聚丙烯/蒙脱土纳米复合材料的非等温结晶动力学研究  

STUDY ON NON-ISOTHERMAL CRYSTALLIZATION KINETICS OF POLYPROPYLENE/MONTMORILLONITE NANOCOMPOSITES

作　　者：刘晓辉[1] 范家起[1] 漆宗能[1] 

机构地区：[1]中国科学院化学所工程塑料国家重点实验室,北京100080

出　　处：《高分子材料科学与工程》2001年第6期103-105,110,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目 (5 9833310

摘　　要：采用 DSC研究了聚丙烯及聚丙烯 /蒙脱土纳米复合材料的非等温结晶行为。结果表明 ,纳米分散的硅酸盐片层在很少的加入量时即可提高复合材料的结晶度 ,使复合材料的结晶温度升高 ,与此同时 ,无机物含量仅为The non isothermal behaviours of polypropylene(PP) and PP/montmorillonite nanocomposites(PMNCs) were investigated by means of DSC. The results show: The silicate layers dispersed nanometricly in PP matrix increase the crystallinity degrees of composites and also heighten the crystallization temperatures of composites in slightly additive amount. At the same time, even at 1% inorganic content, silicate layers can increase the rates of crystallization obviously.

关 键 词：聚丙烯 蒙脱土 纳米复合材料 差示扫描量热法 非等温结晶动力学 结晶度 结晶速率 

分 类 号：O631.13[理学—高分子化学] O632.12[理学—化学]