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用超高速混合机及熔融共混法制备PP/纳米CaCO3复合材料
NANO-CaCO3/POLYPROPYLENE COMPOSITE PREPARED BY USING MIXER AND MELT BLENDING METHOD
【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CaCO3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。
【Abstract】 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】 熔融共混;
纳米复合材料;
表面处理;
超高速混合机;
【Key words】 melt blending; nano-composite; surface treatment; ultra-high-speed mixer;
【Key words】 melt blending; nano-composite; surface treatment; ultra-high-speed mixer;
【基金】 国家自然科学基金(29434010,29934070)
- 【文献出处】 工程塑料应用 ,Engineering Plastics Application , 编辑部邮箱 ,2003年01期
- 【分类号】TB332
- 【被引频次】22
- 【下载频次】304