累托石/丁腈橡胶纳米复合材料的结构与性能  

Structure and properties of rectorite/nitrile rubber nanocomposites

作　　者：王益庆[1] 张惠峰[1] 吴友平[1] 杨军 汪昌秀 张立群[1] 

机构地区：[1]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029 [2]湖南株洲时代新材料股份有限公司,湖南株洲412007 [3]湖北名流累托石科技股份有限公司,湖北武汉430071

出　　处：《合成橡胶工业》2005年第3期187-190,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(05173003);国家"十五"攻关计划资助项目(2001BA310A12);北京市科技新星计划资助项目(H010410010112);北京市自然科学基金资助项目(2031001)

摘　　要：用乳液共混共凝法制备了累托石/丁腈橡胶(NBR)复合材料,分别进行了透射电镜分析和X射线衍射分析,研究了其力学性能和气体阻隔性能。结果表明,累托石以厚度为10 00nm左右的晶束均匀分散于NBR中;累托石/NBR复合材料属于隔离型纳米复合材料;与传统的炭黑/NBR复合材料和白炭黑/NBR复合材料相比,累托石/NBR纳米复合材料具有高的邵尔A型硬度和300%定伸应力,尤其是其气体阻隔性能得到了显著提高。Rectorite/nitrile rubber(NBR) nanocomposites were prepared by co-coagulating latex and rectorite aqueous and analysized by transmission electron microscopy and X-ray diffraction.The mechanical properties and gas permeability were also investigated. The results showed that the rectorite layers were uniformly dispersed in the NBR at about 10.00 nm bundles.Rectorite/NBR nanocomposites was a separated structure. Compared with the carbon black/NBR nanocomposites and silica/NBR nanocomposites, rectorite/NBR nanocomposites exhibited higher Shore A hardness and modulus at 300%.The gas barrier was enhanced markedly.

关 键 词：累托石 丁腈橡胶 纳米复合材料 力学性能 气体阻隔性能 

分 类 号：TQ333.7[化学工程—橡胶工业]