• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Mechanistic study of fatigue behavior of vinyltriethoxysilane-coupled carbon black/styrene-butadiene rubber vulcanizate
【24h】

Mechanistic study of fatigue behavior of vinyltriethoxysilane-coupled carbon black/styrene-butadiene rubber vulcanizate

机译：乙烯基三乙氧基硅烷偶联的炭黑/丁苯橡胶硫化橡胶疲劳行为的力学研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The increase in fatigue to failure (FTF) cycles by three times was observed for styrene-butadiene rubber (SBR) vulcanizate containing carbon black treated with 2.73 phr vinyltriethoxysilane (VTEOS) over the untreated furnace carbon black (UFCB) vulcanizate at an extension ratio of 1.80. There could be several factors responsible for such a phenomenal increases in FTF; however, specifically the chemical reactions associated with this are investigated. The UFCB contains carboxylic and lactone groups on its surface besides other groups. On treatment with VTEOS, the ethoxy or silanol group(s) of it reacts with the carboxylic and lactone groups of UFCB. This provides an interface between the particulate UFCB and the flexible rubber matrix unlike UFCB, which adsorbs polymer in absence of VTEOS, Furthermore, the vinyl group thus attached to the UFCB takes part in vulcanization reaction and increase in the degree of cross-linking. In addition, the VTEOS substantially reduces the formations of weak polysulphidic linkages. The added flexible interface increased cross-linking and reduced polysulphidic linkages seem to be mainly responsible to the significant improvement of FTF behavior. (C) 2000 John Wiley & Sons, Inc. [References: 22]
机译：对于含有2.73 phr乙烯基三乙氧基硅烷（VTEOS）处理过的炭黑的丁苯橡胶（SBR）硫化橡胶，与未处理的炉式炭黑（UFCB）硫化橡胶相比，其延展性（FTF）循环提高了三倍。 1.80。 FTF如此惊人的增长可能有多种原因。然而，具体地，研究了与此相关的化学反应。除了其他基团以外，UFCB在其表面上还包含羧基和内酯基团。用VTEOS处理后，其乙氧基或硅烷醇基团会与UFCB的羧基和内酯基团发生反应。与UFCB不同，这提供了颗粒状UFCB和柔性橡胶基质之间的界面，UFCB在不存在VTEOS的情况下吸附聚合物。此外，如此连接至UFCB的乙烯基参与硫化反应并增加了交联度。另外，VTEOS大大减少了弱多硫键的形成。增加的灵活界面，增加的交联和减少的多硫键似乎是造成FTF行为显着改善的主要原因。 （C）2000 John Wiley＆Sons，Inc. [参考：22]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号