Reinforcement of SBR Compound with Chemically Modified Silica
- Reinforcement of SBR Compound with Chemically Modified Silica
- 정동의; 이광렬; 한준수; 유복렬
- Issue Date
- 제107회 대한화학회
- The use of silica with sulphur-functional organosilanes, such as 3-mercaptopropyltrimethoxysilane
(MPTMS) and bis-(triethoxysilylpropyl)tetrasulphide (TESPT), in SBR compound has increased
performance. It is known that MPTMS has disadvantage of short vulcanization time. On the other hand,
Bifunctional oganosilanes, such as TESPT, are very efficient silica-rubber coupling agents. However, it is
known that TESPT cannot be completely hydrolyzed in compounding step. Incomplete hydrolyzed
alkoxy-functional groups can cause volatile organic compounds (VOC) and decreased performance in
SBR compounds. In this study, completely hydrolyzed TESPT and then treated silica affording
hydrophobic and reactive modified silica applicable to tire tread compounds.
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