PP基纳米SiO_2复合材料性能的研究  

STUDY ON THE POLYPROPYLENE/NANO-SiO_2 COMPOSITES

作　　者：曲宁[1] 武玉斌[1] 刘文鹏[1] 李炳海[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,266042

出　　处：《现代塑料加工应用》2005年第5期1-5,共5页Modern Plastics Processing and Applications

基　　金：国家自然科学基金资助项目(20074019)

摘　　要：利用纳米SiO2、马来酸酐接枝聚乙烯(PE-g-MAH)和聚丙烯(PP)通过熔融共混的加工工艺制备了PP基纳米SiO2复合材料,考察了不同处理方法及用量的纳米SiO2对PP基体的影响。结果表明:经表面处理,用量4%(质量分数,下同)的纳米SiO2和1%PE-g-MAH协同作用,可以使复合材料的冲击强度提高40%,拉伸强度提高10%,耐热性较PP基体提高22℃。采用偏光显微镜(POM)、扫描电镜(SEM)对PP基纳米SiO2复合材料的微观结构进行了表征和分析,证明经表面改性的纳米SiO2(TS530)均匀地分散于PP基体中,从而起到良好的改性作用。The nano-SiO2/PP composites were made with nano-SiO2, PE-g-MAH, PP by melt blending process. The properties of PP matrixes with varied contents and types of nano-SiO2 were studied. The results indicated that the composite with 4% treated nano-SiO2 and 4% PE-g-MAH had the best mechanical properties, the notch impact strength increased by 40%, tensile strength increased by 10%. The heat resistance temperature of composite was improved by 22℃, The micro-structure of nano-SiO2/PP composites was analyzed and characterized by polarized optical microscope （POM） and scanning electron microscope （SEM）. The results demonstrated that the surface modified nano-SiO2 （TS530） was homogeneously dispersed in the PP matrix, therefore it had good modification effect on PP.

关 键 词：纳米二氧化硅 马来酸酐接枝聚乙烯 聚丙烯 改性 力学性能 耐热性 纳米SIO2 复合材料性能 PP 扫描电镜(SEM) 

分 类 号：TB332[一般工业技术—材料科学与工程]