用硫化仪数学分析法确定白炭黑在丁苯橡胶中最佳填充量  

Determination of optimum filling amount of silica in styrene-butadiene rubber by curometer mathematic analysis method

作　　者：杨树颜[1] 贾志欣[2] 刘岚[2] 贾德民[2] 罗远方[2] 

机构地区：[1]东莞理工学院广东高校化工清洁生产与绿色化学品工程技术开发中心,广东东莞523808 [2]华南理工大学材料科学与工程学院,广州510640

出　　处：《合成橡胶工业》2014年第6期458-461,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(51003031;51303026);"十二五"国家科技支撑计划资助项目(2012BAE 01 B 03);广东省高性能与功能高分子材料重点实验室开放基金资助项目(20130003

摘　　要：以谷氨酸二硫代氨基甲酸镧(La-GDTC)改性白炭黑(Si O2)填充丁苯橡胶(SBR),采用硫化仪数学分析法确定了Si O2最佳用量,通过橡胶加工分析仪分析了填料网络结构的形成,研究了SBR/La-GDTC/Si O2复合材料的拉伸性能。结果表明,采用硫化仪数学分析法确定Si O2最佳用量为40份;当Si O2用量不超过40份时,SBR/La-GDTC/Si O2复合材料的Payne效应不明显,当Si O2用量为50份时,复合材料出现了明显的Payne效应;随着Si O2用量的增加,SBR/La-GDTC/Si O2复合材料的拉伸强度先升高后下降,当Si O2用量为40份时达到最大值(28.03 MPa),表明采用硫化仪数学分析法可以快捷、准确确定在橡胶复合材料中无机填料的最佳用量。The silica（ Si O2） modified by lanthanum glutamic dithio-carbamate（ La-GDTC） was filled in styrene-butadiene rubber（ SBR）,the optimum Si O2 amount was investigated by curometer mathematic analysis method,the formation of filler network was analyzed by rubber processing analyzer,and the tensile properties of SBR / La-GDTC / Si O2 composites were studied. The results showed that the optimum Si O2 amount was about 40 phr,below which no evident Payne effect was observed,however,as the Si O2 amount reached 50 phr, visible Payne effect appeared. The tensile strength increased first and then decreased with increasing Si O2 amount,and the maximum value was achieved（ 28. 03 MPa） at 40 phr Si O2. It indicated that curometer mathematic analysis method could estimate the optimum filler amount of rubber composites fast and precisely.

关 键 词：硫化仪 数学分析法 谷氨酸二硫代氨基甲酸镧 白炭黑 丁苯橡胶 填料网络 拉伸性能 

分 类 号：TQ333.1[化学工程—橡胶工业]