KR100283427B1 - The manufacturing method for thermo plastic fiber reinforced plastic used for reflector of head lamp in a car - Google Patents
The manufacturing method for thermo plastic fiber reinforced plastic used for reflector of head lamp in a car Download PDFInfo
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- KR100283427B1 KR100283427B1 KR1019990004010A KR19990004010A KR100283427B1 KR 100283427 B1 KR100283427 B1 KR 100283427B1 KR 1019990004010 A KR1019990004010 A KR 1019990004010A KR 19990004010 A KR19990004010 A KR 19990004010A KR 100283427 B1 KR100283427 B1 KR 100283427B1
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 5
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 5
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title 1
- 239000011151 fibre-reinforced plastic Substances 0.000 title 1
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 10
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 10
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004697 Polyetherimide Substances 0.000 claims abstract description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 5
- -1 polybutylene terephthalate Polymers 0.000 claims abstract description 5
- 229920001707 polybutylene terephthalate Polymers 0.000 claims abstract description 5
- 229920001601 polyetherimide Polymers 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000012779 reinforcing material Substances 0.000 claims abstract description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 9
- 239000002990 reinforced plastic Substances 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 229920006337 unsaturated polyester resin Polymers 0.000 abstract description 7
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 238000003860 storage Methods 0.000 abstract description 5
- 230000000704 physical effect Effects 0.000 abstract description 4
- 229920003002 synthetic resin Polymers 0.000 abstract description 4
- 239000000057 synthetic resin Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000010169 landfilling Methods 0.000 abstract description 3
- 150000002013 dioxins Chemical class 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000004071 soot Substances 0.000 abstract description 2
- 239000000805 composite resin Substances 0.000 abstract 2
- 239000012778 molding material Substances 0.000 abstract 2
- 239000004413 injection moulding compound Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/04—Polysulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명은 자동차 전조등용 반사경의 성형재를 열가소성경화수지를 주재로 한 복합수지로 제조하는 방법에 관한 것으로 재활용이 가능함을 특징으로 한 것이다.The present invention relates to a method for manufacturing a molding material of a reflector for automobile headlights using a composite resin mainly based on a thermoplastic curing resin, and is characterized by being recyclable.
자동차용 조명등구는 금속에서 합성수지로 대체되어 현재는 불포화폴리에스테르수지에 유리섬유, 증량제, 경화재, 저수축제, 이형제등을 첨가하여 성형하기 용이하도록 콤파운드로 제조한 것으로 이 재료는 자동차용 램프의 반사경 재료로 전 차종에 사용되어 왔다.Automotive lighting fixtures are replaced by metal and synthetic resins, and are made of compound to make it easy to form by adding glass fiber, extender, hardener, low shrinkage agent, and release agent to unsaturated polyester resin. Has been used in all vehicles.
그러나 환경오염 규제가 강화되는 현실에서는 이재료도 환경친화적이고 재활용이 용이한 재료로 변경되어야 하나 지금까지 사용되오온 BMC재료는 재활용이 되지 못하고 소각시 매연과 다이옥신등의 배출 뿐 만 아니라 매립에도 부적당한 재료로 인식되고 있다.However, in an environment where environmental pollution regulations are tightened, this material should be changed to environment-friendly and easy-to-recycled materials, but the BMC materials that have been used so far are not recycled and are not suitable for landfilling as well as the emission of soot and dioxins during incineration. It is recognized as a material.
본 발명은 이러한 종래의 콤파운드 재료인 불포화 폴리에스테르수지를 사용하지 않고 재활용이 가능할 수 있는 복합수지 조성을 발명한 것으로 이를 요약하면 다음과 같다.The present invention has been invented a composite resin composition that can be recycled without using such a conventional compound material unsaturated polyester resin as follows.
폴리페닐렌슬파이드수지를 주재로하고 폴리에테르이미드, 폴리부틸렌 테레프타레이트를 혼합하여 용융한 상태에서 보강재로 유리섬유, 증량재로 탄산칼슘을 혼합하여 사출성형용 콤파운드를 제조함을 특징으로 한 것이다.Mainly made of polyphenylene sulfide resin and mixed with polyetherimide and polybutylene terephthalate in a molten state, glass fiber and reinforcing material are mixed with calcium carbonate to produce injection molding compound. will be.
본 발명의 성형재는 보관이 반영구적이고 물성의 변화가 극히적어 치수안정성이 우수할 뿐 아니라 이형성이 탁월하고 내열성과 표면 평활성도 우수하다.The molding material of the present invention is semi-permanent storage and extremely small changes in physical properties, not only excellent dimensional stability, but also excellent release properties and excellent heat resistance and surface smoothness.
재활용성은 반사도금막과 표면도장 전단계까지는 완전 재활용이 가능하며 종래에 비해 원가가 저렴하고 사출성형도 용이한 이점이 있다.Recyclability can be completely recycled up to the previous stage of the reflective coating film and surface coating, and has the advantages of low cost and easy injection molding compared to the conventional.
Description
본 발명은 자동차 전조등의 반사경을 열가소성수지인 폴리페닐렌슬파이드레진을 주재로한 강화 플라스틱 콤파운드로 제조함을 특징으로 한 재활용성 반사경의 제조방법에 관한 것이다.The present invention relates to a method for producing a recyclable reflector, characterized in that the reflector of an automobile headlamp is made of a reinforced plastic compound based on polyphenylenespyridazine, which is a thermoplastic resin.
자동차 반사경의 재질은 금속재에서 합성수지로 대체되어 현재 불포화 폴리에스테르수지에 유리섬유, 증량재, 저수축제 및 이형제등을 첨가한 성형용 콤파운드를 사출성형법으로 제조하였다.The material of automobile reflector was replaced by synthetic resin from metal material, and molding compound for glass fiber, extender, low shrinkage agent and release agent was added to unsaturated polyester resin by injection molding method.
이재료는 기계적 강도가 높고 전기적 안정성이 우수하며 평활성이 뛰어나 표면도장이 용이하고 성형설계가 자유로운 사출공법이므로 생산수율과 제조공정이 무난하여 전세계의 모든 완성차에 적용되는 수지로 각광을 받는 대표적인 재료이다. 그러나 재활용이 되지 못하는점이 크나큰 결함이며, 폐차등으로 폐기물이 되었을때 산업쓰레기가 되어 매립이나 소각에도 부적합하여 소재로서 어려움이 있을 뿐 만 아니라, 향 후 선진제국의 무역장벽 중 하나인 그린라운드에서 규정한 자원회수법의 제약을 받을 수 있는 소재가 되어 현재의 소재를 대체해야 하는 시기에 놓이게 되었다. 즉, 대부분의 산업소재가 환경오염 및 환경친화적인 재료로 대체되어가는 추세에 지금까지 사용해온 불포화 폴리에스테르수지 복합재료는 재활용이 되지 못하고 소각시 매연과 다이옥신등의 배출 뿐 만 아니라 매립에도 부적당한 재료로 인식되어 장래에는 재활용이 가능하고 공정에 적합한 열가소성경화형수지(FRTP : Fiber Reinforced Themo Plastic)형 반사경의 성형품이 요구되고 있다.This material has high mechanical strength, excellent electrical stability, excellent smoothness, easy surface coating, and free molding design, so it is a representative material that is widely used as a resin that is applied to all finished cars around the world due to the easy production yield and manufacturing process. . However, it is a big defect that it cannot be recycled, and it is not only suitable for landfilling or incineration when it becomes waste due to junk cars, but also as a material. It became a material that could be constrained by a resource recovery law, and it was in a time when it had to replace the current material. In other words, as most industrial materials are replaced by environmental pollution and environmentally friendly materials, the unsaturated polyester resin composite materials used so far cannot be recycled and are not suitable for landfilling as well as the emission of soot and dioxins during incineration. Recognized as a material, in the future, a molded article of a thermoplastic resin-type reflector (FRTP) that is recyclable and suitable for a process is required.
따라서 본 발명은 불포화 폴리에스테르수지를 사용하지 않고 폴리페닐렌 슬파이드(PPS : Poly Phenylene Sulfide)수지에 내열성과 내충격성이 우수한 다른수지를 첨가하여 사출성형과 반사경의 물성에 부합하는 콤파운드를 제조하여 재활용이 가능한 자동차 전조등용 반사경을 성형하고자 한다.Therefore, the present invention is to add a compound having excellent heat resistance and impact resistance to poly phenylene sulfide (PPS) resin without using an unsaturated polyester resin to prepare a compound that conforms to the properties of injection molding and reflector To reflect the recyclable reflector for automobile headlights.
본 발명은 재활용성이 없는 자동차 전조등용 반사경에 사용되는 콤파운드를 재활용이 가능하며 제조공정에 적합하도록 제조하고, 반사경으로서의 물성을 만족하고 전조등구의 요구물성인 내열성을 향상 또는 종래의 내열성에 맞도록 콤파운드를 제조한 것으로, 종래의 이와같은 목적으로 제조한 불포화 폴리에스테르수지는 열경화성이므로 재활용이 불가능 하였다. 또한 여기에 저수축제를 첨가하여 수축율을 저하시키고 광택 및 이형제를 첨가해야 제조공정에 투입할 수 있었으며 물성도 이에따라 심한차이가 있었고, 가장 큰 문제점은 이들 각각의 수치가 함침이 균일하지 못해 장기간 보관이 불가능 하였으며 저장도중 분리현상이 심해 성형공정에 어려움이 많았다. 그러므로 저장창고의 온습도 관리가 필수적임으로 저장이 용이하지 못하여 원가상승의 요인이 되어왔다.The present invention is manufactured to recycle the compound used in the reflector for automotive headlights that are not recyclable and suitable for the manufacturing process, to satisfy the physical properties as a reflector and to improve the heat resistance, which is the required property of the headlight bulb, or to meet the conventional heat resistance The unsaturated polyester resins prepared for this purpose in the related art were thermosetting and thus could not be recycled. In addition, low shrinkage agent was added to reduce shrinkage rate and gloss and release agent could be added to the manufacturing process, and there were severe differences according to the physical properties. The biggest problem was that each of these values was not uniformly impregnated for long-term storage. It was impossible, and there was a lot of difficulty in the molding process due to severe separation during storage. Therefore, it is not easy to store the temperature and humidity of storage warehouses, so it has been a factor of cost increase.
본 발명은 이와같은 종래의자동차 전조등의 반사경을 재활용이 가능하고 수지간의 분리현상이 발생하지 않도록 증량제, 경화제, 유리섬유, 탄소섬유, 케브라섬유등 보강제로 쓰이는 각종 섬유류 및 첨가제중 재활용이 가능한 것을 선별하여 콤파운드를 제조하고 가소성 사출기에서 성형조건을 조정하여 자동차 반사경을 제조하는 콤파운드를 발명한 것이다.The present invention is capable of recycling the reflector of such a conventional automotive headlight, and selects those that can be recycled among various fibers and additives used as reinforcing agents such as extenders, curing agents, glass fibers, carbon fibers, kebra fibers, and the like to prevent separation between resins. To manufacture a compound and to adjust the molding conditions in a plastic injection molding machine to invent a compound for manufacturing a car reflector.
여기에 사용되는 합성수지는 무게비로 폴리페닐렌슬파이드 70∼90%와 폴리에테르이미드 1∼15%, 폴리부틸렌테레프타레이트 1∼15%를 용융상태에서 보강재로 유리섬유 1∼65% 투입하고 증량재로서 탄산칼슘 1∼60%와 소량의 이형제를 혼합 제조하므로서 보관이 영구적이며 물성변화가 극히 적고 이형성이 탁월하고 내열성이 종래의 반사경보다 우수하고 표면의 평활로 도장면의 반사효과와 성형품의 기계적 강도도 우수하다.Synthetic resin used here is 70% to 90% polyphenylenesulfide, 1% to 15% polyetherimide, and 1% to 15% polybutylene terephthalate as a reinforcing material in the molten state, and the amount is increased. As a mixture of 1 to 60% of calcium carbonate and a small amount of release agent, the storage is permanent, the property change is extremely small, the releasability is excellent, the heat resistance is superior to that of the conventional reflector, the surface smoothness, the reflection effect of the painted surface and the mechanical properties of the molded product. The strength is also excellent.
특히 재활용성은 도장 전 단계까지는 100%의 재활용이 가능하며 전체적인 공정에 비해 단순가공 이므로 원가가 저렴한 특징이 있고 사출성형에도 즉시 적용할 수 있다.In particular, recyclability is 100% recyclable up to the pre-painting stage, and is simple compared to the overall process, so it is inexpensive and can be immediately applied to injection molding.
종래의 반사경에 이용한 불포화폴리에스테르수지 복합재료(BMC)는 내열성이 180℃ 이하였지만 본 발명의 콤파운드는 내열성이 250℃ 전후로서 탁월한 내열성을 갖이므로서 재료를 절약할 수 있어 종래에 비해 절반이하로도 내열성에 지장이 없고 성형품의 전기적 특성과 내크립성 및 탄성특성이 우수하다.The unsaturated polyester resin composite material (BMC) used in the conventional reflector has a heat resistance of 180 ° C. or less, but the compound of the present invention has excellent heat resistance at around 250 ° C., so that the material can be saved. In addition, it does not interfere with heat resistance and has excellent electrical properties, creep resistance and elastic properties of the molded article.
종래에는 동일한 열가소성수지끼리 함침할 경우 교반과 혼합이 불가능하여 다각도로 개발이 진행 되었으나 본 발명에서는 수지간의 접촉을 향상시킬 목적으로 실란처리를 미리하여 수지와의 함침을 향상 시켰다.Conventionally, when the same thermoplastic resins are impregnated with each other, it is impossible to stir and mix. However, in the present invention, the silane treatment is performed in advance in order to improve contact between the resins, thereby improving the impregnation with the resins.
즉, 폴리페닐렌슬파이드수지에 실란처리를 하고 폴리에스테르이미드와 폴리부틸렌테레프탈레이트수지도 같은 방법으로 실란2.5중량%를 도포하여 결정성수지를 용융하고 또한 유리섬유나 카본섬유등 보강제 역시 실란1.0중량%를 도포하고 증량제인 탄산칼슘 역시 1.5중량%의 실란을 처리하여 교반기에서 가열압출시켜 펠리트상으로 제조하고, 이를 사출기를 통하여 반사경금형으로 성형한 후 전조등의 반사도금막을 형성하여 반사경으로 이용한다.That is, polyphenylenesulfide resin is treated with silane, and polyesterimide and polybutylene terephthalate resin are also coated with 2.5% by weight of silane in the same manner to melt the crystalline resin, and reinforcing agents such as glass fiber and carbon fiber also have 1.0 weight of silane. % Coated calcium carbonate as an extender is also treated with 1.5% by weight of silane and extruded in a stirrer to form a pellet, which is formed into a reflector mold through an injection machine, and then used as a reflector to form a reflector film of a headlamp.
이 성형품은 재활용성에 적합한 콤파운드이며, 함침 불가능하고 재결정화되는 경우를 피할 수 있으며, 합성수지간에 재분리현상이 일어나지 않고 물성도 20∼30%이상 처리하지 않는것보다 우수한 결과를 얻을 수 있다.This molded product is a compound that is suitable for recyclability. It can not be impregnated and avoids recrystallization, and it is possible to obtain better results than no re-separation phenomenon between synthetic resins and no treatment of 20-30% or more of physical properties.
또한 폴리페닐렌슬파이드수지의 품질에서는 모노머가 중요한데 가교결합원소가 적은 5% 이내의 폴리페닐렌슬파이드수지가 재활용성에 미치는 영향이 크다. 본 발명에서는 2∼3중량%가 가장 효과적이다.In addition, monomers are important in the quality of polyphenylenesulfide resins, but polyphenylenesulfide resins having less than 5% of crosslinking elements have a large influence on the recyclability. In the present invention, 2-3% by weight is most effective.
실시예Example
고체상의 폴리페닐렌슬파이드수지 70∼90중량%에 폴리에테르이미드수지 1∼15중량%, 폴리부틸렌테레프탈레이트수지 1∼15중량%를 실란으로 처리하고 용융하여 보강재로 유리섬유 1∼65중량%와 증량재로 탄산칼슘 1∼60중량%를 실란처리하여 콤파운드를 제조한다.70 to 90% by weight of solid polyphenylenesulfide resin, 1 to 15% by weight of polyetherimide resin, and 1 to 15% by weight of polybutylene terephthalate resin are treated with silane and melted to reinforce 1 to 65% by weight of glass fiber. Compound was prepared by silane treatment with 1 to 60% by weight of calcium carbonate as an extender.
콤파운드 성상 : 펠레트상Compound Appearance: Pellets
비 중 : 1.69이상Specific gravity: 1.69 or more
굴곡강도 : 2.520㎏/㎠Flexural Strength: 2.520㎏ / ㎠
인장강도 : 1,750㎏/㎠Tensile Strength: 1,750㎏ / ㎠
이와같이 된 본발명의 재활용성 반사경의 콤파운드는 펠리트상태로 제조할 수 있어 운반이 쉽고 가사시간(pot life)의 제한이 없고 수지간의 분리현상이 발생하지 않고 고강도, 경량성, 가공성, 내열성이 우수한 재료를 얻을 수 있어 자동차의 전조등, 미등용등 제반 등구의 반사경으로 활용이 가능하게 되었다.The compound of the recyclable reflector of the present invention can be manufactured in a pellet state so that it is easy to transport, there is no restriction on pot life, separation between resins does not occur, and high strength, light weight, processability and heat resistance are excellent. The materials can be obtained and used as reflectors for headlights and taillights of automobiles.
Claims (4)
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| KR1019990004010A KR100283427B1 (en) | 1999-02-05 | 1999-02-05 | The manufacturing method for thermo plastic fiber reinforced plastic used for reflector of head lamp in a car |
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