalate
- the polyester resin of the present invention may have an intrinsic viscosity of from about 1.18 to about 1.22 dl / g as measured at 35 DEG C using an o-chlorophenol solution (concentration: 0.5 g / dl).
- the thermoplastic resin composition is excellent in mechanical properties and can be suitable as synthetic fibers.
- thermoplastic resin according to one embodiment of the present invention may be either the polyamide resin or the polyester resin, respectively, or a combination thereof, depending on the application.
- the weight ratio of the polyamide resin and the polyester resin may be about 1:99 to about 99: 1.
- the zinc oxide of the present invention is capable of improving the weather resistance and antimicrobial properties of the thermoplastic resin composition and is characterized in that the peak A in the region of 370 to 390 nm and the ratio of the peak B in the region of 450 to 600 nm (B / A) of from about 0.01 to about 1.0, such as from about 0.1 to about 1.0, specifically from about 0.2 to about 0.7. If the size ratio (B / A) of the peak A and the peak B of the zinc oxide is less than about 0.01, antimicrobiality and the like may be deteriorated. When the ratio B / A is more than about 1.0, the problem of initial discoloration of the thermoplastic resin, There is a concern.
- the zinc oxide may have various shapes and may include, for example, spheres, plates, rods, combinations thereof, and the like.
- the average particle size (D50) of single particles (the particles do not form secondary particles) measured by using a particle size analyzer (Beckman Coulter's Laser Diffraction Particle Size Analyzer LS I3 320 equipment) is about From about 0.8 to about 3 microns, such as from about 1 to about 3 microns.
- the thermoplastic resin composition may be excellent in discoloration resistance, weather resistance, and the like.
- the average particle size (D50) of the zinc oxide is less than about 0.8 m, the discoloration resistance (weather resistance) and the like may be lowered.
- the average particle size is more than about 3 m, there is a possibility that the impact resistance and the like may be lowered.
- the zinc oxide has a peak position 2 ⁇ value in the range of 35 to 37 ° in X-ray diffraction (XRD) analysis, and the measured FWHM value (Full of diffraction peak the crystallite size value calculated by applying Scherrer's equation (Equation 1) based on the width at half maximum may be about 1,000 to about 2,000 A, for example, about 1,200 to about 1,800 A.
- the initial color of the thermoplastic resin composition, weather resistance (discoloration resistance), antimicrobial property, mechanical property balance thereof and the like can be excellent.
- K is a shape factor,? Is an X-ray wavelength,? Is an FWHM value (degree) of an X-ray diffraction peak,? Is a peak position value (peak position degree).
- the zinc oxide may have a specific surface area BET of less than or equal to about 10 m < 2 > / g, as measured by a BET analytical instrument (Micromeritics Surface Area and Porosity Analyzer ASAP 2020 instrument) To about 7 m < 2 > / g, and the purity may be greater than about 99%.
- the thermoplastic resin composition may have excellent mechanical properties, discoloration resistance, and the like.
- the zinc oxide may be prepared by melting zinc in the form of a metal and then heating to about 850 to about 1000 ⁇ , such as about 900 to about 950 ⁇ , And then heating at about 400 to about 900 DEG C, for example, about 500 to about 800 DEG C for about 30 to about 150 minutes, for example, about 60 to about 120 minutes.
- the zinc oxide may be included in an amount of from about 1 to about 5 parts by weight, for example, from about 2 to about 4 parts by weight, relative to about 100 parts by weight of the rubber-modified aromatic vinyl-based copolymer resin.
- zinc oxide is contained in an amount of less than about 1 part by weight based on about 100 parts by weight of the rubber-modified aromatic vinyl copolymer resin, the weather resistance, antimicrobial properties, and the like of the thermoplastic resin composition may be lowered.
- the zinc oxide is more than about 5 parts by weight , The mechanical properties of the thermoplastic resin composition may be deteriorated.
- the thermoplastic resin composition according to one embodiment of the present invention may further include an additive contained in a conventional thermoplastic resin composition.
- the additives include, but are not limited to, a flame retardant, a filler, an antioxidant, a dripping inhibitor, a lubricant, a releasing agent, a nucleating agent, an antistatic agent, a stabilizer, a pigment, a dye and mixtures thereof.
- the content thereof may be about 0.001 to about 40 parts by weight, for example about 0.1 to about 10 parts by weight, relative to about 100 parts by weight of the thermoplastic resin.
- thermoplastic resin composition according to one embodiment of the present invention is prepared by mixing the above components and melt-extruding at a temperature of about 200 to about 280 ⁇ , for example, about 220 to about 250 ⁇ , using a conventional twin-screw extruder. .
- thermoplastic resin composition is prepared by measuring the initial color (L 0 * , a 0 * , b 0 * ) using a colorimeter for a 50 mm ⁇ 90 mm ⁇ 2.5 mm size injection sample, (L 1 * , a 1 * , b 1 * ) after the test using a colorimeter, and then the color change ( ⁇ E) is about 2 to about 7, for example from about 3 to about 6:
- ⁇ L * is a difference (L 1 * -L 0 *) in the L * values before and after the test
- ⁇ a * is the difference between (a 1 * - a 0 * ) of the a * values before and after the test
- ⁇ b * Is the difference (b 1 * - b 0 * ) between the values of b * before and after the test.
- the thermoplastic resin composition has antibacterial effect against various bacteria such as Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella, Pneumococcus and MRSA (Methicillin-Resistant Staphylococcus aureus)
- the antimicrobial activity values calculated according to the following formula 3 were independently in the range of about 2 to about 7 , For example from about 2 to about 5.
- Antibacterial activity log (M1 / M2)
- M1 is the number of bacteria after 24 hours of incubation for the blank specimen
- M2 is the number of bacteria after 24 hours of incubation for the thermoplastic resin composition specimen.
- the "blank specimen” is a control specimen of the test specimen (thermoplastic resin composition specimen). Specifically, in order to confirm whether or not the inoculated bacteria were normally grown, bacteria were inoculated on a petri dish and incubated for 24 hours in the same manner as the test specimens. The antibacterial activity of the test specimens . In addition, the "number of bacteria” can be counted by inoculating each specimen with the bacteria, orienting it for 24 hours, collecting the inoculated bacterial solution, diluting it, and growing it into a colony again on a culture dish. Colony grows too much, and when century is difficult, divide the divisions and count them, then convert them to actual numbers.
- the molded article according to the present invention is formed from the thermoplastic resin composition.
- the antimicrobial thermoplastic resin composition may be produced in the form of a pellet.
- the pellet may be manufactured into various molded articles through various molding methods such as injection molding, extrusion molding, vacuum molding, and casting molding. Such molding methods are well known to those of ordinary skill in the art to which the present invention pertains.
- the molded article is excellent in weather resistance, antimicrobial properties, mechanical properties, and physical properties, and is thus useful as an antimicrobial functional product frequently used in body contact. Especially, it is useful as an antibacterial synthetic fiber.
- thermoplastic resin (A) a thermoplastic resin
- Polyamide 66 (manufacturer: Rhodia, product name: STABAMID 23AE1K) was used.
- PBT Polybutylene terephthalate
- the ratio of the peak A in the region of 370 to 390 nm to the peak B in the region of 450 to 600 nm (in terms of the average particle size, the BET surface area, the purity and the photo luminescence) of the zinc oxide (B1, B2, B3) B / A) and the crystallite size were measured and are shown in Table 1 below.
- Average particle size (unit: ⁇ ⁇ ): The average particle size (volume average) was measured using a particle size analyzer (Beckman Coulter Laser Diffraction Particle Size Analyzer LS I3 320 instrument).
- BET surface area (unit: m 2 / g): The BET surface area was measured with a BET analyzer (Micromeritics Surface Area and Porosity Analyzer ASAP 2020 instrument) using a nitrogen gas adsorption method.
- Purity (unit:%): Purity was measured using TGA thermal analysis at a temperature of 800 ° C.
- PL size ratio (B / A): According to the photoluminescence measurement method, the spectrum emitted from a He-Cd laser (KIMMON company, 30 mW) having a wavelength of 325 nm at room temperature is measured by a CCD detector The temperature of the CCD detector was maintained at -70 °C. (B / A) of the peak A in the 370 to 390 nm region and the peak B in the 450 to 600 nm region was measured.
- the injection specimen was subjected to PL analysis by injecting a laser into the specimen without any additional treatment.
- the zinc oxide powder was placed in a pelletizer having a diameter of 6 mm and pressed to form a flat specimen. Respectively.
- K is a shape factor,? Is an X-ray wavelength,? Is an FWHM value (degree) of an X-ray diffraction peak,? Is a peak position value (peak position degree).
- the above components were added in the amounts shown in Tables 2 and 3, and then extruded at 230 ⁇ to prepare pellets.
- the pellets were extruded at a temperature of 230 DEG C and a mold temperature of 60 DEG C for 6 hours at 80 DEG C for 4 hours or more, .
- the properties of the prepared specimens were evaluated by the following methods, and the results are shown in Tables 2 and 3 below.
- ⁇ L * is a difference (L 1 * -L 0 *) in the L * values before and after the test
- ⁇ a * is the difference between (a 1 * - a 0 * ) of the a * values before and after the test
- ⁇ b * Is the difference (b 1 * - b 0 * ) between the values of b * before and after the test.
- Antibacterial activity value Staphylococcus aureus and E. coli were inoculated on a 5 cm x 5 cm specimen according to JIS Z 2801 antibacterial evaluation method, and cultured at 35 ° C and RH 90% for 24 hours. Respectively.
- Antibacterial activity log (M1 / M2)
- M1 is the number of bacteria after 24 hours of incubation for the blank specimen
- M2 is the number of bacteria after 24 hours of incubation for the thermoplastic resin composition specimen.
- Antibacterial activity value (Staphylococcus aureus) 4.6 4.6 4.6 4.6 Notch Izod impact strength 3.1 2.7 3.5 3.0
- thermoplastic resin composition of the present invention is excellent in all of weather resistance (color change (? E)), antimicrobial activity (antibacterial activity value) and mechanical properties (notched Izod impact strength).
- Comparative Examples 1 and 5 in which zinc oxide was used in an amount less than the content range of the present invention, antimicrobial activity, weather resistance and the like were lowered.
- Comparative Examples 2 and 6 in which the content exceeded the content range of the present invention, And the physical properties (impact resistance) and the like of the zinc oxide (B3) were lowered.
- Comparative Examples 3 and 4 using zinc oxide (B2) it was found that the weather resistance and mechanical properties were lowered. 8, the weatherability and mechanical properties were also deteriorated.
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Abstract
Description
| (B1) | (B2) | (B3) | |
| 평균 입자 크기 (㎛) | 1.2 | 0.890 | 3.7 |
| BET 표면적 (m2/g) | 4 | 15 | 14 |
| 순도 (%) | 99 | 97 | 97 |
| PL 크기비(B/A) | 0.28 | 9.8 | 9.5 |
| 미소결정 크기 (Å) | 1417 | 503 | 489 |
| 실시예 | ||||
| 1 | 2 | 3 | 4 | |
| (A1) (중량부) | 100 | 100 | - | - |
| (A2) (중량부) | - | - | 100 | 100 |
| (B1) (중량부) | 2 | 4 | 2 | 4 |
| (B2) (중량부) | - | - | - | - |
| (B3) (중량부) | - | - | - | - |
| 내후성 평가 (ΔE) | 5.2 | 3.6 | 5.5 | 3.9 |
| 항균 활성치 (대장균) | 6.3 | 6.2 | 6.1 | 6.3 |
| 항균 활성치 (포도상구균) | 4.6 | 4.6 | 4.6 | 4.6 |
| 노치 아이조드 충격강도 | 3.1 | 2.7 | 3.5 | 3.0 |
| 비교예 | ||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| (A1) (중량부) | 100 | 100 | 100 | 100 | - | - | - | - |
| (A2) (중량부) | - | - | - | - | 100 | 100 | 100 | 100 |
| (B1) (중량부) | 0.5 | 6 | - | - | 0.5 | 6 | - | - |
| (B2) (중량부) | - | - | 2 | 4 | - | - | - | - |
| (B3) (중량부) | - | - | - | - | - | - | 2 | 4 |
| 내후성 평가 (ΔE) | 7.2 | 2.5 | 7.6 | 8.2 | 7.5 | 2.6 | 8.4 | 9.6 |
| 항균 활성치 (대장균) | 1.2 | 6.2 | 6.1 | 6.3 | 0.8 | 6.3 | 6.1 | 6.2 |
| 항균 활성치 (포도상구균) | 0.8 | 4.6 | 4.6 | 4.6 | 0.6 | 4.6 | 4.6 | 4.6 |
| 노치 아이조드 충격강도 | 3.2 | 1.8 | 2.1 | 1.6 | 3.8 | 2.0 | 2.2 | 1.8 |
Claims (12)
- 폴리아미드 수지 및 폴리에스테르 수지 중 1종 이상을 포함하는 열가소성 수지 약 100 중량부; 및산화아연 약 1 내지 약 5 중량부를 포함하며,상기 산화아연은 입도분석기로 측정한 평균 입자 크기(D50)가 약 0.8 내지 약 3 ㎛이고, 광 발광(Photo Luminescence) 측정 시, 370 내지 390 nm 영역의 피크 A와 450 내지 600 nm 영역의 피크 B의 크기비(B/A)가 약 0.01 내지 약 1.0인 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항에 있어서, 상기 폴리아미드 수지는 지방족 폴리아미드 수지, 반방향족 폴리아미드 수지 또는 이들의 조합을 포함하는 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항 또는 제2항에 있어서, 상기 폴리에스테르 수지는 폴리에틸렌테레프탈레이트, 폴리부틸렌테레프탈레이트, 폴리에틸렌나프탈레이트, 폴리트리메틸렌테레프탈레이트 및 폴리시클로헥실렌테레프탈레이트 중 1종 이상을 포함하는 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 산화아연은 X선 회절(X-ray diffraction, XRD) 분석 시, 피크 위치(peak position) 2θ 값이 35 내지 37° 범위이고, 하기 식 1에 의한 미소결정의 크기(crystallite size) 값이 미소결정의 크기(crystallite size) 값이 약 1,000 내지 약 2,000 Å인 것을 특징으로 하는 열가소성 수지 조성물:[식 1]상기 식 1에서, K는 형상 계수(shape factor)이고, λ는 X선 파장(X-ray wavelength)이고, β는 X선 회절 피크(peak)의 FWHM 값(degree)이며, θ는 피크 위치 값(peak position degree)이다.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 산화아연은 광 발광(Photo Luminescence) 측정 시, 370 내지 390 nm 영역의 피크 A와 450 내지 600 nm 영역의 피크 B의 크기비(B/A)가 약 0.1 내지 약 1.0인 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 산화아연은 입도분석기로 측정한 평균 입자 크기(D50)가 약 1 내지 약 5 ㎛인 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 산화아연은 질소가스 흡착법을 사용하여, BET 분석 장비로 측정한 비표면적 BET가 약 10 m2/g 이하인 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 산화아연은 질소가스 흡착법을 사용하여, BET 분석 장비로 측정한 비표면적 BET가 약 1 내지 약 7 m2/g인 것을 특징으로 하는 열가소성 수지 조성물.
- 제1항 내지 제8항 중 어느 한 항에 있어서, 상기 열가소성 수지 조성물은 50 mm × 90 mm × 2.5 mm 크기 사출 시편에 대해 색차계를 사용하여 초기 색상(L0 *, a0 *, b0 *)을 측정하고, 상기 사출 시편을 ASTM D4459에 의거하여, 3,000 시간 동안 테스트하고, 색차계를 사용하여 테스트 후 색상(L1 *, a1 *, b1 *)을 측정한 다음, 하기 식 2에 따라 산출한 색상 변화(ΔE)가 약 2 내지 약 7인 것을 특징으로 하는 열가소성 수지 조성물:[식 2]상기 식 2에서, ΔL*는 테스트 전후의 L* 값의 차이(L1 *-L0 *)이고, Δa*는 테스트 전후의 a* 값의 차이(a1 *- a0 *) 이며, Δb*는 테스트 전후의 b* 값의 차이(b1 *- b0 *)이다.
- 제1항 내지 제9항 중 어느 한 항에 있어서, 상기 열가소성 수지 조성물은 JIS Z 2801 항균 평가법에 의거하여, 5 cm × 5 cm 크기 시편에 황색포도상구균 및 대장균을 접종하고, 35℃, RH 90% 조건에서 24시간 배양 후, 하기 식 3에 따라 산출한 항균 활성치가 각각 약 2 내지 약 7인 것을 특징으로 하는 열가소성 수지 조성물:[식 3]항균 활성치 = log(M1/M2)상기 식 3에서, M1은 블랭크(blank) 시편에 대한 24시간 배양 후 세균 수이고, M2는 열가소성 수지 조성물 시편에 대한 24시간 배양 후 세균 수이다.
- 제1항에 내지 제10항 중 어느 한 항에 따른 열가소성 수지 조성물로부터 형성되는 것을 특징으로 하는 성형품.
- 제11항에 있어서, 상기 성형품은 합성 섬유인 것을 특징으로 하는 성형품.
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| JP2020521411A JP7315541B2 (ja) | 2017-12-26 | 2018-12-18 | 熱可塑性樹脂組成物およびこれから製造された成形品 |
| US16/757,492 US20210371654A1 (en) | 2017-12-26 | 2018-12-18 | Thermoplastic Resin Composition and Molded Product Manufactured Therefrom |
| CN201880072900.3A CN111344340B (zh) | 2017-12-26 | 2018-12-18 | 热塑性树脂组合物和由其制造的模塑产品 |
| EP18895611.4A EP3733752B1 (en) | 2017-12-26 | 2018-12-18 | Thermoplastic resin composition and molded product manufactured therefrom |
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| KR1020180142400A KR102253248B1 (ko) | 2017-12-26 | 2018-11-19 | 열가소성 수지 조성물 및 이로부터 제조된 성형품 |
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| US12084569B2 (en) | 2018-11-30 | 2024-09-10 | Lotte Chemical Corporation | Thermoplastic resin composition and molded article formed therefrom |
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