Effect of Rubber-Filler Interaction on the Mechanical Properties of SSBR/Silica Composites

被引：0
作者：
Shao H. [1 ,2 ]
He J. [1 ]
Wei H. [1 ]
Zhu G. [3 ]
机构：
[1] Otsuka Material Science and Technology (Shanghai) Co., Ltd., Shanghai
[2] Shandong Institute of Scientific and Technical Information, Jinan
[3] School of Applied Technology, Qingdao University, Qingdao
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2019年 / 35卷 / 10期
关键词：
Loss factor; Mechanical property; Modified solution styrene butadiene rubber; Payne effect; Silica;
D O I：
10.16865/j.cnki.1000-7555.2019.0279
中图分类号：
学科分类号：
摘要：
The effect of three kinds of chain features on the silica dispersion and mechanical properties of solution styrene butadiene rubber (SSBR)/silica composites was investigated. The results show that chain modified SSBR (HPR850 and LRE-100) could weaken Payne effect significantly, accompanied by prolonging the linear plateau in the small magnitude, which is attributed to the better dispersion of filler in the rubber matrix, so the heat build-up (tanδ) of composites could be reduced. LRE-100 shows the best dynamic property, the Payne effect (G0'-G∞') could be reduced from 4.59 MPa (RC2557S composite) to 1.27 MPa, meanwhile tanδ is reduced by 38.7%. The compatibility of SSBR and butadiene could be changed by the chain modification of SSBR, so Tg of the composites would shift to a high temperature; and for the better dispersion of silica, tanδ of LRE-100 composite at Tg would increase, which is beneficial to tanδ at 0℃, meanwhile tanδ at 60℃ is reduced. It could also be found that LRE-100 has the lowest apparent activation energy, which is used to characterize the filler-rubber interaction. This indicates the reinforced interaction of fillers and rubber chains, and not merely physical adsorption. © 2019, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：90 / 95and101
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