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PP基纳米SiO_2复合材料性能的研究 被引量:7

STUDY ON THE POLYPROPYLENE/NANO-SiO_2 COMPOSITES
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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)
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) nano-silicon dioxide polyethylene-graft-maleic anhydride polypropylene modification mechanic properties heat resistance
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