KR100956333B1 - Polyester film having good flexibilty - Google Patents
Polyester film having good flexibilty Download PDFInfo
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- KR100956333B1 KR100956333B1 KR1020070135339A KR20070135339A KR100956333B1 KR 100956333 B1 KR100956333 B1 KR 100956333B1 KR 1020070135339 A KR1020070135339 A KR 1020070135339A KR 20070135339 A KR20070135339 A KR 20070135339A KR 100956333 B1 KR100956333 B1 KR 100956333B1
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
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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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
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- 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
- C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08J2367/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
본 발명은 (a) 폴리에틸렌테레프탈레이트 수지, 및 (b) 에폭시계 또는 폴리에스테르계 가소제, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 또는 이들의 혼합물을 포함하되, 상기 성분 (b)를 상기 성분 (a) 100 중량부당 1 내지 100 중량부로 포함하는 폴리에스테르 필름에 관한 것이다. 본 발명의 폴리에스테르 필름은 가공성과 함께 유연성이 우수하여 가정용 또는 상업용 실내장식, 특히 인테리어, 데코레이션, 막 성형, 인쇄재료, 라벨 등에 유용하게 이용될 수 있다.The present invention comprises (a) a polyethylene terephthalate resin, and (b) an epoxy or polyester plasticizer, a butyl acrylate methylmethacrylate copolymer or mixtures thereof, wherein the component (b) It relates to a polyester film containing 1 to 100 parts by weight per 100 parts by weight. The polyester film of the present invention can be usefully used for home or commercial interior decoration, especially interior, decoration, film forming, printing materials, labels, etc., with excellent flexibility with processability.
Description
본 발명은 가공성과 함께 유연성이 우수한 폴리에스테르 필름에 관한 것이다.The present invention relates to a polyester film having excellent flexibility with workability.
일반적으로 가정용 또는 상업용 인테리어 및 데코레이션에 사용되는 2층 이상의 다층 구조의 필름으로는 폴리염화비닐 필름이 주로 사용되며, 이밖에 종이, 폴리프로필렌 및 폴리에틸렌테레프탈레이트 필름 등이 사용되고 있다.In general, polyvinyl chloride film is mainly used as a multi-layered multi-layer film used for home or commercial interiors and decorations, and paper, polypropylene and polyethylene terephthalate films are used.
폴리염화비닐 필름의 경우, 가공성이 우수하나 연소시 염화수소 가스와 다이옥신 성분의 유독 가스가 발생하여 그 사용에 제한이 있다. 종이의 경우에는, 가격은 저렴하나 인쇄 후 인쇄 보호층을 합지할 수가 없어 인쇄의 질감이 떨어지며 종이 특성에 의해 다른 플라스틱 필름에 비해 기계적 물성이나 내후성 등이 떨어진다. 폴리프로필렌 및 폴리에틸렌테레프탈레이트 필름의 경우에는, 고분자의 결정성으로 인해 인쇄 보호층의 열합지가 어려우며 유연성이 부족하여 시공성에서 심각 한 문제가 야기되고 있다.In the case of the polyvinyl chloride film, the workability is excellent, but there is a limitation in its use because of the generation of toxic gases of hydrogen chloride gas and dioxin component during combustion. In the case of paper, although the price is low, the printing protective layer cannot be laminated after printing, and the texture of printing is reduced, and the mechanical properties and weather resistance of the paper are inferior to other plastic films. In the case of polypropylene and polyethylene terephthalate films, due to the crystallinity of the polymer, the thermal protective paper of the printing protective layer is difficult and the lack of flexibility causes serious problems in the workability.
따라서, 본 발명의 목적은 가공성과 함께 유연성이 우수한 폴리에스테르 필름을 제공하는 것이다.Accordingly, it is an object of the present invention to provide a polyester film having excellent flexibility with processability.
상기 목적을 달성하기 위하여, 본 발명은 (a) 폴리에틸렌테레프탈레이트 수지, 및 (b) 에폭시계 또는 폴리에스테르계 가소제, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 또는 이들의 혼합물을 포함하되, 상기 성분 (b)를 상기 성분 (a) 100 중량부당 1 내지 100 중량부로 포함하는 폴리에스테르 필름을 제공한다.In order to achieve the above object, the present invention comprises (a) a polyethylene terephthalate resin, and (b) an epoxy or polyester plasticizer, a butyl acrylate methyl methacrylate copolymer or a mixture thereof, wherein It provides a polyester film comprising b) 1 to 100 parts by weight per 100 parts by weight of the component (a).
본 발명에 따른 폴리에스테르 필름은 가공성과 함께 유연성이 우수하여, 가정용 또는 상업용 실내장식, 특히 인테리어, 데코레이션, 막 성형, 인쇄재료, 라벨 등에 유용하게 이용될 수 있다.The polyester film according to the present invention is excellent in flexibility with processability, and can be usefully used for home or commercial interior decoration, especially interior, decoration, film forming, printing materials, labels, and the like.
본 발명에 따른 폴리에스테르 필름은, (a) 폴리에틸렌테레프탈레이트 수지, 및 (b) 유연성 부여를 위한 첨가제로서 에폭시계 또는 폴리에스테르계 가소제, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 또는 이들의 혼합물을 포함한다.The polyester film according to the present invention comprises (a) a polyethylene terephthalate resin, and (b) an epoxy or polyester plasticizer, a butyl acrylate methylmethacrylate copolymer or a mixture thereof as an additive for imparting flexibility. do.
본 발명의 폴리에틸렌테레프탈레이트 수지는 주반복 단위의 60 중량% 이상, 바람직하게는 60 내지 75 중량%가 에틸렌테레프탈레이트 및 20 중량% 이상, 바람직하게는 25 내지 40 중량%가 사이클로헥산 디메탄올로 이루어진 무정형 공중합 폴리에틸렌테레프탈레이트 수지인 것이 바람직하다. 또한, 35 ℃에서 오르토-클로로페놀(ortho-chlorophenol) 25 ml당 0.3 g의 농도로 측정한 극한점도가 0.4 내지 0.9 dl/g의 범위, 바람직하게는 0.5 내지 0.9 dl/g의 범위인 수지가 바람직하다. 극한점도가 0.4 dl/g 미만인 폴리에스테르로 필름을 제작하면 연신 중 파단이 빈번히 발생하여 생산성이 저하될 뿐 아니라 최종 필름에서 기계적 강도 등 물성의 저하가 일어날 수 있다. 또한, 극한점도가 0.9 dl/g을 초과할 경우에는 용융점도가 매우 상승하여 전단 응력의 증가로 압출 불안정 등 제조 공정상 어려움이 발생하여, 후 공정에서의 생산성이 크게 저하될 수 있다.The polyethylene terephthalate resin of the present invention comprises at least 60% by weight, preferably 60 to 75% by weight of ethylene terephthalate and at least 20% by weight, preferably 25 to 40% by weight of cyclohexane dimethanol of the main repeating unit. It is preferable that it is an amorphous copolymerized polyethylene terephthalate resin. In addition, the resin having an intrinsic viscosity measured at a concentration of 0.3 g per 25 ml of ortho-chlorophenol at 35 ° C. in the range of 0.4 to 0.9 dl / g, preferably in the range of 0.5 to 0.9 dl / g desirable. When the film is made of polyester having an intrinsic viscosity of less than 0.4 dl / g, breakage occurs frequently during stretching, thereby lowering productivity, and lowering physical properties such as mechanical strength in the final film. In addition, when the intrinsic viscosity exceeds 0.9 dl / g, the melt viscosity is very high to increase the shear stress, causing difficulties in the manufacturing process, such as extrusion instability, the productivity in the post-process can be greatly reduced.
본 발명에서는 유연성을 부여하기 위하여, 폴리에틸렌테레프탈레이트 수지 100 중량부에 대해 에폭시계 또는 폴리에스테르계 가소제, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 또는 이들의 혼합물을 1 내지 100 중량부, 바람직하게는 1 내지 50 중량부로 첨가한다. 상기 에폭시계 또는 폴리에스테르계 가소제, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 또는 이들의 혼합물을 상기 기재된 범위보다 적은 양으로 사용할 경우 충분한 유연성을 얻을 수 없고, 초과해서 사용하는 경우 유연성은 좋을 수 있으나, 상기 성분들의 달라붙는 성질에 의해 칩의 뭉 침 현상이 발생될 수 있으며, 시트 압출시 용융수지의 유동성 문제로 인해 시트 양 끝단부에 꼬이는 현상이 나타날 수도 있다. 본 발명에서 사용되는 에폭시계 가소제로는 에폭시화 아마씨유 또는 에폭시화 대두유 등이 있으며, 에폭시화 아마씨유가 가장 바람직하다. 또한, 폴리에스테르계 가소제로는 폴리-2-에틸헥실글리콜아디페이트, 아디픽산 폴리에스테르 또는 시트릭산 폴리에스테르 등이 있으며, 폴리-2-에틸헥실글리콜아디페이트가 가장 바람직하다. 또한, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체는 시판되는 것을 사용하거나, 통상적인 방법으로 제조하여 사용할 수 있으며, 내부는 부틸아크릴레이트 반복단위이고 외부는 메틸메트아크릴레이트 반복단위로 이루어진 공중합체인 것이 바람직하다.In the present invention, in order to give flexibility, 1 to 100 parts by weight of an epoxy or polyester plasticizer, a butyl acrylate methyl methacrylate copolymer or a mixture thereof, based on 100 parts by weight of polyethylene terephthalate resin, preferably 1 To 50 parts by weight. When the epoxy or polyester plasticizer, butyl acrylate methyl methacrylate copolymer or a mixture thereof is used in an amount less than the above-described range, sufficient flexibility may not be obtained, and when used in excess, flexibility may be good. Agglomeration of chips may occur due to the sticking properties of the components, and the sheet may be twisted at both ends due to the flowability of the molten resin during sheet extrusion. Epoxy plasticizers used in the present invention include epoxidized flaxseed oil or epoxidized soybean oil, and epoxidized flaxseed oil is most preferred. In addition, examples of the polyester plasticizer include poly-2-ethylhexyl glycol adipate, adipic acid polyester or citric acid polyester, and poly-2-ethylhexyl glycol adipate is most preferred. In addition, the butyl acrylate methyl methacrylate copolymer may be commercially available, or may be prepared and used in a conventional manner, wherein the inside is a copolymer made of a butyl acrylate repeating unit and the outside of a methyl methacrylate repeating unit. Do.
상기 첨가제를 투입하는 방식으로는 다음과 같은 두 가지 방식이 모두 가능하다. 첫번째 방식은, 원활한 가소제의 흡수를 위해 폴리에틸렌테레프탈레이트 수지를 분쇄기로 분쇄하고 요구되는 유연성에 따라 필요 농도만큼의 에폭시계 또는 폴리에스테르계 가소제, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 또는 이들의 혼합물을 첨가하여 배합기에서 배합한 후 압출하는 방식이다. 두번째 방식은, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 적정량에 필요한 농도만큼의 에폭시계 또는 폴리에스테르계 가소제를 흡수시킨 후 폴리에틸렌테레프탈레이트 수지를 배합하는 방식이다. 이때, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체 대 에폭시계 또는 폴리에스테르계 가소제의 혼합 부피비는 1:1 내지 3:1이고, 가공 특성을 고려하여 혼합비는 1:1 내지는 1.5:1 정도가 바람직하다. 상기 첨가제를 그 자체로 직접 사용할 수 있고 고농도 마스터배치 칩으로 하여 요구되는 물성에 따라 희석하여 사용할 수도 있다.As the method of injecting the additive, both of the following methods are possible. In the first method, the polyethylene terephthalate resin is pulverized with a grinder for smooth plasticizer absorption, and epoxy or polyester plasticizer, butyl acrylate methyl methacrylate copolymer or a mixture thereof is prepared according to the required flexibility. It adds, mix | blends in a blender, and is extruded. The second method is a method in which a polyethylene terephthalate resin is blended after absorbing the epoxy- or polyester-based plasticizer in a concentration necessary for the appropriate amount of the butyl acrylate methylmethacrylate copolymer. In this case, the mixing volume ratio of the butyl acrylate methyl methacrylate copolymer to the epoxy or polyester plasticizer is 1: 1 to 3: 1, and the mixing ratio is preferably 1: 1 to 1.5: 1 in consideration of processing characteristics. . The additives can be used directly per se and can be diluted and used according to the required physical properties as a high concentration masterbatch chip.
본 발명의 첨가제의 분산 효과를 최대로 향상시키기 위해서는, 고농도 마스터배치 칩 기술에 따라, 첨가제를 최종 목적 농도보다 고농도로, 예컨대 60 내지 80 중량% 더 포함하는 폴리에스테르 마스터 칩을 1차적으로 제조한 후, 기존 일반 칩과 2차적으로 혼합, 희석하여 필름을 제조할 수 있다.In order to maximize the dispersing effect of the additive of the present invention, according to the high concentration masterbatch chip technology, a polyester master chip, which primarily contains an additive at a higher concentration than the final target concentration, for example, 60 to 80% by weight, is prepared. After that, the film may be prepared by mixing and diluting with a conventional general chip.
본 발명에 따르면, 상기 기재된 방식으로 첨가제를 폴리에틸렌테레프탈레이트 수지에 투입하여 단층 폴리에스테르 필름을 제조하거나, 또는 2층 이상을 적층하여 다층 폴리에스테르 필름을 제조할 수 있다.According to the invention, the additive can be added to the polyethylene terephthalate resin in the manner described above to produce a single layer polyester film, or two or more layers can be laminated to produce a multilayer polyester film.
본 발명의 폴리에스테르 필름은 그 제조 방법이 특별히 한정된 것은 아니며, 상기의 첨가제를 포함하는 폴리에스테르 수지 조성물을 티이-다이(T-die)법, 인플레이션(inflation)법 등에 의하여 용융 압출하여 극한 점도 0.4 내지 0.9 dl/g의 미연신 시트를 만든 후, 이를 이축 연신하고 열고정하여 본 발명의 폴리에스테르 필름을 제조할 수 있다.The method for producing the polyester film of the present invention is not particularly limited, and the polyester resin composition containing the above additive is melt-extruded by a T-die method, an inflation method, or the like, and the intrinsic viscosity is 0.4. After making a non-stretched sheet of 0.9 to dl / g, the biaxially stretched and heat-fixed it can be produced a polyester film of the present invention.
본 발명에 의하여 제조되는 필름은 축차 또는 동시 2축 연신 방법에 의하여 연신될 수 있는데, 이때 연신온도는 60 내지 130 ℃, 연신비는 종방향 및 횡방향으로 각각 2 내지 6 배 그리고 총 연신비는 8 내지 16 배로 한다. 연신비가 상기 조건을 벗어나는 경우 두께 편차가 발생할 수 있다.The film produced by the present invention can be stretched by a sequential or simultaneous biaxial stretching method, wherein the stretching temperature is 60 to 130 ℃, the stretching ratio is 2 to 6 times in the longitudinal and transverse directions, respectively, and the total stretching ratio is 8 to 16 times. Thickness deviation may occur when the draw ratio is outside the above conditions.
이어, 이축 연신된 폴리에스테르 필름은 양단부를 클립에 의해 파지한 상태에서 100 내지 150 ℃에서 열처리(열고정)를 하게 되는데, 열처리 온도가 100 ℃ 미만일 때는 열안정성이 떨어질 수 있고, 150 ℃를 초과할 경우 설비 내에서의 열 융착 및 필름의 평활도가 나빠질 수 있으며, 보잉현상의 증가에 따라 폭방향의 물성 편차 증가 및 두께 불균일이 발생할 수 있다.Subsequently, the biaxially stretched polyester film is subjected to heat treatment (thermal fixation) at 100 to 150 ° C. in a state in which both ends are gripped by a clip. In this case, thermal fusion and film smoothness in the installation may be deteriorated, and an increase in the boeing phenomenon may cause an increase in the property variation in the width direction and a thickness unevenness.
이와 같이 얻어진 필름은 용도에 따라 적절한 두께로 제조할 수 있으며, 예를 들어 단층 폴리에스테르 필름을 제조하는 경우 필름의 두께는 20 내지 300 ㎛일 수 있고, 다층 폴리에스테르 필름을 제조하는 경우 제 1 수지층 및 제 2 수지층의 두께는 각각 10 내지 500 ㎛일 수 있으며, 필요에 따라 필름 표면에 코로나 방전처리, 다른 수지의 코팅, 라미네이션 및 공압출 등 임의의 표면처리를 할 수 있다.The film thus obtained may be manufactured in an appropriate thickness depending on the use, for example, when manufacturing a single-layer polyester film, the film may have a thickness of 20 to 300 µm, and when manufacturing a multilayer polyester film, the first number may be used. The thickness of the ground layer and the second resin layer may be 10 to 500 μm, respectively, and the surface of the film may be subjected to any surface treatment such as corona discharge treatment, coating of other resins, lamination, and coextrusion.
이하 실시예에 의하여 본 발명을 더욱 상세히 설명한다. 단 하기의 실시예는 본 발명의 예시일 뿐 본 발명이 이에 한정되는 것은 아니다.The present invention will be described in more detail with reference to the following examples. However, the following examples are only examples of the present invention and the present invention is not limited thereto.
실시예Example
본 발명의 실시예 및 비교예에서 제조된 필름 및 공정상의 각종 성능 평가는 다음의 측정방법으로 실시하였다Various performance evaluation on the film and process produced in Examples and Comparative Examples of the present invention was carried out by the following measuring method.
(1) 유연성(1) flexibility
ASTM D2240에 의하여 쇼어(shore) 경도계를 이용하여 쇼어 D 경도를 측정함으로써 유연성을 결정하였다.Flexibility was determined by measuring Shore D hardness using a Shore Durometer by ASTM D2240.
(2) 가공성(2) processability
티-다이 싱글 압출기(CY-SE35, 창영기계)를 이용하여 시트를 압출하여 시트의 외관 상태 및 용융정도 등을 육안으로 판단하여 A, B, C 등급으로 분류하였다.Sheets were extruded using a T-die single extruder (CY-SE35, Changyoung Machinery) and classified into A, B, and C grades by visually determining the appearance and melting of sheets.
A : 외관 및 용융 상태 우수A: Excellent appearance and melt state
B : 일부 외관에서 시트 꼬임 현상, 스트래치 발생 또는 용융시 일부 탄화물 등의 불량 발생.B: In some appearances, defects such as sheet twisting, scratching or some carbides during melting occur.
C : 시트로 가공하기 어려움.C: Difficult to process into sheet.
실시예 1Example 1
주반복 단위의 70 중량%가 에틸렌테레프탈레이트 및 30 중량%가 사이클로헥산 디메탄올로 이루어진 극한점도 0.78 dl/g의 무정형 공중합 폴리에틸렌테레프탈레이트 수지(S2008, SK 케미칼(SK Chemical)) 100 중량부에 대해 에폭시계 가소제로서 에폭시화 아마씨유(ADEKA사) 7 중량부 및 부틸아크릴레이트 메틸메타아크릴레이트 공중합체(IM808A, LG화학) 13 중량부를 사용하였다.To 100 parts by weight of an amorphous copolymerized polyethylene terephthalate resin (S2008, SK Chemical) having an intrinsic viscosity of 0.78 dl / g consisting of 70% by weight of the main repeat unit consisting of ethylene terephthalate and 30% by weight of cyclohexane dimethanol As the epoxy plasticizer, 7 parts by weight of epoxidized flaxseed oil (ADEKA) and 13 parts by weight of butyl acrylate methylmethacrylate copolymer (IM808A, LG Chemical) were used.
무정형 공중합 폴리에틸렌테레프탈레이트 수지 칩을 분쇄하고, 부틸아크릴레이트 메틸메트아크릴레이트 공중합체에 에폭시화 아마씨유를 흡수시킨 후, 이들을 고속 혼합기에 넣고 균일하게 혼합한 다음, 이 혼합물을 압출함으로써 컴파운드 칩을 제조하였다.After grinding the amorphous copolymerized polyethylene terephthalate resin chip, absorbing the epoxidized flaxseed oil in the butyl acrylate methyl methacrylate copolymer, putting them in a high speed mixer, mixing them uniformly, and extruding the mixture to prepare a compound chip. It was.
상기 컴파운드 칩을 폴리에스테르 필름 제조 방법에 의하여 건조, 용융, 압출하여 시트를 성형한 후 각각 3 배씩 종연신 및 횡연신하고, 140 ℃의 온도에서 열고정하여 두께가 100 ㎛인 폴리에스테르 필름을 얻었다.The compound chips were dried, melted, and extruded by a polyester film manufacturing method to form sheets, and then longitudinally stretched and transversely stretched three times, and heat-set at a temperature of 140 ° C. to obtain a polyester film having a thickness of 100 μm.
실시예 2Example 2
에폭시계 가소제로서 에폭시화 아마씨유(ADEKA사) 10 중량부 및 부틸아크릴레이트 메틸메트아크릴레이트 공중합체(IM808A, LG화학) 20 중량부를 첨가하는 것을 제외하고 실시예 1과 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1, except that 10 parts by weight of epoxidized flaxseed oil (ADEKA) and 20 parts by weight of butyl acrylate methylmethacrylate copolymer (IM808A, LG Chemical) were added as an epoxy plasticizer. .
실시예 3Example 3
에폭시화 아마씨유(ADEKA사) 대신 폴리에스테르계 가소제(P2600, 송원산업) 7 중량부를 첨가하는 것을 제외하고 실시예 1과 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1, except that 7 parts by weight of a polyester plasticizer (P2600, Songwon Industry) was added instead of epoxidized linseed oil (ADEKA).
실시예 4Example 4
에폭시계 가소제 없이 부틸아크릴레이트 메틸메트아크릴레이트 공중합체(IM808A, LG화학)를 30 중량부로 사용한 것을 제외하고는 실시예 1과 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1, except that 30 parts by weight of a butyl acrylate methylmethacrylate copolymer (IM808A, LG Chemical) was used without an epoxy plasticizer.
비교예 1Comparative Example 1
가소제 또는 부틸아크릴레이트 메틸메트아크릴레이트 공중합체를 사용하지 않은 것을 제외하고는 실시예 1과 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1, except that no plasticizer or butylacrylate methylmethacrylate copolymer was used.
비교예 2Comparative Example 2
에폭시계 가소제로서 에폭시화 아마씨유(ADEKA사) 70 중량부 및 부틸아크릴레이트 메틸메트아크릴레이트 공중합체(IM808A, LG화학) 140 중량부를 첨가하는 것을 제외하고 실시예 1과 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1, except that 70 parts by weight of epoxidized flaxseed oil (ADEKA) and 140 parts by weight of butyl acrylate methylmethacrylate copolymer (IM808A, LG Chemical) were added as an epoxy plasticizer. .
비교예Comparative example 3 3
에폭시계 가소제로서 에폭시화 아마씨유(ADEKA사) 0.1 중량부 및 부틸아크릴레이트 메틸메트아크릴레이트 공중합체(IM808A, LG화학) 0.3 중량부를 첨가하는 것을 제외하고 실시예 1과 동일한 방법으로 필름을 제조하였다.A film was prepared in the same manner as in Example 1, except that 0.1 part by weight of epoxidized flaxseed oil (ADEKA) and 0.3 part by weight of butyl acrylate methylmethacrylate copolymer (IM808A, LG Chemical) were added as an epoxy plasticizer. .
상기 실시예 및 비교예에서 제작한 필름에 대하여 유연성 및 가공성을 측정한 결과를 하기 표 1 나타내었다.Table 1 shows the results of measuring flexibility and processability of the films produced in Examples and Comparative Examples.
① 에폭시계 가소제① epoxy plasticizer
② 폴리에스테르계 가소제② Polyester plasticizer
③ 부틸아크릴레이트 메틸메트아크릴레이트 공중합체③ Butyl acrylate methyl methacrylate copolymer
상기 표 1의 결과로부터, 본 발명에 따른 폴리에스테르 필름은 우수한 가공성 및 유연성을 동시에 만족시킬 수 있음을 확인할 수 있다. 이에 반해, 비교예에 따른 폴리에스테르 필름의 경우, 가소제 또는 부틸아크릴레이트 메틸메트아크릴레이트 공중합체를 미량 사용하거나 사용하지 않은 경우 유연성이 현저히 떨어지며, 과량 사용하는 경우 유연성은 좋을 수 있으나, 가공성이 현저히 떨어짐을 알 수 있다.From the results of Table 1, it can be seen that the polyester film according to the present invention can satisfy the excellent workability and flexibility at the same time. On the contrary, in the case of the polyester film according to the comparative example, the flexibility of the plasticizer or the butyl acrylate methylmethacrylate copolymer is low or not in a small amount, and in the case of the excessive use, the flexibility may be good, but the workability is remarkably It can be seen that the fall.
상기에서 살펴본 바와 같이, 본 발명의 폴리에스테르 필름은 가공성과 함께 유연성이 우수하여, 가정용 또는 상업용 실내장식, 특히 인테리어, 데코레이션, 막 성형, 인쇄재료, 라벨 등에 유용하게 이용될 수 있다.As described above, the polyester film of the present invention is excellent in flexibility with processability, it can be usefully used for home or commercial interior decoration, especially interior, decoration, film forming, printing materials, labels and the like.
Claims (8)
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| KR1020070135339A KR100956333B1 (en) | 2007-12-21 | 2007-12-21 | Polyester film having good flexibilty |
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| KR1020070135339A KR100956333B1 (en) | 2007-12-21 | 2007-12-21 | Polyester film having good flexibilty |
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| KR102288853B1 (en) | 2018-09-05 | 2021-08-12 | 주식회사 엘지화학 | Thermoplastic resin composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60219256A (en) | 1984-04-16 | 1985-11-01 | Mitsubishi Chem Ind Ltd | Polyester resin composition |
| JPS63110246A (en) | 1986-10-27 | 1988-05-14 | Asahi Chem Ind Co Ltd | Polyester resin composition |
| KR20070100164A (en) * | 2006-04-06 | 2007-10-10 | 미쓰비시 폴리에스테르 필름 지엠비에치 | Hydrolysis-resistant polyester film with hydrolysis stabilizer |
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2007
- 2007-12-21 KR KR1020070135339A patent/KR100956333B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60219256A (en) | 1984-04-16 | 1985-11-01 | Mitsubishi Chem Ind Ltd | Polyester resin composition |
| JPS63110246A (en) | 1986-10-27 | 1988-05-14 | Asahi Chem Ind Co Ltd | Polyester resin composition |
| KR20070100164A (en) * | 2006-04-06 | 2007-10-10 | 미쓰비시 폴리에스테르 필름 지엠비에치 | Hydrolysis-resistant polyester film with hydrolysis stabilizer |
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