微波辐照增塑PP/TiO_2复合材料机理研究  

Study on Plastic Mechanism of PP/Nano-TiO_2 Composites on Plastic Mechanism after Microwave Irradiation

作　　者：伍玉娇[1,2] 吴珊[1,2] 龙绍檑[1,2] 

机构地区：[1]贵州大学材料与冶金学院,贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵阳550014

出　　处：《贵州科学》2012年第6期1-5,共5页Guizhou Science

基　　金：贵州省基金项目(黔科合J字[2010]2004)资助

摘　　要：采用熔融挤出法制备PP/TiO2复合材料,通过对比辐照前后断裂伸长率、屈服强度、抗拉强度,加之SEM、TEM以及FIR测试分析,结果表明:一方面微波辐照使得分子链中的基团振动,摩擦生热导致复合材料产生降解,另一方面微波辐照改善了无机刚粒子的分散性和复合材料两相相容性及界面结合。PP/nano-TiO2 composites were prepared by melt extrusion, the results showed that microwave irradia- tion made the group of molecular chain vibrate and heat from friction produces made composites degrade; on the other hand microwave irradiation improves the distribution of inorganic particle in matrix and the two phases com- patibility and the interface combination of composites, by of means comparing the elongation at break, yield strength and tensile strength before and after microwave irradiation, in addition to test and analysis of SEM,TEM and FIR.

关 键 词：微波辐照 PP 纳米TIO2 增塑机理 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]