The present invention relates to a thermoplastic elastomer composition, including: 24.5-26.0 wt% of ethylene propylene diene monomer (EPDM) rubber; 42.0-45.0 wt% of polypropylene (PP); 24.0-26.0 wt% of paraffin oil; 0.3-0.4 wt% of peroxide cross-linking agents; 0.1-0.2 wt% of antioxidant; and 5.0-6.0 wt% of inorganic fillers. The thermoplastic elastomer composition is allowed to improve bellows bowing of a gear box caused by thermal history after blow molding and accordingly minimizes creation of noise caused by modification when driving steering systems while securing rigidity through increase of cross-linking level, thereby having a good long-term heat resistance.
본 발명은 에틸렌 프로필렌 디엔 고무(EPDM) 24.5 내지 26.0중량%; 폴리프로필렌(PP) 42.0 내지 45.0중량%; 파라핀 오일 24.0 내지 26.0중량%; 퍼옥사이드 가교제 0.3 내지 0.4중량%; 산화방지제 0.1 내지 0.2중량%; 및 무기필러 5.0 내지 6.0중량%;를 포함하는 열가소성 엘라스토머 조성물에 관한 것으로, 블로우 성형 후 열이력에 의한 기어박스 벨로우즈 휨 현상이 개선되어 조향장치 구동시 변형에 의한 Noise 발생이 최소화되고 가교도 증가를 통해 강성이 확보되며 장기 내열성이 우수한 효과가 있다.
THERMOPLASTIC ELASTOMER COMPOSITION
열가소성 엘라스토머 조성물
04.06.2015
Patent
Elektronische Ressource
Koreanisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B62D MOTOR VEHICLES , Motorfahrzeuge / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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