华南理工大学学报(自然科学版) ›› 2004, Vol. 32 ›› Issue (12): 5-10.

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胶乳反应改性法制备炭黑填充型丁腈橡胶复合材料

李卫青 罗远芳 贾德民   

  1. 华南理工大学 材料科学与工程学院‚广东 广州 510640
  • 收稿日期:2004-04-19 出版日期:2004-12-20 发布日期:2015-09-08
  • 通信作者: 李卫青(1977-)‚女‚博士研究生‚主要从事高分子合成、制备与改进研究。 E-mail:wqli@scut.edu.cn
  • 作者简介:李卫青(1977-)‚女‚博士研究生‚主要从事高分子合成、制备与改进研究。
  • 基金资助:
    国家自然科学基金重点项目(59933060)

Preparation of Carbon Black-Filled NBR-based Composites by Reactive Modification in Latex

Li We-i qing Luo Yuan-fang Jia De-min   

  1. College of Materials Science and Engineering‚South China Univ.of Tech.‚Guangzhou 510640‚Guangdong‚China
  • Received:2004-04-19 Online:2004-12-20 Published:2015-09-08
  • Contact: 李卫青(1977-)‚女‚博士研究生‚主要从事高分子合成、制备与改进研究。 E-mail:wqli@scut.edu.cn
  • About author:李卫青(1977-)‚女‚博士研究生‚主要从事高分子合成、制备与改进研究。

摘要: 在以丁腈橡胶(NBR)胶乳、炭黑(HAF)为主的体系中‚通过引入适当的单体——— 甲基丙烯酸甲酯(MMA)或丙烯酸丁酯(BA)‚利用单体对橡胶乳液的接枝‚与 HAF 表面产 生化学结合‚从而改善了炭黑在橡胶中的分散性‚加强了橡胶与炭黑之间的结合‚制备出 了具有优良力学性能和耐热性能的炭黑填充丁腈橡胶复合材料.文中还考察了 NBR、 HAF 与单体的接枝效果‚并对复合材料的力学性能、热性能及动态力学性能进行了研究‚ 通过扫描电镜(SEM)探讨了复合材料的微观结构。

关键词: 丁腈橡胶, 炭黑, 单体, 复合材料, 反应改性

Abstract: Methyl methacrylate (MMA) or butyl acrylate (BA) as the monomers was added into the nitrile-butadiene rubber (NBR) latex containing carbon black (HAF) and were grafted onto the NBR macromolecular chains in the latex‚thus forming chemical bonds on the surfaces of HAF.As a result‚the disparity of carbon black in the rubber matrix was improved;the combination between the rubber and carbon black was strengthened;and the carbon black-filled NBR-based composites with excellent mechanical properties and strong heat-resistance were obtained.The grafting effects of NBR and HAF onto the monomers were studied.The mechanical properties‚the thermal properties and the dynamic mechanical properties of the composites were also investigated.The microstructures of the composites were finally explored by means of SEM.

Key words: nitrile-butadiene rubber, carbon black, monomer, composite, reactive modification

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