用超高速混合机及熔融共混法制备PP/纳米CaCO_3复合材料  

NANO-CaCO3/POLYPROPYLENE COMPOSITE PREPARED BY USING MIXER AND MELT BLENDING METHOD

作　　者：王港[1] 黄锐[1] 王旭[1] 张玲[1] 蔡碧华[1] 

机构地区：[1]四川大学高分子材料加工工程系,成都610065

出　　处：《工程塑料应用》2003年第1期17-19,共3页Engineering Plastics Application

基　　金：国家自然科学基金(29434010;29934070)

摘　　要：针对目前熔融共混法制备聚合物/纳米无机粒子复合材料研究中存在的纳米粒子分散的难题,采用特殊设计的新型超高速混合机(6000r/min)可以对纳米无机粒子进行有效的分散处理,即使在纳米CaCO_3加入量大(体积分数12％,质量分数35％)的情况下,仍能较好地分散,复合材料的微观结构和性能都有较大改善。In order to resolve the problem of nano-particle dispersing in nano-particle/polymer Composite, a ultra-high-speed mixer was designed to do surface treatment on nano-particle. With this new mixer, nano-CaCO3/PP composite was obtained by means of directly dispersing nano-CaCO3 to molten PP. From the results of SEM, it is clear that nano-CaCO3 particles are in a good dispersing condition. Even though nano-CaCO3 content is 12vol% , particles disperse mostly in PP with original size (about 50 ~70 nanometers) and no agglomeration.

关 键 词：超高速混合机 熔融共混法 制备 PP/纳米CaCO3复合材料 聚丙烯 纳米复合材料 表面处理 

分 类 号：TQ327.9[化学工程—合成树脂塑料工业]