高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (4): 734.

• 研究论文 • 上一篇    下一篇

插层聚合聚丙烯-蒙脱土纳米复合材料的微观结构形态

马继盛, 张世民, 漆宗能, 胡友良, 张树范   

  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:2001-03-06 出版日期:2002-04-24 发布日期:2002-04-24
  • 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、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.

Microstructure and Morphology of PolypropyIene/Clay NanocompositesSynthesized via Intercalative Polymerization

MA Ji-Sheng, ZHANG Shi-Min, QI Zong-Neng, HU You-Liang, ZHANG Shu-Fan   

  1. State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2001-03-06 Online:2002-04-24 Published:2002-04-24

PDF (PC)

被引次数

85

摘要： 使用偏光显微镜、扫描电镜、透射电镜和广角X射线衍射法研究了插层聚合法制备的聚丙烯-蒙脱土(PP-MMT)纳米复合材料的微观结构和形态发展。结果表明,随着插层聚合反应的进行,较大的初级MMT粒子逐渐剥离成较小的次级粒子。次级粒子由2～20片的单个MMT片层组成,其层间充满了PP分子链。提出了插层聚合过程中PP-MMT复合材料的形态发展模型。另外,MMT的加入对PP的球晶形态也有重要影响,PP完整的球晶随MMT的加入逐渐变小和趋于扭曲甚至破碎。

关键词: 聚丙烯纳米复合材料, 形态, 蒙脱土, 插层聚合

Abstract: Polypropylene/montmorillonite(PP-MMT) nanocomposites were synthesized via intercalativepolymerization.The morphology evolution and microstructure of the nanocomposites were investigated bymeans of polarized optical microscopy(POM), scanning electron microscopy(SEM), transmssion electronmicroscopy(TEM) and wide angle Xray diffraction (WAXD).It has been found that the big primary MMT particles were mostly dissociated into smaller secondary particles, which consists of 2～20 individual MMT layers and expanded gallery distance full of PPchains.The morphology evolution model of the PP-MMT during the intercalation polymerization is discussed.It has been also found that the presence of MMT influences the spherulite morphology of the polypropylene in the PP-MMT nanocomposites with in-creasing of MMT content in nanocomposite, the dimension of the spherulite reduced and the shape becamedistorted.

Key words: PP nanocomposites, Morphology, Montmorillonite, Intercalation polymerization

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