PP／无机纳米粒子／POE-g-MAH三元复合材料的研究  

Study on PP / Inorganic Nano-particles / POE-g-MAH Ternary Composites

作　　者：王珏[1] 伍玉娇[1] 肖贤彬[1] 骆丁胜[1] 蒙日亮[1] 

机构地区：[1]贵州大学材料科学与冶金工程学院

出　　处：《塑料科技》2008年第10期36-39,共4页Plastics Science and Technology

基　　金：国家863计划项目(2003AA32X230);贵州省自然科学基金项目(黔科合计2004(3045)号);贵州省工业攻关项目(黔科合GY字(2006)3013)资助

摘　　要：采用熔融共混法分别制备了PP/纳米SiO2/POE-g-MAH和PP/纳米TiO2/POE-g-MAH两种复合材料;通过力学性能测试和SEM照片研究了其力学性能及微观形态结构。结果表明:纳米SiO2和纳米TiO2对PP/POE-g-MAH复合材料具有增强增韧作用,在POE-g-MAH的用量为5%、纳米粒子的用量为2%时,PP/无机纳米粒子/POE-g-MAH复合材料的综合力学性能达到最佳;SEM分析表明,该复合材料在断裂过程中发生塑性变形,因而韧性较佳;由DSC分析可知,纳米SiO2、TiO2均对PP基体有异相成核作用,此作用随POE-g-MAH的加入得到进一步促进。PP/nano-SiO2/POE-g-MAH and PPInano-TiO2/POE-g-MAH composites were prepared by melt blending technology. The microstructure and properties of the composites were studied by means of SEM and mechanical property test. The results indicate that： both nano-SiO2 and nano-TiO2 can strengthen and toughen PP composites, the general mechanical property of PP/ inorganic particles/POE-g-MAH composite is excellent when POE-g-MAH content is 5%, nanoparticle content is 2%; The composites with 2% inorganic nano-particles and 5% POE-g-MAH exhibit the best mechanical properties. SEM analysis shows that plastic deformation occurs during fracture. DSC analysis shows that nano-particles have heterogeneous nucleating effect on PP matrix, the addition of POE-g-MAH further promotes the effect.

关 键 词：聚丙烯 无机纳米粒子 POE—g-MAH 

分 类 号：TB332[一般工业技术—材料科学与工程]