WO2023013917A1 - 방염 폴리에스테르 데코 시트 - Google Patents
방염 폴리에스테르 데코 시트 Download PDFInfo
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- WO2023013917A1 WO2023013917A1 PCT/KR2022/010324 KR2022010324W WO2023013917A1 WO 2023013917 A1 WO2023013917 A1 WO 2023013917A1 KR 2022010324 W KR2022010324 W KR 2022010324W WO 2023013917 A1 WO2023013917 A1 WO 2023013917A1
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- flame retardant
- skin layer
- core layer
- retardant polyester
- polyphosphonate
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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
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/022—Mechanical properties
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/023—Optical properties
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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
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
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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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
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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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/244—All polymers belonging to those covered by group B32B27/36
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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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
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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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/102—Oxide or hydroxide
- B32B2264/1022—Titania
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/737—Dimensions, e.g. volume or area
- B32B2307/7375—Linear, e.g. length, distance or width
- B32B2307/7376—Thickness
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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
- B32B2451/00—Decorative or ornamental articles
Definitions
- the present invention relates to a synthetic resin film with excellent flame retardant performance, and more specifically, to a flame retardant polyester decorative sheet having a multilayer structure of polyester having excellent flame retardant performance and flame retardancy and used for interior/exterior building materials, floor materials, and other decorative purposes. It's about
- decoration sheets are sheets having various colors and patterns, and are attached to the surface of various office/residential furniture such as wardrobes or desks, or to building materials and interior surfaces to provide various visual/tactile effects to users.
- These decorative sheets are manufactured by manufacturing a plastic resin such as polyvinyl chloride resin or polypropylene resin in the form of a sheet and applying various colors and patterns. As the use area of the decorative sheet having such a specific color and pattern gradually expands, in addition to providing simple colors and patterns, a decorative sheet that gives various visual effects on the surface of the decorative sheet through additional materials is being used. Such decorative sheets are widely used in indoor spaces as various interior accessories.
- polyester film which is widely used as a decorative sheet, is not toxic, unlike polyvinyl chloride, and has excellent appearance quality, thereby meeting eco-friendly requirements.
- polyester film it has a disadvantage in that it is vulnerable to fire because it has a property that burns well.
- flame retardancy flame retardancy
- flame retardancy is also required for decorative sheets, so the use of polyester as decorative sheets is limited.
- polyester decor sheets As such, as the demand for polyester decor sheets increases due to the eco-friendly demand to solve the toxicity problem of polyvinyl chloride decor sheets, the development of flame retardant polyester decor sheets is required.
- the present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is a polyester resin-based decorative sheet, which imparts flame retardancy to the polyester decorative sheet, and in particular, the flame retardant of Fire Agency Notice No. 2019-2 It is to provide a flame retardant polyester decorative sheet that satisfies the performance standards and at the same time solves the discoloration problem caused by the flame retardant even though the flame retardant is imparted and has a low color deviation.
- a flame retardant polyester decorative sheet comprising a core layer containing a polyester resin and polyphosphonate and a skin layer containing a polyester resin and polyphosphonate located on at least one surface of the core layer. do.
- it may further include a protective coating layer containing a phosphorus-based flame retardant located on the surface of the skin layer.
- the flame retardant polyester decor sheet may have a phosphorus (P) content of 4,000 to 15,000 ppm.
- the color difference value difference (dE) of the flame retardant polyester decor sheet may be 0.5 or less compared to the decor sheet to which polyphosphonate is not added in the flame retardant polyester decor sheet.
- the content of polyphosphonate in the core layer and the skin layer may satisfy Equation 1.
- the tensile strength ratio according to Equation 2 of the flame retardant polyester decorative sheet may be 0.7 to 1.
- Tensile strength ratio Tensile strength of flame retardant polyester decorative sheet / Tensile strength of decorative sheet without adding polyphosphonate
- the core layer and the skin layer may further include a color master batch formed by mixing 10 to 50 parts by weight of a color dye or pigment with 100 parts by weight of a polyester resin.
- the skin layer may contain more of the color master batch than the core layer.
- the core layer may contain 4 to 12% by weight of the color master batch based on the total weight of the core layer, and the skin layer may include 25 to 35% by weight of the color master batch based on the total weight of the skin layer. .
- the flame retardant polyester decorative sheet may have a thickness of 0.20 to 0.60 mm.
- the flame retardant polyester decor sheet according to an embodiment of the present invention uses a polyphosphonate flame retardant for each layer of the multi-layered polyester decor sheet and coats a hard coating solution containing a phosphorus-based flame retardant, followed by drying and UV curing, respectively.
- a polyphosphonate flame retardant for each layer of the multi-layered polyester decor sheet and coats a hard coating solution containing a phosphorus-based flame retardant, followed by drying and UV curing, respectively.
- a protective coating layer it is possible to provide a polyester decorative sheet having flame retardant performance, and in particular, it is possible to provide a decorative sheet that satisfies the flame retardant performance standard of Fire Agency Notification No. 2019-2.
- the flame retardant polyester decor sheet according to an embodiment of the present invention solves the discoloration problem caused by the flame retardant while satisfying the flame retardant, so that the flame retardant polyester decor sheet has a color deviation equivalent to that of conventional decor sheet products without using a flame retardant.
- FIG. 1 is a schematic cross-sectional view of a flame retardant polyester decorative sheet according to an embodiment of the present invention.
- Figure 2 is a flow chart showing a method for manufacturing a flame-retardant polyester decorative sheet according to an embodiment of the present invention.
- FIG. 1 is a schematic cross-sectional view of a flame retardant polyester decorative sheet according to an embodiment of the present invention.
- the flame retardant polyester decor sheet is located on at least one surface of the core layer 10 and the core layer 10 including a polyester resin and polyphosphonate. It includes a skin layer 20 including a polyester resin and polyphosphonate, and is formed by being applied to the surface of the skin layer 20 and may further include a protective coating layer 30 containing a phosphorus-based flame retardant.
- the flame retardant polyester decor sheet according to an embodiment of the present invention may have a skin layer/core layer laminated structure in which the skin layer 20 is laminated on one side of the core layer 10, and both sides of the core layer 10
- the skin layer 20 may have a laminated structure of a skin layer/core layer/skin layer in which the skin layer 20 is laminated.
- the core layer 10 is located in the center of the flame retardant polyester decor sheet and is composed of a mixture of polyphosphonate, a flame retardant material, with a polyester resin.
- the skin layer 20 is located outside the core layer 20 and, in the same manner as the core layer 10, is composed of a polyester resin mixed with a flame retardant polyphosphonate.
- co-polyester may be used as the polyester resin constituting the core layer 10 and the skin layer 20, and cost reduction may be implemented by adding recycled raw materials as necessary.
- the dicarboxylic acids forming the copolymerized polyester resin are isophthalic acid, 2,6-naphthalenedicarboxylic acid, sebacic acid, adipic acid, diphenyldicarboxylic acid, 5-tertiary butyl isophthalic acid, 2,2 ,6,6-tetramethyldiphenyl-4,4-dicarboxylic acid, 1,1,3-trimethyl-3-phenylindan-4,5-dicarboxylic acid, 5-sodium sulfoisophthalic acid, trimellitic acid , oxalic acid, malonic acid, succinic acid, glutaric acid, pimeric acid, azelaic acid, pyromellitic acid, 1,4-cyclohexanedicarboxylic acid, 1,3-cyclohexanedicarboxylic acid and dimethyl-1,4 -It is preferably at least one selected from the group consisting of cyclohexanedicarboxylic acid.
- the diol component forming the copolymerized polyester resin is diethylene glycol, triethylene glycol, hexanediol, pentanediol, diol of 2,2-(4-oxyphenol) propane derivative, xylene glycol, 1,4-butanediol , 1,3-butanediol, 1,2-butanediol, 1,3-propanediol, 1,2-propanediol, 1,4-cyclohexanedimethanol, 1,3-cyclohexanedimethanol, 2,2-bis (4-hydroxyphenyl)propane, bis(4-hydroxyphenyl)sulfone, polytetramethylene glycol, polyethylene glycol, 2-methyl-1,3-propanediol and 2,2-dimethyl-1,3-propanediol It is preferably any one or more selected from the group consisting of.
- the polyester resin constituting the core layer 10 and the skin layer 20 may be composed of glycol-modified polyethylene terephthalate (PET-G) and polybutylene terephthalate (PBT).
- PET-G glycol-modified polyethylene terephthalate
- PBT polybutylene terephthalate
- Glycol modified polyethylene terephthalate (PET-G) resin included in glycol-modified polyethylene terephthalate (PET-G) is terephthalic acid (TPA), ethylene glycol (EG), cyclohexane
- TPA terephthalic acid
- EG ethylene glycol
- CHDM Cyclohexanedimethanol
- it has excellent processability, moldability and printability, no deformation due to shrinkage, excellent impact resistance, no chlorine gas when incinerated or fire occurs, and environmental hormones, etc. It is suitable for the present invention used as a decorative sheet because it has no harmful ingredients.
- Polybutylene terephthalate is a crystalline polymer and has characteristics of improving solvent resistance and flexibility when forming a skin layer. Through this, when the protective coating layer 30 is coated on the skin layer 20, it has an effect of preventing the coating liquid from penetrating into the skin layer 20, and the core layer 10 and the skin layer 20 have high solvent resistance. ) is not damaged and has the advantage of increasing elongation. In addition, since the PBT is mixed with the core layer 10 and the skin layer 20, the molding temperature is lowered to increase high elongation and improve cloudiness.
- the thickness of the flame-retardant polyester decor sheet having a skin layer/core layer/skin layer structure is preferably 0.20 to 0.60 mm. If the thickness is less than 0.20mm, there is a problem of color and strength degradation due to an increase in the flame retardant ratio, and if it is more than 0.60mm, there is a problem of additional cost increase due to an increase in the ratio of expensive sheets in furniture construction.
- the content of polyphosphonate in the core layer and the skin layer varies depending on the product thickness, and preferably satisfies Equation 1 below.
- the core layer 10 when the product thickness is 0.60 mm, the core layer 10 contains 4.3% by weight of polyphosphonate based on the total weight of the core layer 10, and when the product thickness is 0.20 mm, it contains 12.8% by weight. it is desirable
- the skin layer 20 contains 4.3% by weight of polyphosphonate based on the total weight of the skin layer 20, and when the product thickness is 0.20mm, 12.8% by weight. It is preferable to include
- Equation 1 exceeds 2.58 (excessive polyphosphonate content), the tensile strength is lowered, and when the value of Equation 1 is less than 2.56 (low polyphosphonate content), the flame retardant performance is insufficient. do.
- the core layer 10 and the skin layer 20 preferably further include a color master batch made of a color dye or pigment and a polyester resin, and the skin layer 20 is more of a color master batch than the core layer 10. It is more preferable to include a higher content.
- the color master batch is formed by mixing 10 to 50 parts by weight of color dyes or pigments with respect to 100 parts by weight of polyester.
- the core layer 10 includes 4 to 12% by weight of the color master batch based on the total weight of the core layer 10, and the skin layer 20 contains 25 to 35% by weight based on the total weight of the skin layer 20. It is preferable to include %.
- the color master batch content of the skin layer 10 is less than 25% by weight, there is a problem of causing color difference due to the color of polyphosphonate, and when it exceeds 35% by weight, the PET-G content in the skin layer is reduced due to the problem of sticking to wood It has a problem of deterioration of adhesion.
- the fuel or pigment contained in the flame retardant polyester decor sheet according to an embodiment of the present invention is for imparting shielding and colorability to the decor sheet, and is a group consisting of white, black, red, yellow, green, blue and purple.
- One or more dyes or pigments selected from may be included.
- inorganic pigments or organic pigments known to those skilled in the art may be used without limitation, as long as they do not decompose when preparing a color master batch and cause poor coloring or poor appearance.
- a typical white pigment may use inorganic particles such as titanium oxide, calcium carbonate, barium sulfate, magnesium carbonate, kaolin, silica, clay, calcium terephthalate, aluminum oxide, calcium phosphate, and the like, and melt-mixed with a copolymerized polyester resin.
- carbon black is widely used as a black pigment.
- red pigments, yellow pigments, green pigments, blue pigments, or purple pigments which are the basic colors of the Munsell color wheel, may be selected and used within a range of pigments well known to those skilled in the art.
- the protective coating layer 30 is formed by being applied to the surface of the skin layer 20, and includes a phosphorus-based flame retardant (Ammonium polyphosphate) and a UV curable resin (such as Aliphatic Urethane Acrylate).
- the protective coating layer 30 is formed by coating a hard coating solution in which a phosphorus-based flame retardant is mixed with a UV curable resin on the skin layer 20, drying it, and then curing it using a UV curing method.
- the thickness ratio (core layer thickness/skin layer thickness) of the core layer 10 and the skin layer 20 is preferably 5 to 7. If the thickness ratio is less than 5, there is a cost increase problem, and if it is more than 7, it is difficult to block discoloration of the color of the core layer due to insufficient skin layer.
- the flame retardant polyester decor sheet according to an embodiment of the present invention preferably has a phosphorus (P) content of 4,000 to 15,000 ppm.
- P phosphorus
- the appropriate amount of phosphorus added varies depending on the thickness and is determined according to the content of polyphosphonate.
- the phosphorus content of the polyphosphonate is an average of 10.75%, and it is possible to adjust the phosphorus content of the appropriate flame-retardant decor sheet for each thickness by adjusting the input amount of the polyphosphonate when producing the flame-retardant decor sheet.
- the phosphorus content is less than 4,000ppm, there is a problem of insufficient flame retardant performance, and if it is more than 15,000ppm, there is a risk of damage during cutting due to cost problems and difficult problems of sheet extrusion due to a decrease in viscosity and a decrease in tensile strength.
- the flame retardant polyester decor sheet according to an embodiment of the present invention has a difference in color difference value (dE) of 0.5 or less compared to a non-fire retardant general decor sheet of the same color. If the color difference value (dE) difference is more than 0.5, it is judged to be color dichromatic and has a difficult problem in parallel and switching use.
- the flame retardant polyester decor sheet according to an embodiment of the present invention preferably has a tensile strength ratio of 0.7 to 1 according to Equation 2 compared to the non-fire retardant polyester decor sheet having the same thickness.
- the tensile strength ratio according to Equation 2 is 0.7 or more, the difference in tensile strength due to the use of the flame retardant or the change in physical properties such as color difference specifications becomes excessively large.
- Tensile strength ratio Tensile strength of flame retardant polyester decorative sheet / Tensile strength of decorative sheet without adding polyphosphonate
- Figure 2 is a flow chart showing a method for producing a flame-retardant polyester decorative sheet according to an embodiment of the present invention.
- the method for producing a flame-retardant polyester decorative sheet is a first step (S101) of inputting the raw material of the core layer and the raw material of the skin layer into a melt extruder, respectively, each melt extruder
- the raw materials formed by mixing the polyester resin and polyphosphonate constituting the core layer and the skin layer are mixed with each other.
- the raw material of the core layer and the raw material of the skin layer may be prepared by adding a color master batch having different contents in addition to the polyester resin and the polyphosphonate, or a polyester containing color dye or pigment. It can be prepared by mixing a resin-based master batch, polyphosphonate and polyester-based virgin raw material.
- the raw material of the core layer and the raw material of the skin layer are extruded under a predetermined temperature condition.
- the two melt-extruded components are passed through a feed block and a T-Die to prepare each of the melt-extruded components into a layered sheet structure.
- it is a step of manufacturing a laminated sheet structure in the form of a skin layer/core layer or a skin layer/core layer/skin layer by using a method of extruding by connecting to different channels of a multi-layered T-Die.
- a flame retardant polyester decorative sheet according to an embodiment of the present invention is prepared.
- a color master batch composed of 50 parts by weight of a pigment composed of TiO 2 and 50 parts by weight of a polyester resin, a core layer raw material and a skin layer raw material including polyphosphonate and a polyester-based virgin flame retardant are melted in an extruder and skin for the core layer Feed each into the melt extruder for the layers.
- the mixing of raw materials introduced into the melt extruder for the core layer and the melt extruder for the skin layer is shown in Table 1.
- the core layer raw material and the skin layer raw material are extruded respectively at the temperature condition of the extrusion cylinder at 270 ° C, and the two melt-extruded components pass through the three-layer structured flow path and pass through the T-Die to produce a sheet structure with a cooling roll Cooled through the skin layer / core layer / skin layer structure to prepare a decorative sheet with a thickness of 0.40mm.
- a hard coating solution containing phosphorus-based flame retardant (Ammonium polyphosphate) and UV curing resin (Aliphatic Urethane Acrylate) is coated on one surface of the prepared sheet, dried, and then dried and cured by UV curing to form a protective coating layer to form a flame retardant coating.
- a polyester decor sheet was prepared.
- a flame retardant polyester decorative sheet was prepared in the same manner as in Example 1, except that the protective coating layer was not formed.
- a flame retardant polyester decor sheet was prepared in the same manner as in Example 2, except that the thickness of the decor sheet was 0.20 mm and the contents of the core layer and the skin layer were as shown in Table 1.
- a flame retardant polyester decor sheet was prepared in the same manner as in Example 2, except that the thickness of the decor sheet was 0.60 mm and the contents of the core layer and the skin layer were as shown in Table 1.
- Example 1 Example 2
- Example 3 Example 4 full thickness 0.40mm 0.40mm 0.20mm 0.60mm polyester virgin core layer 87.6 87.6 75.2 91.7 skin layer 63.6 63.6 52.2 70.7 polyphosphonate core layer 6.4 6.4 12.8 4.3 skin layer 6.4 6.4 12.8 4.3 color master batch core layer 6 6 12 4 skin layer 30 30 35 25
- a flame retardant polyester decorative sheet was prepared in the same manner as in Example 1, except that the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decorative sheet was prepared in the same manner as in Example 1, except that the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decorative sheet was prepared in the same manner as in Example 1, except that the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decorative sheet was prepared in the same manner as in Example 2, except that the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decor sheet was prepared in the same manner as in Example 2, except that the decor sheet thickness and the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decor sheet was prepared in the same manner as in Example 2, except that the decor sheet thickness and the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decor sheet was prepared in the same manner as in Example 2, except that the decor sheet thickness and the contents of the core layer and the skin layer were as shown in Table 2.
- a flame retardant polyester decor sheet was prepared in the same manner as in Example 2, except that the decor sheet thickness and the contents of the core layer and the skin layer were as shown in Table 2.
- the after-flame time, remaining time, carbon area, and carbonization are based on the 45° combustion test (inclination method) according to the detailed flame retardant performance test rules of the Korea Fire Industry and Technology Institute (KFI). Length and number of spots were measured. At this time, the same sample was repeated 3 times and each measurement was performed.
- Color values (L, a, b) and color difference (dE) were measured using a D65 light source and CM-2500d (Minolta Co.) according to the ASTM E1164 standard.
- the total permeability was measured on the top of the skin layer using COH-400 (Nippon Denshoku Co.).
- the phosphorus content of the prepared decorative sheet is measured using NMR measurement.
- Test Items test standard Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 One 2 3 One 2 3 One 2 3 One 2 3 45 degree Combustion test Afterburn time within 5 seconds 3.6 4.8 1.1 175.3 burnt down 80.1 29.1 26.7 29.3 31.4 36.5 23.3 rest time within 20 seconds 0 0 0 0 0 0 0 0 0 0 carbon area Within 40cm2 8.9 14.5 8.1 157.2 14.9 14.3 10.4 12.6 25.7 32.3 24.3 carbonization length within 20 cm 4 4.5 3.8 14.6 6.3 6 5.3 6.6 8.6 9.4 8.2 number of spots 3 times or more Not applicable Not applicable Not applicable Not applicable
- Example 1 is Comparative Example 1 using no polyphosphonate, Comparative Example 2 using polyphosphonate only in the core layer, and Comparative Example 3 using polyphosphonate only in the skin layer.
- Comparative Example 1 shows better results in after-flame time, remaining time, carbonized area, and carbonized length, and satisfies the flame retardant performance criteria of Notification No. 2019-2 of the National Fire Agency.
- Comparative Examples 1 to 3 do not satisfy the flame retardant performance standard of No. 2019-2 of the National Fire Agency Notice.
- the flame retardant polyester decorative sheet according to one embodiment of the present invention can satisfy the flame retardant performance standards of Fire Agency Notification No. 2019-2 by containing a predetermined polyphosphonate in both the skin layer and the core layer.
- Examples 2 to 4 according to an embodiment of the present invention satisfy color difference conditions, phosphorus content and tensile strength.
- Examples 2 to 4 have a difference in color difference value (dE*) compared to Comparative Example 1 of 0.5 or less.
- the tensile strength ratio according to Equation 2 below compared to Comparative Example 1 satisfies 0.7 to 1, and even though polyphosphonate, which is a flame retardant, was used, the decor sheet and color difference standard and tensile strength without using it It can be seen that the difference is very small.
- Tensile strength ratio Tensile strength of flame retardant polyester decorative sheet / Tensile strength of decorative sheet without adding polyphosphonate
- Comparative Example 5 in which the polyphosphonate is excessive, has a problem of insufficient tensile strength
- Comparative Example 6 in which the polyphosphonate is insufficient has a insufficient phosphorus content, and thus the flame retardant performance is insufficient.
- Comparative Example 7 in which the color master batch is excessive has a problem of insufficient tensile strength and unnecessary cost increase
- Comparative Example 8 in which the color master batch is insufficient has a problem in that the color difference (dE*) exceeds 0.5. there is.
- the flame retardant polyester decor sheet according to an embodiment of the present invention has a laminated structure of a skin layer and a core layer, and uses a polyphosphonate flame retardant in each layer to provide a decor sheet having flame retardant performance,
- the provided decorative sheet satisfies the flame retardant performance standard of No. 2019-2 of the National Fire Agency Notice.
- the flame retardant polyester decorative sheet according to an embodiment of the present invention as shown in the above-mentioned color difference value difference (dE*), in order to maintain a color deviation equivalent to that of a product without a flame retardant, the content of the color master batch is adjusted to the core. It can be seen that color discoloration was prevented by putting differently into the layer and the skin layer.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
| 단위(중량%) |
실시예1 | 실시예2 | 실시예3 | 실시예4 | |
| 전체 두께 | 0.40mm | 0.40mm | 0.20mm | 0.60mm | |
| 폴리에스테르 버진 | 코어층 | 87.6 | 87.6 | 75.2 | 91.7 |
| 스킨층 | 63.6 | 63.6 | 52.2 | 70.7 | |
| 폴리포스포네이트 | 코어층 | 6.4 | 6.4 | 12.8 | 4.3 |
| 스킨층 | 6.4 | 6.4 | 12.8 | 4.3 | |
| 칼라마스터 배치 | 코어층 | 6 | 6 | 12 | 4 |
| 스킨층 | 30 | 30 | 35 | 25 |
| 단위 (중량%) |
비교예1 | 비교예2 | 비교예3 | 비교예4 | 비교예5 | 비교예6 | 비교예7 | 비교예8 | |
| 전체 두께 | 0.40mm | 0.40mm | 0.40mm | 0.40mm | 0.20mm | 0.60mm | 0.20mm | 0.60mm | |
| 폴리 에스테르 버진 |
코어층 | 88.5 | 87.6 | 94 | 82.1 | 75 | 92 | 74.2 | 92.7 |
| 스킨층 | 88.5 | 70 | 63.6 | 82.1 | 52 | 71 | 51.2 | 71.7 | |
| 폴리포스포 네이트 |
코어층 | X | 6.4 | - | 6.4 | 13 | 4 | 12.8 | 4.3 |
| 스킨층 | X | - | 6.4 | 6.4 | 13 | 4 | 12.8 | 4.3 | |
| 칼라마스터 배치 | 코어층 | 11.5 | 6 | 6 | 11.5 | 12 | 4 | 13 | 3 |
| 스킨층 | 11.5 | 30 | 30 | 11.5 | 35 | 25 | 36 | 24 |
| 시험항목 | 시험기준 | 실시예1 | 비교예1 | 비교예2 | 비교예3 | |||||||||
| 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | |||
| 45도 연소 시험 |
잔염시간 | 5초이내 | 3.6 | 4.8 | 1.1 | 175.3 | 전소 | 80.1 | 29.1 | 26.7 | 29.3 | 31.4 | 36.5 | 23.3 |
| 잔신시간 | 20초이내 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 탄화면적 | 40㎠이내 | 8.9 | 14.5 | 8.1 | 157.2 | 14.9 | 14.3 | 10.4 | 12.6 | 25.7 | 32.3 | 24.3 | ||
| 탄화길이 | 20㎝이내 | 4 | 4.5 | 3.8 | 14.6 | 6.3 | 6 | 5.3 | 6.6 | 8.6 | 9.4 | 8.2 | ||
| 점염횟수 | 3회이상 | 해당없음 | 해당없음 | 해당없음 | 해당없음 | |||||||||
| L* | a* | b* | dE* (색차값 차이) |
투과도 (%) |
인 햠량 (ppm) |
인장강도 (Kgf/㎟) |
|
| Target DATA (비교예1) |
95.59 | -0.85 | 2.35 | - | 3.22 % | 0 | 3.98 |
| 실시예2 | 95.55 | -0.76 | 2.18 | 0.20 | 3.30 % | 6,880 | 3.24 |
| 실시예3 | 95.42 | -0.70 | 2.29 | 0.23 | 3.48 % | 13,760 | 2.91 |
| 실시예4 | 95.51 | -0.81 | 2.15 | 0.22 | 3.18 % | 4,623 | 3.68 |
| 비교예4 | 95.22 | -0.95 | 3.59 | 1.37 | 3.23 % | 6,880 | 3.30 |
| 비교예5 | 95.30 | -0.65 | 2.48 | 0.38 | 3.36 % | 16,125 | 2.58 |
| 비교예6 | 95.58 | -0.84 | 2.10 | 0.25 | 3.20 % | 3,225 | 3.80 |
| 비교예7 | 95.50 | -0.77 | 2.20 | 0.20 | 2.80 % | 13,760 | 2.71 |
| 비교예8 | 95.38 | -0.91 | 2.91 | 0.60 | 4.05 % | 4,623 | 3.71 |
Claims (10)
- 폴리에스테르 수지 및 폴리포스포네이트를 포함하는 코어층; 및상기 코어층의 적어도 일면에 위치하는, 폴리에스테르 수지 및 폴리포스포네이트를 포함하는 스킨층;을 포함하는, 방염 폴리에스테르 데코 시트.
- 제1항에 있어서,상기 스킨층의 표면에 위치하는 인계 난연제를 포함하는 보호코팅층을 더 포함하는, 방염 폴리에스테르 데코 시트.
- 제1항에 있어서,상기 방염 폴리에스테르 데코 시트는 인(P) 함량이 4,000 내지 15,000ppm인, 방염 폴리에스테르 데코 시트.
- 제1항에 있어서,상기 방염 폴리에스테르 데코 시트의 색차 값 차이(dE)는 상기 방염 폴리에스테르 데코 시트에서 폴리포스포스네이트를 첨가하지 않은 데코 시트 대비 0.5 이하인, 방염 폴리에스테르 데코 시트.
- 제1항에 있어서,상기 코어층 및 스킨층은 폴리포스네이트의 함량이 수학식 1을 만족하는, 방염 폴리에스테르 데코 시트.(수학식 1)2.56≤전체 데코 시트 두께(mm) X 폴리포스네이트 함량(중량%)≤2.58
- 제1항에 있어서,상기 방염 폴리에스테르 데코 시트의 수학식 2에 따른 인장 강도 비율은 0.7 내지 1인, 방염 폴리에스테르 데코 시트.(수학식 2)인장강도 비율= 방염 폴리에스테르 데코시트의 인장강도/폴리포스네이트를 첨가하지 않은 데코시트의 인장강도
- 제1항에 있어서,상기 코어층 및 상기 스킨층은 폴리에스테르 수지 100 중량부에 컬러염료 또는 안료 10 내지 50 중량부를 혼합하여 형성된 칼라마스터 배치를 더 포함하는, 방염 폴리에스테르 데코 시트.
- 제7항에 있어서,상기 스킨층은 상기 코어층보다 상기 칼라마스터 배치의 함량을 더 많이 포함하는, 방염 폴리에스테르 데코 시트.
- 제7항에 있어서,상기 코어층은 상기 칼라마스터 배치를 코어층 전체 중량에 대해 4 내지 12 중량%를 포함하고,상기 스킨층은 상기 칼라마스터 배치를 스킨층 전체 중량에 대해 25 내지 35 중량%를 포함하는, 방염 폴리에스테르 데코 시트.
- 제1항에 있어서,상기 방염 폴리에스테르 데코 시트의 두께는 0.20 내지 0.60mm인, 방염 폴리에스테르 데코 시트.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22853296.6A EP4324643A4 (en) | 2021-08-06 | 2022-07-15 | FIRE-RETARDANT POLYESTER DECORATIVE FILM |
| CN202280039230.1A CN117412864B (zh) | 2021-08-06 | 2022-07-15 | 阻燃聚酯装饰片 |
| US18/567,520 US12134251B2 (en) | 2021-08-06 | 2022-07-15 | Flame-retardant polyester decorative sheet |
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| KR1020210103603A KR102558324B1 (ko) | 2021-08-06 | 2021-08-06 | 방염 폴리에스테르 데코 시트 |
| KR10-2021-0103603 | 2021-08-06 |
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| WO2023013917A1 true WO2023013917A1 (ko) | 2023-02-09 |
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| US (1) | US12134251B2 (ko) |
| EP (1) | EP4324643A4 (ko) |
| KR (1) | KR102558324B1 (ko) |
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| KR102922051B1 (ko) * | 2023-09-15 | 2026-02-02 | 도레이첨단소재 주식회사 | 이축 연신 폴리에스테르 필름 및 이의 제조방법 |
| KR20250134875A (ko) | 2024-03-05 | 2025-09-12 | 주식회사 두성코리아 | 내매직성이 우수한 엑시머 경화형 방염 무광 도료 조성물, 이를 이용한 방염 무광 시트 및 그 제조방법 |
| KR20250155910A (ko) * | 2024-04-24 | 2025-10-31 | 도레이첨단소재 주식회사 | 금속 질감의 데코시트 및 이의 제조방법 |
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| EP3659676A1 (en) * | 2018-11-27 | 2020-06-03 | SABIC Global Technologies B.V. | Rail interior compliant thermoplastic composite |
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2021
- 2021-08-06 KR KR1020210103603A patent/KR102558324B1/ko active Active
-
2022
- 2022-07-15 US US18/567,520 patent/US12134251B2/en active Active
- 2022-07-15 CN CN202280039230.1A patent/CN117412864B/zh active Active
- 2022-07-15 EP EP22853296.6A patent/EP4324643A4/en active Pending
- 2022-07-15 WO PCT/KR2022/010324 patent/WO2023013917A1/ko not_active Ceased
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| Publication number | Publication date |
|---|---|
| KR102558324B1 (ko) | 2023-07-20 |
| EP4324643A1 (en) | 2024-02-21 |
| KR20230021806A (ko) | 2023-02-14 |
| US20240269971A1 (en) | 2024-08-15 |
| CN117412864B (zh) | 2025-11-18 |
| US12134251B2 (en) | 2024-11-05 |
| CN117412864A (zh) | 2024-01-16 |
| EP4324643A4 (en) | 2024-11-06 |
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