Abstract:
(A)폴리올레핀계 수지 60∼85 중량%; (B)열가소성 탄성체 5∼15 중량%; 및 (C)친환경 유기 필러 10∼25 중량%;로 이루어진 기본조성 100 중량부를 기준으로, (D)상용화제 0.5∼2 중량부를 포함하는 폴리올레핀계 수지 조성물과 이를 이용하여 제조되는 성형품이 개시된다. 본 발명에 따르면, 내스크래치성, 내충격성 및 강성이 우수할 뿐 아니라, 휘발성 유기 조성물 및 이산화탄소 발생이 저감되어 친환경적이고, 저광택성이 우수하고 경량화되어 자동차 내·외장재에 적합한 충격강도 특성이 보완된 저광택 폴리올레핀계 수지 조성물 및 이를 이용하여 제조되는 성형품을 제공할 수 있다.
Abstract:
PURPOSE: A polyolefin-based resin composition is provided to have excellent surface scratch resistance, impact resistance, rigidity, and dimensional stability, thereby using as interior or exterior of a vehicle. CONSTITUTION: A polyolefin-based resin composition comprises: 40-80 weight% of an ultrahigh crystalline polypropylene resin of which isotactic index is 99.5 or higher; 10-20 weight% of polypropylene of which branch index is 7 or higher; 10-20 weight% of thermoplastic elastomer rubber; 1-30 weight% or inorganic filler; 2-6 weight% of a fluorine-acryl copolymer amide-based polymer compound. The ultrahigh crystalline polypropylene resin comprises a propylene homopolymer, or copolymer of propylene and 12mol% or less of ethylene or a C4-10 olefin-based monomer.
Abstract:
PURPOSE: A micro pellet type thermoplastic polyurethane composition for powder slush molding process and a manufacturing method thereof are provided to enhance mechanical property, light-proof, heat resistance, anti-hydrolysis property, and releasability. CONSTITUTION: A micro pellet type thermoplastic polyurethane composition for powder slush molding process comprises 5-10 weight% of ester-based polyol, 5-10 weight% of ether based polyol, 30-70 weight% of polycarbonate diol, 10-50 weight% of isocyanate, 5-30 weight% of chain extender, and 0.1-5 weight% of light-resistant stabilizer. The ester based polyol is more than one kind which is selected from polycaprolactone polyol, butylene adipate, ethylene adipate, and diethylene diadipate. The ether based polyol is polypropylene glycol, polytetramethylene ether glycol, or a mixture thereof.
Abstract:
A polypropylene resin composition is provided to improve melt tension, fluidity and cooling velocity, to prevent the generation of swirl mark in case of injection molding and to enhance the foaming rate and impact resistance of foamed product. A polypropylene resin composition comprises 5-20 wt% of a polypropylene master batch which comprises a propylene homopolymer, a propylene-ethylene copolymer or their mixture; 35-60 wt% of a high crystalline polypropylene resin having a melt index of 60-100 g/10 min (230 deg.C) and an isotacticity of 99-100; 5-15 wt% of an ethylene-styrene copolymer rubber which contains 20-50 wt% of styrene and has a polydispersity index of 8-12 and a melt index of 10-30 g/10 min (230 deg.C); 5-15 wt% of an ethylene-alpha-olefin copolymer rubber; and an inorganic filler.
Abstract:
본 발명은 자동차 범퍼용 폴리프로필렌 수지 조성물에 관한 것으로서, 보다 상세하게는 고결정성 폴리프로필렌 수지, 반응형 폴리프로필렌 수지, 스티렌-에틸렌-부텐-스티렌 공중합체 고무, 디스프로포셔네이티드 로진 및 무기충진제를 적절히 배합함으로써, 우수한 강성, 저온충격강도 및 치수안정성을 보유하여 극한의 기후에서도 사용이 가능하고 경량화가 가능한 자동차 범퍼용 폴리프로필렌 수지 조성물에 관한 것이다. 반응형 폴리프로필렌 수지, 스티렌-에틸렌-부텐-스티렌 공중합체, 디스프로포셔네이티드 로진, 저온충격강도, 치수안정성