中国塑料2017，Vol.31Issue(10)：49-54,6.DOI:10.19491/j.issn.1001-9278.2017.10.009
聚丙烯／改性SiO2复合材料的制备与性能研究
Preparation and Properties of Polypropylene/Modified SiO2 Composites
摘要
Abstract
Surface-modified SiO2 particles with γ-metharyloxyethyl-propyl trimethoxy silane,a silane coupling agent (KH570),and oleic acid (OA) were in-situ synthesized in a sol-gel process and then were used to prepare polypropylene (PP) composites to enhance their impact toughness.Effects of types of surface modifiers and contents of KH570-modified SiO2 particles on tensile,flexural and impact properties,as well as heat resistance and crystallization behavior of the composites were investigated.The results indicated that the modification effect of KH570-modified SiO2 particles on PP is better than that of OA-modified ones.The composites achieved the optimum comprehensive properties with the addition of 4 wt ％ KH570-modified SiO2 particles.Their tensile strength kept a stable value in comparison with pure PP,whereas their elastic modulus,flexural strength,flexural modulus and impact strength increased by 46 ％,15 ％,23 ％ and 14 ％,respectively.关键词
聚丙烯/复合材料/二氧化硅/表面改性Key words
polypropylene/composite/silicon dioxide/surface modification分类
管理科学引用本文复制引用
罗建新,张春燕,刘勇,黄亚奥,陈维..聚丙烯／改性SiO2复合材料的制备与性能研究[J].中国塑料,2017,31(10):49-54,6.基金项目
湖南省教育厅科学研究项目(16C0430)、湖南工学院大学生研究性学习和创新性实验计划项目和湖南省重点建设学科(湘教发[2011]76号) （16C0430）
