PVDF基复合材料的制备及热学性质研究  

Study on preparation and thermal properties of PVDF composites

作　　者：童婷[1] 张营堂[1] 马飞[1] 

机构地区：[1]陕西理工学院材料科学与工程学院,陕西汉中723000

出　　处：《陕西理工学院学报（自然科学版）》2014年第6期1-5,18,共6页Journal of Shananxi University of Technology:Natural Science Edition

基　　金：电力设备电气绝缘国家重点实验室开放课题项目(EIPE11207);黑龙江省电介质工程国家重点实验室培育基地开放课题项目(DE2011A01)

摘　　要：采用溶液法制备了以聚偏氟乙烯(PVDF)为基体,多壁碳纳米管(MWNTs)和纳米二氧化锆(Zr O2)为填料的纳米复合材料。利用扫描电子显微镜(SEM)、差示扫描量热法(DSC)和X射线衍射仪(XRD)对复合材料的表面形貌、热学行为和结晶度分别进行了观察和研究。结果表明,多壁碳纳米管和纳米二氧化锆对材料的热力学行为都有影响。填料含量较少时能起到诱导结晶作用,随着纳米填料粒子含量的增加异相形核作用有所下降。当两种填料同时加入时,其诱导结晶作用增强。Polyvinylidene fluoride（ PVDF）nanocomposites were prepared via a solution method using mult-walled carbon nanotubes（ MWNTs）and nano-zirconia（ ZrO2 ）as fillers. The morphology,the crystallini-ty and the thermal behavior were investigated by scanning electron microscopy（ SEM ）,differential scanning calorimetry（DSC）and X-ray diffraction（ XRD）respectively. The results indicate that both MWNTs and ZrO2 exert effect on the thermodynamic performance of PVDF nanocomposites. When the content of MWNTs and ZrO2 is low,the filler can play an important role in inducing crystallization. With the concentration of MWNTs and ZrO2 increasing,the heterogeneous nucleation rate decreases. When the two kinds of fillers are added simultaneously,the effect on the induced crystallizing becomes stronger.

关 键 词：聚偏氟乙烯 多壁碳纳米管 纳米二氧化锆 

分 类 号：TB333.23[一般工业技术—材料科学与工程]