| Study on high functional modification of silica and properties of filled SBR compound |
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| DOI： |
| Key Words: silica；coupling agent；SBR；high functional modification；hydrolysis process；physical property |
| Author Name | Affiliation | | HAN Xiao-jie | Beijing University of Chemical Technology | | ZHANG Dong-yue | Beijing University of Chemical Technology | | LIU Ya-kang | Beijing University of Chemical Technology | | ZHANG Li-qun | Beijing University of Chemical Technology |
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| Abstract: |
| The silica was modified by silane coupling agent KH-570，and the properties of modified silica filled SBR compound were investigated. The results showed that，the highest functionality of the product was obtained and the organic grafting rate was 16.3%，when the silica was modified by toluene at reflux condition，the ratio of deionized water and coupling agent was 0.35，the hydrolyzing time was 143 min，and the addition level of coupling agent was 8 phr；the dispersion of the modified silica in SBR compound was obviously improved，the optimum cure time was shortened and better comprehensive physical properties were obtained. |
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