聚丙烯/蒙脱土纳米复合材料Ⅰ.制备、表征及动态力学性能  

POLYPROPYLENE/MONTMORILLONITE NANOCOMPOSITES Ⅰ. PREPARATION,CHARACTERIZSATION AND DYNAMIC MECHNICAL PROPERTIES

作　　者：刘晓辉[1] 范家起[1] 李强[1] 朱晓光[1] 漆宗能[1] 

机构地区：[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

出　　处：《高分子学报》2000年第5期563-567,共5页Acta Polymerica Sinica

基　　金：国家自然科学基金资助项目!(基金号59833310)

摘　　要：用原位接枝插层法成功地制备了聚丙烯 /蒙脱土纳米复合材料 (PPMNC) .采用X射线衍射研究复合材料中蒙脱土硅酸盐片层间距 ,发现硅酸盐片层间距从 1 94nm升至 4nm左右 .同时研究了PPMNC的动态力学性能 ,结果表明 :PPMNC的动态储能模量明显高于聚丙烯 (PP) ,尤其在T >Tg 高温段 ,甚至可以达到PP基体的In recent years,the hybrids based on organic polymers and inorganic clay minerals consisting of layered silicates have attracted great interest from both scientific and industry fields,since they exhibit dramatic increases in their mechanical and thermal properties synergistically derived from the two components.In this paper the in\|situ graft\|intercalation method has been introduced successfully in preparing polypropylene/montmorillonite nanocomposites (PPMNC).The spaces of silicate layers of montmorillonite in the composites were investigated by using X\|ray diffractometer.It was found that the space of the layers increased form 1.9nm up to about 4nm.The dynamic mechanical properties of PPMNCs were also studied.The results showed that the dynamic storage modulus of PPMNCs was higher than that of PP, as high as 2 times,especially at temperatures above 80℃.

关 键 词：聚丙烯 纳米复合材料 接枝插层法 蒙脱土 制备 

分 类 号：O632[理学—高分子化学]