| Study on Dispersion of Silica in SSBR |
| Received:July 13, 2018 Revised:July 13, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.03.0184 |
| Key Words: silica；SSBR；coupling agent；dispersion；physical property |
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| Abstract: |
| The effects of the addition level of silica and coupling agent Si69 on the silica dispersion and physical properties of solution polymerized styrene butadiene rubber（SSBR） compound were studied. The results showed that，as the addition level of silica increased，the silica dispersion in the SSBR vulcanizate decreased，the hardness increased，and the tensile strength and tear strength of the vulcanizate filled with 60 phr silica were the maximum. In the SSBR compound filled with 65 phr silica，when the addition level of coupling agent Si69 was 6 phr，the silica dispersion and physical properties of SSBR vulcanizate were the best. |
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