文章摘要
Effect of Silica/Graphene Hybrid Fillers on Properties of NR Compound
Received:March 11, 2021  Revised:March 11, 2021
DOI：10.12136/j.issn.1000-890X.2022.08.0563
Key Words: NR；graphene；silica；hybrid filler；coupling agent；co-dispersant；thermal conductivity
Author NameAffiliationE-mail
XIE Shicheng Qingdao University of Science and Technology 2596547752@qq.com 
CAI Rui Jihua 3517 Rubber Products Co.，Ltd  
WANG Yuchao Qingdao University of Science and Technology  
ZENG Yi Jihua 3517 Rubber Products Co.，Ltd  
XIAO Wei Jihua 3517 Rubber Products Co.，Ltd  
JIANG Yanfeng Jihua 3517 Rubber Products Co.，Ltd  
JIANG Xizhou Prinx Chengshan（Shandong） Tire Co.，Ltd  
SUI Yongqiang Prinx Chengshan（Shandong） Tire Co.，Ltd  
XU Qi Prinx Chengshan（Shandong） Tire Co.，Ltd  
WANG Yan Prinx Chengshan（Shandong） Tire Co.，Ltd  
CHENG Fansheng Prinx Chengshan（Shandong） Tire Co.，Ltd  
XIN Zhenxiang Qingdao University of Science and Technology  
ZHAO Shuai Qingdao University of Science and Technology  
CHE Mingming Prinx Chengshan（Shandong） Tire Co.，Ltd  
LI Lin* Qingdao University of Science and Technology 2596547752@qq.com 
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Abstract:
      The silica/graphene hybrid filler was obtained by Michael addition reaction between the silica modified by coupling agent KH550 and graphene modified by co-dispersant TA to form strong hybrid bonds. The dispersibility of silica/graphene hybrid fillers modified with different amounts of coupling agent KH550 in the compound formulations in natural rubber （NR） compounds and their effects on the properties of NR compounds were studied. The results showed that，compared with the NR vulcanizate without coupling agent KH550，the tensile strength of the NR vulcanizate of 2 phr of coupling agent KH550 modified silica/co-dispersant TA modified graphene hybrid filler was the highest （27. 8 MPa），the compression heat build-up was the lowest，the glass transition temperature was the lowest （-37. 06 ℃），and the thermal conductivity was the highest （the thermal conductivity at 30 and 150 ℃ are 0. 168 and 0. 184 W·m-1·K-1，respectively），the aggregation of silica in the vulcanizate was obviously weakened. And the comprehensive performance of the vulcanizate was the best.
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