PP/碳纳米管复合材料的制备及电性能  

Electrical Property of PP/Carbon Nanotubes Nanocomposites

作　　者：王俊[1] 王平华[1] 唐龙祥[1] 邱志国[1] 张奎[1] 屈龙[1] 范宝林[1] 张建堂[1] 

机构地区：[1]合肥工业大学化学工程学院,安徽合肥230009

出　　处：《高分子材料科学与工程》2011年第1期138-141,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(50573016)

摘　　要：采用原子转移自由基(ATRP)活性聚合方法在多壁碳纳米管(MWNT)表面接枝丙烯酸丁酯聚合物(PBA),并以此对聚丙烯(PP)进行改性。红外光谱(FT-IR)及透射电子显微镜(TEM)测试结果表明,采用ATRP法成功地将PBA接枝到多壁碳纳米管(MWNT)表面。对PP/MWNT复合材料电性能研究表明,MWNT-PBA的添加比MWNT-COOH更能降低复合材料的电阻率。MWNT-PBA的加入可使PP从绝缘材料转变为抗静电材料。MWNT-PBA和MWNT-COOH加入PP都能提高材料的电性能,而MWNT-PBA比MWNT-COOH的作用更加明显。Polybutyl acrylate（PBA） was grafted onto the surfaces of multiwalled carbon nanotubes（MWNT） via atom transfer radical polymerization（ATRP）,and MWNT-PBA was applied to modify polypropylene（PP）.The results of Fourier transform infrared spectrum（FT-IR） and transmission electron microscopy（TEM） show that the PBA have been grafted onto the surfaces of MWNT successfully.The electrical property of PP/MWNT nanocomposites was studied.The results indicate that in comparison with MWNT-COOH MWNT-PBA reduces the resistivity more apparently.The PP was changed from insulation material to antistatic material for the adding of MWNT-PBA.Moreover both of MWNT-PBA and MWNT-COOH could increase the electrical capability of the nanocomposites,in comparison with MWNT-COOH MWNT-PBA is more apparently.

关 键 词：聚丙烯 多壁碳纳米管 原子转移自由基 聚丙烯酸丁酯 体积电阻 表面电阻 

分 类 号：TB383[一般工业技术—材料科学与工程]