纳米CaCO_3-PVC复合材料微观结构和力学性能研究  

Microstructure and mechanical properties of Nano-CaCO_3-PVC composites

作　　者：曾晓飞[1] 陈建峰[1] 赵红英[2] 

机构地区：[1]北京化工大学教育部超重力工程技术中心 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2001年第4期1-3,共3页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家高技术"86 3"计划资助项目 (715 0 0 9 0 0 80 )

摘　　要：将纳米CaCO3 进行表面改性 ,制备了纳米CaCO3 PVC复合材料。用透射电子显微镜观察纳米CaCO3 改性前后及纳米CaCO3 PVC复合材料的微观结构。结果表明 ,表面改性后纳米CaCO3 在PVC基体中达到了纳米级的分散 ,对PVC复合材料有显著的增韧作用 ,复合材料的缺口冲击强度达到 41 2kJ/m2 。此外 ,还研究了纳米Ca CO3Nanocomposites of surface modified Nano CaCO 3 of average size 30～50 nm and PVC were prepared. The microstructure of dispersed calcium carbonate nanoparticles in the nanocomposites was observed by the aid of electronic microscope. The results showed that CaCO 3 nanoparticles were well dispersed in PVC matrix. Remarkable improvement of toughness of PVC composites was observed. The impact strength of the PVC nanocomposite reached 41 2 kJ/m 2. The rheological property of Nano CaCO 3 PVC composites was also investigated.

关 键 词：CACO3 PVC 纳米复合材料 冲击强度 流变性能 微观结构 力学性能 碳酸钙 聚氯乙烯树脂 

分 类 号：TB332[一般工业技术—材料科学与工程] TB383