纳米CaCO_3/EPO/PP复合材料性能与结构的研究  

Study on Property and Structure of Nano-meter CaCO_3/EPO/PP Composite

作　　者：俞江华[1] 王国全[1] 王文一[1] 陈建峰[2] 曾晓飞[2] 

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

出　　处：《塑料工业》2004年第11期16-18,共3页China Plastics Industry

基　　金：国家"十五"重大科技攻关项目 (2 0 0 2 -CC -0 1);教育部重大科技研究基金项目(重大 0 2 0 2 )

摘　　要：研究了纳米CaCO3 /EPO/PP复合材料的力学性能、熔体流变性能及纳米CaCO3 粒子在PP基体中的分散状况。结果表明 :弹性体EPO对PP有很好的增韧效果 ,当EPO用量为 4份时 ,PP从脆性断裂转变成韧性断裂 ;当EPO用量为 10份时 ,PP复合材料的室温和低温缺口冲击强度均有大幅度的提高。在EPO/PP复合材料中加入纳米CaCO3不仅可以显著提高复合材料的室温和低温缺口冲击强度 ,而且可显著提高复合材料的弯曲弹性模量和MFR ,改善复合材料的加工流动性能 ;纳米CaCO3The mechanical and rheological properties of nano-meter CaCO 3/EPO/PP composites and the dispersion of nano-meter CaCO 3 in PP matrix were studied. The results showed EPO had good toughening effect on PP, when the content of EPO was 4 phr, PP changed from brittle fracture to tough fracture;when the content was 10 phr, the notched impact strength of the composite at room and low temperature increased greatly. The addition of nano-meter CaCO 3 to the EPO/PP composite could not only improve the impact strength at room and low temperature, but also the bending modulus and the MFR of EPO/PP blend, resulted in improving of the processability of the composite. CaCO 3 nano-meter particles were well dispersed in PP matrix at nano-meter scale.

关 键 词：纳米CaCO3/EPO/PP复合材料 力学性能 熔体流变性能 聚丙烯 乙烯-丙烯共聚弹性体 碳酸钙 结构 增韧改性 冲击强度 弯曲弹性模量 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]