摘要
利用固相剪切碾磨方法在常温制备共聚聚丙烯(co-PP)/纳米二氧化硅(SiO2)复合材料,利用SEM、DSC、TGA及力学性能测试等方法研究了未经表面处理的纳米二氧化硅与共聚聚丙烯的界面相互作用。48h十氢萘抽提实验结果表明:采用固相剪切碾磨方法制备的复合材料中co-PP与SiO2之间存在强烈的相互作用,其力学性能比co-PP及用传统直接共混法制备的复合材料高,在SiO2质量含量为5%时其拉伸强度提高11%,缺口冲击强度提高21%。
Solid state shear milling （S^3M） method was used to prepare the nanocomposite of co-polymerized polypropylene（co-PP） and nano-SiO2 particles without surface modification. SEM, DSC,TGA and mechanical properties test were used to study the interfacial interaction between co-PP and SiO2. The experimental results showed that there existed strong interfacial interaction between co-PP and SiO2 in the co-PP/nano-SiO2 composite prepared by S3M which significantly improved the mechanical properties of the composite. With 5 wt% of SiO2 ,the tensile strength and the notched impact strength of co-PP/nano-SiO2 composite prepared by S3M method were increased by 11% and 21% ,respectively,as compared with neat co-PP.
出处
《塑料》
CAS
CSCD
北大核心
2009年第5期5-7,共3页
Plastics
基金
国家自然科学基金资助项目(50673039)
关键词
界面作用
固相剪切碾磨
复合材料
共聚聚丙烯
纳米二氧化硅
interfacial interaction
solid state shear milling
composite
copolymerized polypropylene
nano-SiO2
