碳纳米管的等离子体功能化及其聚苯胺复合材料的制备  

Functionization of carbon nanotubes by plasma and their compositing with polyaniline

作　　者：张捷[1,2] 杨俊和[2] 贾润萍[3] 王霞[2] 黄婕[1] 

机构地区：[1]华东理工大学化工学院,上海200237 [2]上海理工大学材料学院,上海200093 [3]上海应用技术学院材料工程系,上海200233

出　　处：《新型炭材料》2010年第4期291-296,共6页New Carbon Materials

基　　金：国家自然科学基金(50273020;50473064;50773040);上海科委资助项目(065212048);上海市重点学科资助项目(P1502)~~

摘　　要：采用等离子体技术对碳纳米管(CNTs)功能化,而后与苯胺原位聚合制备CNTs/聚苯胺(PANI)复合材料。电导测试结果表明:相对于CNTs的强酸氧化法(0.936S/cm),等离子体处理更易获得高电导率的复合材料(2.86S/cm)。相应的最佳等离子体工艺参数为:处理功率50W、时间5min、压力0.08Torr、温度110℃、磁场线圈电流0.08A及电极距离5cm。SEM观察发现:聚合后,CNTs的光滑表面转变成粗糙结构,同时管径增加了80nm。XRD、FTIR及Raman结果均证实:PANI被均匀包覆于CNTs的表面。Carbon nanotubes （CNTs） were modified by Ar plasma followed by O2 etching in a plasma assisted chemical vapor deposition apparatus. The modified CNTs were polymerized with aniline in a HCl aqueous solution to produce CNT/polyaniline composites. The CNTs modified by the plasma have a higher conductivity （2.86S/cm） than those modified by acid oxidation （0.936S/cm）. The optimum plasma parameters were power （50W）, system pressure （0.08torr）, treatment time （5min）, temperature （110℃）, distance between two electrodes （5cm） and current of magnetic loop （0.8A）. SEM results revealed that the smooth surface of the CNTs became rough after the plasma modification and the diameters increased by about 80 nm. FTIR, Raman and XRD all revealed the presence of polyaniline on CNT surfaces.

关 键 词：CNTS 等离子体 PANI 原位聚合 复合材料 

分 类 号：TB383.1[一般工业技术—材料科学与工程]