静电纺丝制备SiO_2短纤维及PP/SiO_2短纤维复合材料冲击性能的研究  

Preparation of SiO_2 Short Fiber via Electrospinning and Study on Impact Property of PP/SiO_2 Composite

作　　者：朱元超[1,2,3] 温世鹏[1,2,3] 张法忠[1,2,3] 张立群[1,2,3] 刘力[1,2,3] 

机构地区：[1]北京化工大学碳及功能高分子材料教育部重点实验室,北京100029 [2]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [3]北京化工大学教育部纳米材料重点实验室,北京100029

出　　处：《塑料工业》2010年第4期82-85,90,共5页China Plastics Industry

基　　金：长江学者和创新团队发展计划资助基金(IRT0807);国家十一五支撑项目(2006BAE03B)

摘　　要：采用静电纺丝技术,结合TEOS的溶胶-凝胶反应制备出了直径为500 nm的表面布满颗粒的SiO2短纤维(n-SF)。短纤维与聚丙烯经过螺杆混合,注塑后得到PP/SiO2短纤维复合材料。通过SEM表征发现,SiO2短纤维在PP基体中的分散均匀,界面良好;通过DSC、XRD表征,SiO2短纤维的加入使PP的结晶速率提高,β晶用量变化;通过PLM照片发现复合材料晶体尺寸较纯聚丙烯减小;冲击测试表明,SiO2短纤维的用量为0.5份时,冲击性能较纯PP相比提高了21.6%。This paper presented a preparation of studded SiO2 short fiber （n-SF） with the diameter of 500 nm via electrospinning combined with sol-gel of TEOS. n-SF/PP composite was got after the injection molding. The interlace of n-SF in PP matrix was excellent and distributed even by SEM characterization. The DSC and XRD characterization demonstrated that the erystal velocity of PP increased and β crystalloid content varied. The crystallity of n-SF/PP composite decreased in size comparing with neat PP via PLM investigation. The impact test experiment showed that the impact mechanical property increased by 21.6% than neat PP when SiO2 short fiber content was 0.5 phr.

关 键 词：静电纺丝 SiO2短纤维 聚丙烯 抗冲击性能 

分 类 号：TQ340.64[化学工程—化纤工业]