文章摘要
Study on Synergistic Reinforcement of NR with Modified Silica/Graphene Oxide
Received:December 18, 2019  Revised:December 18, 2019
DOI：10.12136/j.issn.1000-890X.2020.04.0272
Key Words: silica；graphene oxide；NR；modification；reinforcement；electrostatic assembly；compression heat build-up
Author NameAffiliationE-mail
YANG Bo North University of China 2274936388@qq.com 
LIU Yaqing* North University of China  
ZHAO Guizhe North University of China  
ZHANG Zhiyi North University of China  
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Abstract:
      In this study，silica was modified by silane coupling agent KH550 or co-modified by silane couple agent KH-550 and K-MEPTS，and the modified silica and graphene oxide（GO） were combined to reinforced nature rubber（NR） compound. The effect of interface bonding mode between filler and rubber matrix on the properties of the composites was studied. The results showed that，the NR compound filled with the co-modified silica/GO（refer to as silica-2/GO） which was obtained by electrostatic assembly of co-modified silica and GO had weak Payne effect and high bound rubber content. This indicated that the modified silica-2/GO had good dispersibility in the rubber matrix and was tightly bound to the rubber matrix through covalent bonding. The NR vulcanizate filled with silica-2/GO had a small hysteresis loss，low compression fatigue temperature rise and high tensile strength.
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