The present invention relates to a rubber composition for a tire tread of a passenger car with improved rolling and abrasion resistances and, more specifically, to a rubber composition for a tire tread increasing affinity between a rubber composition for a tire and silica to increase the rolling and abrasion resistances by the silica. According to the present invention, an objective of the present invention is to provide a rubber composition in which affinity between a silica filler and a raw rubber material is good such that the rolling and abrasion resistances can be increased and environment is not affected, and a functional group introduced in rubber does not have excessively strong polarity such that processability can be secured. Moreover, dispersibility and compatibility of silica among rubber molecules can be maximized to reduce the hysteresis of a tire, thereby simultaneously increasing mileage and an abrasion resistance. According to the present invention, the rubber composition comprises a polymer compound including tertiary amine.
본 발명은 구름 저항 및 마모 성능이 개선된 승용차 타이어 트레드용 고무 조성물에 관한 것이다. 보다 구체적으로는, 타이어 고무 조성물과 실리카의 친화력을 높임으로써 실리카에 의한 구름 저항 및 마모 성능을 향상시킬 수 있는 타이어 트레드용 고무 조성물에 관한 것이다. 본 발명에 의하면, 실리카 충전재와 원료 고무의 친화성이 좋아 구름 저항 및 마모 성능이 개선될 뿐만 아니라, 환경에 영향을 주지 않으며, 또한, 고무에 도입된 관능기가 지나치게 강한 극성을 갖지 않아 공정성도 확보할 수 있는 고무 조성물을 제공하는 것을 목적으로 한다. 본 발명에 의하면 고무 분자 사이의 실리카의 분산성 및 상용성을 극대화시킬 수 있어, 타이어의 히스테리시스를 줄여 저연비 성능 및 내마모 성능을 동시에 향상시킬 수 있게 된다.
Rubber composition for tire tread having improved abrasion resistance and rolling resistance
구름 저항 및 마모 성능이 개선된 승용차 타이어 트레드용 고무 조성물
2019-07-08
Patent
Elektronische Ressource
Koreanisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / 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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