学术
摘 要:
研究偶联剂Si69原位改性白炭黑对SSBR胶料性能的影响。结果表明，偶联剂S169原位改性白炭黑可以降低SSBR混炼胶的门尼粘度，减弱混炼胶的Payne效应，改善混炼胶的加工性能；其在SSBR硫化胶中的分散度提高，且分散均匀，可以降低硫化胶的邵尔A型硬度，提高硫化胶的300％定伸应力。动态粘弹性能分析表明，偶联剂Si69原位改性白炭黑可降低60℃下、多次应变及大应变、宽频率范围内SSBR硫化胶的滞后损失。动态热力学分析表明，偶联剂Si69原位改性白炭黑可以提高SSBR硫化胶在0℃左右的损耗因子，从而提高胶料的抗湿滑性能。[著者文摘]
文章出处:
《橡胶工业》-2008年55卷2期 -75-79页
栏目信息:
文献标识码:
A
文章编号:
1000-890X（2008）02-007505
相关文章:
Influence of in-situ modification of silica with coupling agent Si69 on the properties of SSBR
WU You-ping, ZHAO Qing-song , ZHAO Su-he （Beijing University of Chemical Technology, Beijing 100029, China）
Abstract:
The influence of in-situ modification of silica with coupling agent Si69 on the properties of solution SBR was investigated. The results showed that in-situ modification of silica with coupling agent Si69 could decrease Mooney viscosity and Payne effect of SSBR compound,and improve its processing properties;the dispersion degree and uniformity of silica in SSBR vulcanizate were improved; Shore A hardness of the vulcanizate was decreased and stress at 300% elongation increased. RPA analysis indicated that in-situ modification of silica with coupling agent Si69 could decrease tan8 of SSBR compound at the condition of 60 ℃ ,multiple strains and large strains and wide range of frequency. DTMA results showed that in-situ modification of silica with coupling agent Si69 could increase tanδ of SSBR vulcanizate at 0 ℃ ,and thus increase the wet skid resistance of the composites.[著者文摘]
Key words:
coupling agent ; in-situ modification; silica ; SSBR; loss factor ; wet skid resistance
基金资助:
国家自然科学基金资助项目（50303002）、“十五”国家科技攻关项目（2004BA310A41）和北京市科技新星计划项目（2004A14）
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