文献类型：期刊文献

中文题名：PS／改性纳米CaCO_3的共混挤出制备

英文题名：Preparation of PS/nano-CaCO_3 composite materials by blending extrusion

作者：蔡梦军[1];陈建定[1];卢振潇[1]

机构：[1]华东理工大学材料科学与工程学院国家超细粉末工程研究中心,上海200237

年份：2007

卷号：24

期号：1

起止页码：47

中文期刊名：合成树脂及塑料

外文期刊名：China Synthetic Resin and Plastics

收录：CSTPCD;;EI(收录号：20071310514310);Scopus;北大核心:【北大核心2004】；

基金：上海市纳米技术专项(0352nm045)。

语种：中文

中文关键词：聚苯乙烯;纳米碳酸钙;复合材料;共混挤出

外文关键词：polystyrene; nanometer calcium carbonate; composite material; blending extrusion

摘要：通过共混挤出方法制备聚苯乙烯(PS)／改性纳米CaCO3复合材料,分析测试其冲击强度和弯曲性能及维卡软化温度,并表征了纳米CaC,3子在PS中的分散状态。当w(nano-CaCO3)为2．5％-5．0％时,复合材料的冲击强度和弯曲强度均显著提高,对热性能影响较小,维卡软化温度仍维持在98℃左右。透射电子显微镜观测表明,纳米CaCO3粒子在复合材料中仍呈纳米分散状态。
Several kinds of composite materials consisting of polystyrene（PS） and modified nanometer calcium carbonate （nano-CaCO3） were prepared by blending extrusion method. The impact strength, flexural property and Vicat softening point of the composite material （PS/nano-CaCO3）were analyzed; the distribution status of nano-CaCO3 particles in the PS matrix was characterized. When mass fraction of nano-CaCO3 was in the range of 2.5%-5.0%, both impact strength and flexural strength were improved remarkably, whereas the thermal performance of the composites was only influenced a little as verified by the unchanged Vicat softening temperature of 98 ℃. The observation by transmission electron microscope demonstrated the nano-monodispersity of the CaCO3 particles in the composite materials.