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	合成橡胶工业 CHINA SYNTHETIC RUBBER INDUSTRY 2010 Vol.33 No.2 P.135-138

羧基丁苯橡胶/钠基黏土复合材料的结构与性能

陈树国　任文坛　张勇　

摘　要：用乳液插层法制备了羧基丁苯橡胶/钠基黏土(XSBR/Na-clay)复合材料,用小角X射线衍射仪对其微观结构进行了表征,并对其动态力学性能和力学性能进行了研究.结果表明,在XSBR/Na-clay共混物乳胶薄膜中,Na-clay的层间距加大,形成了插层结构;XSBR/Na-clay混炼胶和硫化胶中的Na-clay呈剥离状态.Na-clay的加入使XSBR薄膜的拉伸强度得到提高,混炼胶和硫化胶的力学性能得到明显改善;硫化胶的储能模量增大,玻璃化转变温度升高.
关键词：羧基丁苯胶乳;黏土;乳液插层;微观结构;动态力学性能;力学性能
分类号：TQ333.1　文献标识码：B
文章编号：1000-1255(2010)02-0135-04

Structure and properties of carboxy styrene-butadiene rubber/sodium based clay composites

Chen Shuguo（School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China）　 Ren Wentan（School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China）　 Zhang Yong（School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China）　

Abstract：Carboxy styrene-butadiene rubber (XSBR)/sodium based clay (Na-clay) composites were prepared by emulsion intercalation, the microstructure of the composites was characterized by X-ray diffraction, and the mechanical properties and dynamic mechanical properties of the composites were studied. The results showed that the interlayer spacing of Na-clay was enlarged, intercalation structure was formed in the XSBR/Na-clay film, and the exfoliated structure was observed in XSBR/Na-clay compounds and vulcanizates. The tensile strength of XSBR film was enhanced, mechanical properties of XSBR/Na-clay compounds and vulcanizates were evidently improved, and the storage modulus of XSBR/Na-clay vulcanizates and glass transition temperature increased after the incorporation of Na-clay into XSBR matrix.
Keywords：carboxy styrene-butadiene latex; clay; emulsion intercalation; microstructure; dynamic mechanical property; mechanical property

基金项目：浙科发技2007(175)号2007年重大科技专项优先主题资助项目(2007 C 11017).
作者简介：陈树国(1985-),男,硕士研究生.已发表论文3篇.
作者单位：陈树国（上海交通大学,化学化工学院,上海200240）　
　　　　　任文坛（上海交通大学,化学化工学院,上海200240）　
　　　　　张勇（上海交通大学,化学化工学院,上海200240）　

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收稿日期：2009年2月24日

修稿日期：2009年11月20日

出版日期：2010年3月15日