高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (10): 1767.

• 研究论文 • 上一篇    下一篇

插层聚合制备聚丙烯/蒙脱土纳米复合材料及其结构性能表征

马继盛, 漆宗能, 张树范, 王新, 陈士娟, 胡友良   

  1. 中国科学院化学研究所分子科学中心, 工程塑料国家重点实验室, 北京 100080
  • 收稿日期:2000-09-27 出版日期:2001-10-24 发布日期:2001-10-24
  • 通讯作者: 漆宗能(1935年出生),男,研究员,博士生导师,主要从事高分子合金及纳米复合材料研究.E-mail:majs@sklep.icas.ac.cn E-mail:majs@sklep.icas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号:59833130)资助

Preparation and Characterization of Polypropylene/Montmorillonite Nanocomposites by Intercalative Polymerization

MA Ji-Sheng, QI Zong-Neng, ZHANG Shu-Fan, WANG Xin, CHEN Shi-Juan, HU You-Liang   

  1. State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2000-09-27 Online:2001-10-24 Published:2001-10-24

摘要: 将插层聚合的概念引入烯烃聚合,制备了聚丙烯/蒙脱土(PP/MMT)纳米复合材料.X射线衍射和TEM分析结果表明,蒙脱土在聚丙烯基体中达到了纳米级的分散.动态力学性能研究结果表明,在高于Tg的温度区域内PP/MMT纳米复合材料的储能模量(E)成倍增加,加入8%的蒙脱土(MMT),PP/MMT的E提高近3倍.PP/MMT的玻璃化转变温度Tg有一定程度的提高,随蒙脱土含量的增加,PP/MMT的热分解温度和热变形温度(HDT)都有大幅度提高.

关键词: 聚丙烯纳米复合材料, 蒙脱土, 插层聚合

Abstract: Polypropylene/montmorillonite(PP/MMT) nanocomposites were prepared via intercalative polymerization. The wide angle X-ray diffractometer(WAXD) patterns and the transmission electron microscope(TEM) images of the PP/MMTnanocomposites showed the MMTlayers were exfoliated into nanometer size and dispersed uniformly in the PPmatrix. The nanocomposites exhibited much higher storage modulus compared to that of pure PP. Especially at the temperature higher than Tg, the storage modulus of PP/clay nanocomposites was about three times that of pure PP. The maximum decomposition temperature and HDTof the nanocomposites remarkably increased with the increasing of MMTcontent.

Key words: PP nanocomposites, Montmorillonite, Intercalative polymerization

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