Styrene butadiene rubber(SBR)/aramid fiber(AF) composites were prepared by adding compatibilizers with different state and grafting ratio of maleic anhydride.The tensile strength,tear strength,energy storage of material cross section and interface,and fiber dispersity of the composites were studied.The results showed that the aramid fiber with different compatibilizers dispersed uniformly in SBR,and the interfacial bonding property was improved.The tensile strength and elongation at break of the composite increased by nearly 42% and 32.3% respectively when MLPB-2 with high grafting ratio was added.The longitudinal tear and transverse tear of MLPB-1 composite with low grafting ratio increased by 34.1% and 38.1%,respectively.The results shown that the modification effect of viscosity flow compatibilizer was better than that of solid powder compatibilizer.The composite of MLPB compatibilizer was better than that of single MLPB compatibilizer.When the total amount of MLPB-2 compatibilizer was 3phr and the content of MLPB-2 compatibilizer was 2.25phr,the composite had the best comprehensive properties.
Xiang Kun, Luo Zhu, Xu Nai, Li Yang, Xiong Deyong, Zhou Zhuwen, Liu Gaofu
. Preparation and property of SBR/AF composite modified by maleic anhydride graft compatibilizer[J]. New Chemical Materials, 2020
, 48(12)
: 57
-60
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.014
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