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
第一作者: Li, S. M.
作者: Li, S. M.;Xu, T. W.;Jia, Z. X.;Zhong, B. C.;Luo, Y. F.;Jia, D. M.;Peng, Z.
作者机构:
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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