SYNTHESIS OF 3-HEXANOYLTHIO-1-PROPYLTRIETHOXYSILANE AND ITS COUPLING EFFECT ON SOLUTION POLYMERIZED STYRENE-BUTADIENE RUBBER/SILICA COMPOUNDS

SUN Jin; SONG Yihu; ZHOU Ming; He Li; ZHENG Qiang; XU Zhikang

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SYNTHESIS OF 3-HEXANOYLTHIO-1-PROPYLTRIETHOXYSILANE AND ITS COUPLING EFFECT ON SOLUTION POLYMERIZED STYRENE-BUTADIENE RUBBER/SILICA COMPOUNDS

Research Article | 更新时间：2021-03-19

- SYNTHESIS OF 3-HEXANOYLTHIO-1-PROPYLTRIETHOXYSILANE AND ITS COUPLING EFFECT ON SOLUTION POLYMERIZED STYRENE-BUTADIENE RUBBER/SILICA COMPOUNDS
- Acta Polymerica Sinica Issue 5, Pages: 446-450(2007)
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- Published：20 May 2007，
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SUN Jin, SONG Yihu, ZHOU Ming, He Li, ZHENG Qiang, XU Zhikang. SYNTHESIS OF 3-HEXANOYLTHIO-1-PROPYLTRIETHOXYSILANE AND ITS COUPLING EFFECT ON SOLUTION POLYMERIZED STYRENE-BUTADIENE RUBBER/SILICA COMPOUNDS. [J]. Acta Polymerica Sinica (5):446-450(2007)
DOI：

SUN Jin, SONG Yihu, ZHOU Ming, He Li, ZHENG Qiang, XU Zhikang. SYNTHESIS OF 3-HEXANOYLTHIO-1-PROPYLTRIETHOXYSILANE AND ITS COUPLING EFFECT ON SOLUTION POLYMERIZED STYRENE-BUTADIENE RUBBER/SILICA COMPOUNDS. [J]. Acta Polymerica Sinica (5):446-450(2007) DOI：

摘要

以γ-巯丙基三乙氧基硅烷与己酰氯为单体

在N2保护与低温下合成偶联剂3-己酰基硫代-1-丙基三乙氧基硅烷(HXT)

将HXT与双-(3-乙氧基硅基丙基)二硫化物(TESPD)分别添加于溶液聚合丁苯橡胶(SSBR)/SiO2混炼胶复合体系中.采用流变学方法表征复合体系的动态粘弹行为

发现HXT可改善填料和基体的相互作用

有效阻止SiO2粒子在加工过程中的团聚.与TESPD相比较

含HXT体系具有较高“Payne效应”临界应变值.

Abstract

A novel coupling agent

3-hexanoylthio-1-propyltriethoxysilane(HXT)

was synthesized through the reaction of 3-triethoxysiyl-1-propanethiol and hexanoyl chloride.HXT or bis-(triethoxysilylpropyl)disulfide (TESPD) as coupling agent were incorporated into solution polymerized styrene-butadiene rubber(SSBR)/silica(SiO2) compounds.Dynamic rheological properties of the compounds were investigated by using an advanced rheomitric expended system (ARES).It is found incorporation of silane coupling agent into SSBR/SiO2 compounds improved the elastic properties and wakened the Payne effect due to the surface modification of SiO2 particles and the improved dispersion of the particles in the SSBR matrix.Compared with TESPD

HXT provides rubber compounds with higher critical strain value of Payne effect and lower storage modulus.In this aspect

HXT performs better than TESPD.This might be attributed to the combined effects of better rubber-filler interaction and better filler dispersion which are obtained when TESPD is replaced with HXT.

关键词

硅烷偶联剂溶聚丁苯橡胶二氧化硅动态粘弹性

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