HIGHLY DISPERSED MULTI-WALLED CARBON NANOTUBES IN WATER/ETHANOL AND ITS APPLICATION FOR PVA COMPOSITE

查看全文 作　　者：[1]X.Y.Tao;[2]J.M.Xu;[1]F.Liu;[1]G.L.Xu

机构地区：[1]InstituteofMaterialsPhysicsandMicrostructures,DepartmentofMaterialsScienceandEngmeering,ZhejiangUniversity,Hangzhou310027,China;[2]CollegeofElectronicInformation,HangzhouDianziUniversity,Hangzhou310018,China

出　　处：《Acta Metallurgica Sinica(English Letters)》索引2005年第18卷第3期,共8页

基　　金：This work was supported by the National Natural Science Foundation of China(No.50172043);National High Technical Research and Development Programme of China(No.2002AA334020);National Key Basic Research and Development Programme of China(No.G20000264-06). 摘　　要：Two carboxylation processes were carried out to modify multi-walled carbon nanot ube bundles (m-MWNTs). The results showed that both of the m-MWNTs could be high ly dispersed in water with the concentration up to 25 and 15mg/mL in ethanol wit hout obvious deposition or conglomeration over 6 months. FTIR, Raman, TGA and TE M characterizations of the m- MWNTs showed that hydroxyl and carboxyl groups hav e been attached with MWNTs, and that the nanotube structure was only damaged a l ittle after modification treatments in mixed acids over 24h. Above prepared nano tube suspensions in water were successfully used as a filler of thermoplastic PV A composite to enhance its electrical conductivity. The results showed that the addition of m-MWNTs greatly improved the conductivity and the threshold of mass fraction was about 5wt%. The results also proved that purification process was n ot needed because of high purity of the raw MWNTs prepared in our group. 关键词：碳纳米管聚乙烯乙醇复合材料导电性薄膜生长

相关文献

参考文献（24）
引证文献（2）
耦合文献（0）

参考文献(24)

引证文献(2)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

HIGHLY DISPERSED MULTI-WALLED CARBON NANOTUBES IN WATER/ETHANOL AND ITS APPLICATION FOR PVA COMPOSITE

参考文献(24)

引证文献(2)

用户提示