PP/纳米SiO_2复合材料凝聚态结构的研究  

Research on Agglomerate Structure of Polypropylene/Nano-SiO_2 Composite

作　　者：石璞[1] 吴宏武[1] 何和智[1] 晋刚[1] 瞿金平[1] 

机构地区：[1]华南理工大学聚合物新型成型装备国家工程研究中心,广州510640

出　　处：《塑料工业》2002年第3期34-36,共3页China Plastics Industry

基　　金：国家 8 63计划资助项目

摘　　要：通过熔融共混法制备了PP/纳米SiO2 复合材料 ,利用扫描电镜观察了纳米SiO2 在PP中的分散效果 ,结果表明 ,纳米SiO2 团聚少 ,分散好。使用差示扫描量热仪和X射线衍射仪研究了PP/纳米SiO2 复合材料的凝聚态结构 ,数据表明 ,分散于PP中的超细SiO2 影响了PP的凝聚态结构 ,使PP的结晶度提高而晶形却变小 ,晶体排列更加紧密。s The PP/Nano SiO 2 composite was made by blending Scanning Electron Microscope(SEM)graph showed that SiO 2 well dispersed in PP The Differential Scanning Thermogram(DSC)and X Ray Diffractin(XRD) were used to analyze the agglomerate structure And the result showed that the crystal speed and the degree of crystallization of PP were increased,the assemble of polypropylenes crystals were more compact,while the volume of polypropylenes crystal was decreased compared with pure polypropylene A theory foundation was proposed about the mechanism of polypropylene reinforced and toughened by Nano SiO 2

关 键 词：复合材料 凝聚态 结构 研究 聚丙烯 熔融共混 纳米二氧化硅 

分 类 号：TB332[一般工业技术—材料科学与工程]