碳纳米管/聚苯乙炔复合材料的导电性

复合材料学报, 2006, 23(5): 70-74. doi: 10.3321/j.issn:1000-3851.2006.05.013

碳纳米管/聚苯乙炔复合材料的导电性

李相美 ^1, , 徐学诚 ^2, , 余维 ^3, , 顾英俊 ^4, , 石岩 ^5, , 成荣明 ^6, , 陈奕卫 ^7,

1.华东师范大学,纳米功能材料与器件应用研究中心,上海,200062

2.华东师范大学,纳米功能材料与器件应用研究中心,上海,200062

3.华东理工大学,物理系,上海,200237;华东理工大学,超细材料制备与应用教育部重点实验室,上海,200237

4.华东理工大学,物理系,上海,200237

5.华东师范大学,纳米功能材料与器件应用研究中心,上海,200062

6.华东师范大学,纳米功能材料与器件应用研究中心,上海,200062

7.华东师范大学,纳米功能材料与器件应用研究中心,上海,200062

基金项目: 上海市纳米科技专项基金(0252nm011)

关键词：碳纳米管(CNT) , 聚苯乙炔(PPA) , 电导率 , XRD , 复合材料

Electrical property of carbon nanotubes/polyphenylacetylene composites

用AlCl3作催化剂制备了聚苯乙炔(PPA),用浓H2SO4进行磺化改性,通过共混制得碳纳米管(CNT)/PPA及磺化CNT/PPA复合材料,进行导电性能、XRD等测试.当CNT含量增加时,复合材料的电导率升高,磺化CNT/PPA的导电阈值比CNT/PPA的导电阀值降低了1%,前者达到极限电导率所需CNT的量是后者的10%;分析了随着温度变化影响复合材料电阻变化的因素;XRD测试表明,在CNT界面上的磺化PPA有新的晶型产生.

参考文献

[1]	Ajayan P M.Nanotubes from carbon[J].Chem Rev,1999,99(7):1787-1799.
[2]	Kymakis E,Alexandou I,Amaratungar G A J.Single-walled carbon nanotube-polymer composites:Electrical,optical and structural investigation[J].Synthetic Metals,2002,127(1):59-62.
[3]	Tang B Z,Xu H Y.Preparation,alignment,and optical properties of soluble poly (phenylacetylene)-wrapped carbon nanotubes[J].Macromolecules,1999,32(8):2569-2576.
[4]	Velasco-Santos C,Martinez-Hernandez A L,Fisher F T,et al.Improvement of thermal and mechanical properties of carbon nanotube composites through chemical functionalization[J].Chem Mater,2003,15(23):4470-4475.
[5]	Gong X,Liu J,Baskaran S,et al.Surfactant-assisted processing of carbon nanotube/polymer composites[J].Chem Mater,2000,12(4):1049-1052.
[6]	Lin Y,Rao A M,Sadanadan B,et al.Functionalizing multiplewalled carbon nanotubes with aminopolymers[J].J Phys Chem B,2002,106(6):1294-1298.
[7]	贾志杰,王正元,徐才录.碳纳米管的加入对PMMA强度和导电性能的影响[J].材料开发与应用,1998,13(6):22-26.Jia Zhijie,Wang Zhengyuan,Xu Cailu.Effect of carbon nanotubes on strength and resistivity of PMMA[J].Development and Application of Materials,1998,13(6):22-26.
[8]	Ounaies Z,Wise Park K E,Siochi E J,et al.Electrical properties of single wall carbon nanotube reinforced polyimide composites[J].Composites Science and Technology,2003,63(11):1637-1646.
[9]	Chauvet O,Benoit J M,Corraze B.Electrical,magneto-transport and localization of charge carriers in nanocomposites based on carbon nanotubes[J].Carbon,2004,42(5):949-952.
[10]	王杨勇,井新利,强军锋.聚苯胺/碳纳米管的原位复合[J].复合材料学报,2004,21(3):38-43.Wang Yangyong,Jing Xinli,Qiang Junfeng.In-situ polymerization of polyaniline/carbon nanotube composite[J].Acta Materiae Compositae Sinica,2004,21(3):38-43.
[11]	陈卫祥,涂江平,徐铸德,等.碳纳米管的特性及其高性能的复合材料[J].复合材料学报,2001,18(4):1-5.Chen Weixiang,Tu Jiangping,Xu Zhude,et al.Characteristic of carbon nanotubes and high-quality composites[J].Acta Materiae Compositae Sinica,2001,18(4):1-5.
[12]	Kaiser A B,Flanagan G U,Stewart D M,et al.Heterogeneous model for conduction in conducting polymers and carbon nanotubes[J].Synthetic Metals,2001,117(1):67-73.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网