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Preparation and stress-strain behavior of in-situ epoxidized natural rubber/SiO2 hybrid through a sol-gel method

文献类型： 外文期刊

作者： Li, S. M. 1 ; Xu, T. W. 1 ; Jia, Z. X. 1 ; Zhong, B. C. 1 ; Luo, Y. F. 1 ; Jia, D. M. 1 ; Peng, Z. 2 ;

作者机构： 1.South China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China

关键词： rubber;ENR/SiO2 hybrid;sol-gel reaction;interaction

期刊名称：EXPRESS POLYMER LETTERS （ 影响因子：4.161； 五年影响因子：3.995 ）

ISSN： 1788-618X

年卷期： 2018 年 12 卷 2 期

页码：

收录情况： SCI

摘要： In this paper, epoxidized natural rubber was reinforced by silica generated in-situ though the sol-gel method using tetraethoxysilane(TEOS) as precursor. The results showed that the ring opening reaction of epoxy group appeared in the insitu reaction progress, where the hydrogen bond between Si-OH and C-OH was mainly formed to enhance the stress-strain behavior of ESH simultaneously. During the hot pressing progress, the compound was crosslinked via the chemical reaction of Si-OH and C-OH. The chemical bond between Si-OH and C-OH reinforced rubber-filler interaction, resulting further improved the stress-strain behavior. Besides, comparing with precipitated SiO2 filled ENR, the dispersion of SiO2 in ENR matrix was distinctly more uniform though the sol-gel method, along with the enhancement of mechanical properties. Herein, our findings open up a new way to prepare an environmentally friendly rubber composite with excellent dispersion and strong rubber-filler interaction without curing agent effectively.

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