KR101117820B1 - Polyethylen terephthalate having glue layer and Its methode - Google Patents
Polyethylen terephthalate having glue layer and Its methode Download PDFInfo
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- KR101117820B1 KR101117820B1 KR1020090101066A KR20090101066A KR101117820B1 KR 101117820 B1 KR101117820 B1 KR 101117820B1 KR 1020090101066 A KR1020090101066 A KR 1020090101066A KR 20090101066 A KR20090101066 A KR 20090101066A KR 101117820 B1 KR101117820 B1 KR 101117820B1
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- pet
- resin
- pet resin
- adhesive layer
- polycarbonate
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- -1 Polyethylen terephthalate Polymers 0.000 title abstract description 8
- 239000003292 glue Substances 0.000 title 1
- 229920005989 resin Polymers 0.000 claims abstract description 60
- 239000011347 resin Substances 0.000 claims abstract description 60
- 239000012790 adhesive layer Substances 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 13
- 239000004417 polycarbonate Substances 0.000 claims abstract description 13
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims abstract description 3
- 239000008188 pellet Substances 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 61
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 61
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 8
- 239000004917 carbon fiber Substances 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 5
- 230000006750 UV protection Effects 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000003973 paint Substances 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 2
- 150000007513 acids Chemical class 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 abstract description 2
- 238000004040 coloring Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 229920005749 polyurethane resin Polymers 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 235000012438 extruded product Nutrition 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 2
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920008790 Amorphous Polyethylene terephthalate Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/18—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2469/00—Use of PC, i.e. polycarbonates or derivatives thereof as filler
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
본 발명은 폴리에틸렌 테레프탈레이트(Polyethylen terephthalate: PET, 이하 PET(피이티)수지라 함.)의 강도와 점도를 높여 성형가공을 더욱 좋게 하며, 여기에 탄소섬유, 유리섬유 등의 접착이 가능하고 도료(Paints)의 착색이 가능한 접착층을 형성하여 각종 이형압출제품으로 생산할 수 있게 한 접착층이 형성된 피이티수지와 그 제조방법에 관한 것인 바, The present invention improves the molding process by increasing the strength and viscosity of polyethylene terephthalate (Polyethylen terephthalate: PET, hereinafter referred to as PET (PET) resin), and enables adhesion of carbon fiber, glass fiber, etc. (2) relates to a PTI resin having an adhesive layer formed thereon, wherein the adhesive layer capable of coloring of (Paints) is formed to be produced by various release extrusion products, and a method of manufacturing the same
본 발명은 PET수지(70~85중량%)에 금속과 같이 단단하고 산과 열에 잘 견디는 성질을 가지고 있어 기계부품, 가정용품 등으로 널리 사용되는 폴리카보네이트(PC)(10~20중량%)와 유리섬유(Pellet)(5~10중량%)를 혼합하여 그 위에 PETG를 코팅하여 접착층을 형성함으로써 탄소섬유, 유리섬유 등의 접착이 가능하게 한 것에 특징이 있다. The present invention is a polycarbonate (PC) (10-20% by weight) and glass, which is widely used for mechanical parts, household goods, etc., as it is hard and resistant to acids and heat, such as metal, in PET resin (70-85% by weight). It is characterized by enabling the adhesion of carbon fibers, glass fibers, etc. by mixing fibers (5 to 10% by weight) and forming a bonding layer by coating PETG thereon.
폴리에틸렌 테레프탈레이트(Polyethylen terephthalate), 폴리카보네이트, PET, PET수지, 자외선 차단, PET수지의 접착제, PET수지의 자외선 차단 코팅층, 접착층이 형성된 PET수지, PET수지의 접착층 형성방법. Polyethylene terephthalate (Polyethylen terephthalate), polycarbonate, PET, PET resin, UV protection, adhesive of PET resin, UV protection coating layer of PET resin, PET resin with adhesive layer, PET resin adhesive layer forming method.
Description
본 발명은 폴리에틸렌 테레프탈레이트(Polyethylen terephthalate: PET, 이하 PET(피이티)수지라 함.)의 강도와 점도를 높여 성형가공을 더욱 좋게 하며, 여기에 탄소섬유, 유리섬유 등의 접착이 가능하고 도료(Paints)의 착색이 가능한 접착층을 형성하여 각종 이형압출제품으로 생산할 수 있게 한 접착층이 형성된 피이티수지와 그 제조방법에 관한 것이다. The present invention improves the molding process by increasing the strength and viscosity of polyethylene terephthalate (Polyethylen terephthalate: PET, hereinafter referred to as PET (PET) resin), and enables adhesion of carbon fiber, glass fiber, etc. The present invention relates to a PTI resin having an adhesive layer formed by forming an adhesive layer capable of coloring (Paints) to be produced by various release extrusion products, and a manufacturing method thereof.
주지된 바와 같이 PET수지는 성형가공성과 재생성(RECYCLE)이 우수하고 밀도가 조밀하여 강도가 뛰어나며 가격이 저렴한 등의 장점을 가지고 있어 파이프, 시트, 새시(Sash) 등의 이형압출제품으로 생산할 경우 많은 이익을 기대할 수 있는 반면에 타물질과 접착되지 않은 성질을 가지고 있고 PET수지에 타물질을 접착시킬 수 있는 접착제도 개발되어 있지 않아 강도 향상 등을 목적으로 탄소섬유, 유리 섬유 등을 접착할 수 없어 다양한 용도와 목적의 여러 이형압출제품으로 생산하여 사용할 수 없고 또한 자외선에 취약하여 자외선에 의해 고분자 조직이 파괴됨으로써 내후성이 저조한 문제점을 가지고 있다. As is well known, PET resin has the advantages of excellent molding processability and recyclability, high density, high strength, and low price, so that it can be used to produce extruded products such as pipe, sheet, and sash. On the other hand, it is possible to expect profits, but it has properties that are not bonded to other materials, and no adhesive has been developed to bond other materials to PET resin. It can not be produced and used in a variety of release extrusion products for a variety of uses and purposes, and also has a problem of poor weather resistance due to the destruction of the polymer tissue by ultraviolet light because it is vulnerable to ultraviolet light.
즉, PET수지는 타물질과 접착되지 않는 성질과 함께 강도가 약하고 자외선에 취약하여 내후성이 저조한 등의 단점으로 각종 이형압출제품으로 생산하기 곤란하므로 내후성을 높이고 탄소섬유, 유리섬유 등을 접착시켜 철보다 가벼우면서도 충격에 강하고 인장력도 우수한 장점 등을 발휘케 할 경우 각종 산업분야와 건축분야에서 유용하게 사용할 수 있는 소재이다. In other words, PET resin has the property of not being adhered to other materials and has weak strength and weakness of UV rays, so it is difficult to produce various extruded products due to its poor weather resistance. Therefore, it is difficult to produce various extrusion products. It is a material that can be usefully used in various industrial fields and construction fields when it is lighter, more resistant to impact and excellent in tensile strength.
그리고 피이트 수지에 탄소섬유, 유리섬유를 접착할 수 있도록 하기 위한 하나의 방법으로 자외선과 열에 강하고 타물질과의 접착성이 우수한 폴리우레탄 수지를 PET수지 위에 직접 코팅 접착하는 방법도 고려해 볼 수 있는 데, PET수지 위에 폴리우레탄 수지를 단독 코팅할 경우, PET수지 위에 코팅된 폴리우레탄 수지는 접착이 이루어지지 않고 쉽게 박리되어 흡사 뱀이 허물을 벗듯이 분리되며, 또 PET수지 위에 디이소시아네이트와 디올과 반응에 의해 제조된 폴리우레탄 수지나 나일론 또는 아클리 수지 등의 수지를 단독으로 코팅하는 경우 역시 그 어느 것도 기재수지인 PET수지와 접착이 잘 이루어지지 않고 쉽게 박리되어 벗겨지게 되므로 원하는 상기 목적을 달성할 수 없어 새로운 접착층에 대한 개발이 요구되었다. In addition, as a way to bond carbon fiber and glass fiber to the FT resin, a method of directly coating and bonding a polyurethane resin that is strong to ultraviolet rays and heat and has excellent adhesion to other materials can be considered. However, when the polyurethane resin is coated on the PET resin alone, the polyurethane resin coated on the PET resin is easily peeled off without being adhered, and the snake is separated like a snake, and the diisocyanate and diol are separated on the PET resin. In the case of coating a resin such as a polyurethane resin or nylon or an acrylic resin produced by the reaction alone, none of them are easily adhered to the PET resin, which is a base resin, and are easily peeled off and peeled off. The development of a new adhesive layer was required.
한편, 공개특허공보 제10-2003-75478호 등에서 시트를 제조하고 연신하여 제조한 필름에 폴리우레탄이나 아크릴 또는 나일론 등의 수지를 단독으로 용해한 코팅액을 도포하고 이어서 매트 등을 적층시킨 기술이 개시되어 있지만, 상기 코팅은 용액코팅으로서 용매가 증발하기 전에 타 매체를 접착하여야 하므로 장기간 접착층을 단독으로 유지할 수 없어 최종 소비자(End-User)가 사용할 수 있는 상태의 적층체를 제공할 수 없었다. On the other hand, in the Patent Publication No. 10-2003-75478, etc., a technique in which a coating liquid in which a resin such as polyurethane, acrylic or nylon is dissolved alone is applied to a film prepared by stretching a sheet, and then a mat or the like is laminated. However, the coating is a solution coating, and the other media must be adhered before the solvent evaporates, so that the adhesive layer cannot be maintained alone for a long time, and thus the laminate cannot be provided to the end-user.
더구나 상기 문헌에서 제시하고 있는 용액코팅을 하는 경우에는 용매가 증발된 경우에 기재인 PET수지와 접착층 간의 상용성이 좋지 않아 투명도가 감소하고 부분적으로 접착층이 벗겨지는 등의 문제가 생겨 좋은 제품을 생산할 수 없는 문제점이 있었다. 또 그 적층체는 고도의 기계적 강도가 높은 분야에 사용할 수 없고 단지 투명도를 유지하는 것보다는 소광효과를 제공하는 용도에만 국한되는 단점이 있었다. In addition, the solution coating proposed in the above document does not have good compatibility between the PET resin and the adhesive layer when the solvent is evaporated, resulting in a problem such as reduced transparency and partial peeling of the adhesive layer. There was a problem that could not be. In addition, the laminate has a disadvantage in that it cannot be used in a field of high mechanical strength and is limited to only a use of providing a matting effect rather than maintaining transparency.
상기한 연구 과정을 거쳐 본 발명의 발명자는 PET수지의 융점(Tm)이 250 내지 260℃의 것에 반하여 연화점이 100℃이고 융점(Tm)이 150 내지 160℃인 저융점 PET수지와 폴리우레탄수지를 혼합하여 PET수지를 서로 결속하는 바인더 역할을 하도록 접착조성물을 조성하고 이를 PET수지에 접착층을 코팅, 형성함으로써 자외선을 차단하고 탄소섬유, 유리섬유 등의 접착이 가능한 접착층을 가지는 PET수지와 그 제조방법에 대하여 발명한 바 있다.(발명특허 제10-0859288호) Through the above research process, the inventor of the present invention has a low melting point PET resin and a polyurethane resin having a softening point of 100 ° C and a melting point of 150 to 160 ° C, while a melting point (Tm) of the PET resin is 250 to 260 ° C. PET resin having an adhesive layer capable of adhering carbon fibers, glass fibers, etc. by blocking the ultraviolet rays by forming an adhesive composition to form a binder to bind PET resins to each other by mixing and coating and forming an adhesive layer on the PET resin. It has been invented for (Invention Patent No. 10-0859288).
또 본 발명인은 기재인 PET성형체, 시트 또는 필름과 접착이 유지되어 계면이 벗겨지는 등의 접착성의 열세를 제거하고, 그 접착층에 의해 탄소섬유, 유리섬유를 비롯한 다양한 무기섬유층이나 다른 수지와의 접착성이 향상되는 새로운 PET적층체 및 이의 제조방법을 제공할 수 있으며, 부수적으로 접착층에 의해 자외선 차단효과까지 가지는 새로운 접착층을 가지는 PET적층체를 발명하였다.(발명특허 제10-089761호) In addition, the present inventor removes adhesive deterioration such as peeling of an interface by maintaining adhesion with a PET molded article, a sheet or a film as a base material, and adhesion to various inorganic fiber layers including carbon fibers and glass fibers or other resins by the adhesive layer. It is possible to provide a new PET laminate having improved properties and a method for manufacturing the same, and additionally invented a PET laminate having a new adhesive layer having a UV-blocking effect by the adhesive layer. (Invention Patent No. 10-089761)
또 본 발명인은 PET수지에 적층된 접착층으로 구성되고, 상기 접착층은 상기 PET수지 보다 낮은 융점을 가지고 융점이 50 내지 145℃인 저융점 PET수지 및 에스 테르계 폴리우레탄수지의 혼합성분으로 구성되며 PET수지와 저융점 PET수지 및 에스테르계 폴리우레탄수지의 혼합성분으로 구성된 접착층은 공압출에 의해 적층되어 제조되는 것을 특징으로 하는 향상된 접착층을 가지는 PET적층체를 발명한 바 있다.(발명특허 제10-0897631호) In addition, the present inventors are composed of an adhesive layer laminated on a PET resin, the adhesive layer is composed of a mixed component of a low melting point PET resin and an ester-based polyurethane resin having a melting point of 50 to 145 ℃ lower than the PET resin and PET The adhesive layer composed of a mixed component of a resin, a low melting point PET resin and an ester-based polyurethane resin has been invented a PET laminate having an improved adhesive layer, which is produced by lamination by co-extrusion. 0897631)
본 발명은 상기한 본 발명인의 앞선 발명특허에 더하여 새로운 방법으로 우수한 기계적 강도와 투명성은 물론 내구성이 뛰어난 반면 자외선에 취약한 PET수지의 단점을 보완하여 PET수지를 이용한 제품의 생산이 가능하도록 PET수지 위에 접착층을 형성하고자 하는 것이다.The present invention is in addition to the above-described inventors of the present invention in a new method with excellent mechanical strength and transparency as well as excellent durability, while complementing the disadvantages of the PET resin vulnerable to UV light on the PET resin to enable the production of products using PET resin It is to form an adhesive layer.
즉, 본 발명은 투명하고 단단하여 내충격성이 가장 우수함은 물론 내열성, 전기적 특성이 좋으며 성형품의 치수안정성 역시 뛰어난 폴리카보네이트와 화학적 내구성과 함께 인장강도 등이 우수한 유리섬유를 PET수지에 혼합하여 PET수지의 강도 및 가공성을 높이고 여기에 PETG로서 자외선차단과 더불어 접착성을 제공함으로써 다양한 물질의 접착이 가능하고 도색 등도 가능하게 하여 다양한 압출제품으로 생산, 사용할 수 있게 하고자 한다.That is, the present invention is transparent and hard, the most excellent impact resistance, heat resistance, electrical properties and good dimensional stability of the molded article polycarbonate and chemical durability and excellent tensile strength with PET fiber mixed with PET resin PET resin By increasing the strength and workability of the PETG and providing adhesiveness as well as UV protection as PETG, it is possible to bond and paint various materials and to produce and use various extruded products.
상기 과제를 해결하기 위한 본 발명은;The present invention for solving the above problems;
[청구항 1]에 기재된 발명에 따르면; PET수지(70~85중량%)에 폴리카보네이트(PC)(10~20중량%), 펠렛(Pellet)상태의유리섬유(5~10중량%)를 용융혼련하여 260~280℃에서 압출하고, 상기 PET수지의 압출과정에서 PETG를 260~280℃에서 공압출하여 공압출에 의해 상기 PET수지 위에 PETG를 0.3~0.5mm의 두께로 코팅하여 접착층을 형성하는 것을 특징으로 한다.According to the invention described in [claim 1]; Polycarbonate (PC) (10-20 wt%) and pellet glass fiber (5-10 wt%) are melt-kneaded in PET resin (70-85 wt%) and extruded at 260-280 ° C. In the extrusion process of the PET resin, the PETG is coextruded at 260 ~ 280 ℃ by co-extrusion PETG coated on the PET resin to a thickness of 0.3 ~ 0.5mm to form an adhesive layer.
[청구항 2]에 기재된 발명에 따르면; 제1항에 기재된 방법으로 제조된 접착층이 형성된 피이티 수지를 특징으로 한다. According to the invention described in [claim 2]; The PTI resin in which the adhesive layer manufactured by the method of Claim 1 was formed is characterized.
본 발명은 PET수지에 내열성, 내충격성 등이 우수하고 자외선차단은 물론 접착성이 뛰어난 폴리카보네이트를 코팅형성하여 접착층을 구성시킴으로써 자외선 차단으로 PET수지로서 내후성이 뛰어난 제품생산이 가능할 뿐만 아니라 탄소섬유, 유리섬유 등의 접착이 가능하여 PET수지로서 여러 용도와 목적의 이형압출제품을 생산, 공급할 수 있고, 도료의 접착 역시 가능하게 되어 각종의 다양한 제품개발이 용이한 등의 여러 이익을 기대할 수 있다.The present invention is excellent in heat resistance, impact resistance, etc. to the PET resin, and by forming a coating layer by forming a polycarbonate coating with excellent UV protection as well as excellent adhesion to the ultraviolet rays as a PET resin as well as production of excellent weather resistance as a PET resin as well as carbon fiber, As it is possible to bond with glass fiber, it is possible to produce and supply release extrusion products for various uses and purposes as PET resin, and also to be able to bond paints, so that various benefits such as easy development of various products can be expected.
본 발명은 PET수지(70~85중량%)에 금속과 같이 단단하고 산과 열에 잘 견디는 성질을 가지고 있어 기계부품, 가정용품 등으로 널리 사용되는 폴리카보네이트(PC)(10~20중량%)와 유리섬유(Pellet)(5~10중량%)를 혼합하여 그 위에 PETG[APET에 CHDM(1,4-CYCLOHEXANEDIMETHANOL AGLYCOL)을 Alloy한 것]를 코팅하여 접착층을 형성함으로써 탄소섬유, 유리섬유 등의 접착이 가능하게 한 것에 특징이 있다. The present invention is a polycarbonate (PC) (10-20% by weight) and glass, which is widely used for mechanical parts, household goods, etc., as it is hard and resistant to acids and heat, such as metal, in PET resin (70-85% by weight). A mixture of pellets (5 to 10% by weight) is coated on PETG [alloyed with CHDM (1,4-CYCLOHEXANEDIMETHANOL AGLYCOL) on the APET] to form an adhesive layer, thereby adhering adhesion of carbon fiber, glass fiber, etc. It is characterized by what has been made possible.
이하 실시예를 통해 본 발명에 대하여 구체적으로 살펴보면 다음과 같다. Looking in detail with respect to the present invention through the following examples.
실시예Example
PET수지(70~85중량%)에 폴리카보네이트(PC)(10~20중량%), 유리섬유(Pellet)(5~10중량%)를 용융혼련하여 260~280℃에서 압출하고 또한 PETG를 역시 260~280℃에서 공압출하여 공압출에 의해 상기 PET수지 위에 PETG를 코팅하여 접착층을 형성함으로써 PET수지체를 제조한다. Polycarbonate (PC) (10-20% by weight) and glass fiber (Pellet) (5-10% by weight) are melt-kneaded in PET resin (70-85% by weight) and extruded at 260-280 ° C. Co-extrusion at 260 ~ 280 ℃ to produce a PET resin by coating the PETG on the PET resin by co-extrusion to form an adhesive layer.
상기 PET수지에 혼합되는 폴리카보네이트 및 펠렛(Pellet)상태의 유리섬유는 상기한 혼합비로 혼합하여 압출기에 투입하여 압출하는 것으로, 상기 폴리카보네이트 및 유리섬유는 PET수지의 강도와 점도를 높여서 강도 향상에 따른 내구성 증대와 함께 점도 향상으로 성형가공성을 높인다. The polycarbonate and the glass fiber of the pellet (Pellet) state to be mixed in the PET resin is mixed in the above-mentioned mixing ratio and extruded into the extruder, the polycarbonate and glass fiber to improve the strength by increasing the strength and viscosity of the PET resin Increasing the durability and increase the molding processability by improving the viscosity.
상기 폴리카보네이트와 유리섬유가 혼합된 PET수지의 압출과정에서 공압출에 의해 260-280℃에서 압출되어 PET수지 표면에 접착층을 형성하는 PETG는 0.3~0.5mm의 두께로 표면에 코팅하여 접착층을 형성한다. PETG, which is extruded at 260-280 ° C by coextrusion in the extrusion process of the PET resin mixed with the polycarbonate and glass fiber, forms an adhesive layer on the surface with a thickness of 0.3-0.5 mm. do.
상기와 같이 PET수지 표면에 PETG가 코팅되어 형성된 접착층은 뛰어난 접착력을 발휘할 뿐만 아니라 취약한 PET수지의 결점을 보완하여 우수한 내후성을 갖추게 된다. As described above, the adhesive layer formed by coating PETG on the surface of the PET resin not only exhibits excellent adhesion but also has excellent weather resistance by compensating for the weak points of the weak PET resin.
이와 같은 PET수지에 폴리카보네이트 및 유리섬유를 혼합 조성하여 압출성형하고 그 위에 PETG로 접착층을 형성하면 폴리카보네이트와 유리섬유의 혼합으로 강도가 우수하고 가공성이 뛰어나면서도 다른 물질과의 접착성도 우수한 제품을 얻을 수 있다. When the polycarbonate and glass fiber are mixed and extruded in PET resin, and the adhesive layer is formed on the PETG, the product is excellent in strength, processability and adhesion to other materials by mixing polycarbonate and glass fiber. You can get it.
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