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.
出处
《现代塑料加工应用》
CAS
北大核心
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)
