改性针形纳米碳酸钙在PVC中的应用研究  

Application of Modified Needle-shaped Nano-calcium Carbonate in PVC

作　　者：焦其帅[1] 胡永琪[2] 陈瑞珍[1] 郝宏强[1] 庞秀[1] 

机构地区：[1]河北化工医药职业技术学院化学与环境工程系,河北石家庄050026 [2]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《中国塑料》2011年第9期79-84,共6页China Plastics

摘　　要：用市售改性剂对自制的针形纳米碳酸钙进行表面改性,然后将改性针形纳米碳酸钙填充到聚氯乙烯(PVC)材料中,研究了PVC复合材料的力学性能。与未填充改性针形纳米碳酸钙的PVC相比,添加5份改性针形碳酸钙的PVC复合材料拉伸强度提高了10%、冲击强度提高了7%;扫描电子显微镜分析显示,改性针形纳米碳酸钙在PVC体系中分散均匀,冲击试样断面和拉伸试样断面均呈现明显的韧性断裂特征。Needle-shaped nano-calcium carbonate was modified and was introduced into poly（vinyl chloride）（PVC）, and the mechanical properties of the composites were studied. The tensile and impact strength of the composites containing 5 % modified nano-calcium carbonate increased by 5 % and 10 %, respectively, compared with unfilled PVC. Scanning electron micrograph showed that the dispersioa of the modified nano-calcium carbonate was uniform, and fracture surface showed a ductile mode.

关 键 词：针形纳米碳酸钙 表面改性 聚氯乙烯 力学性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]