| Application of Interface Coupling Agent KH550 in Graphene Oxide/Silica Nano-hybrid Fillers |
| Received:September 18, 2018 Revised:September 18, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.08.0587 |
| Key Words: interface coupling agent；graphene oxide；silica；nano-hybrid filler；SBR；BR；composite；wear resistance；heat build-up |
| Author Name | Affiliation | E-mail | | LI Pengju | Beijing University of Chemical Technology | 379614771@qq.com | | WU Xiaohui* | Beijing University of Chemical Technology | wuxiaohui555@163.com | | LU Yonglai | Beijing University of Chemical Technology | | | ZHANG Liqun | Beijing University of Chemical Technology | |
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| Abstract: |
| The silica was modified by γ-aminopropyltriethoxysilane（coupling agent KH550），then mechanically mixed with the graphene oxide（GO） suspension，and coupling agent KH550 modified GO/Silica nano-hybrid filler（GO@SiO2） was prepared by spray-drying mixture．The effect of the coupling agent KH550 amount on the properties of the solution-polymerized styrene-butadiene rubber（SSBR）/butadiene rubber（BR）/GO@SiO2 composite was investigated．The results showed that，when the mass fraction of coupling agent KH550 was 7% and 10% of silica，the thermal stability of GO@SiO2 was better.The coupling agent KH550 could significantly improve the crosslink density，filler dispersibility，wear resistance and reduce heat build-up of composites．When the mass fraction of coupling agent KH550 was 5% of silica，the crosslink density was the highest and the comprehensive physical properties of the composite were the best．When the mass fraction of coupling agent KH550 was 10% of silica，the wear resistance of the composite was the best and the heat build-up was the lowest. |
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