Fabrication of MWNTs/nylon conductive composite nanofibers by electrospinning

被引：70

作者：

Jeong, J. S. ^{[1
]}

Jeon, S. Y. ^{[1
]}

Lee, T. Y. ^{[1
]}

Park, J. H. ^{[1
]}

Shin, J. H. ^{[1
]}

Alegaonkar, P. S. ^{[1
]}

Berdinsky, A. S. ^{[1
]}

Yoo, J. B. ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Ctr Nanotubes & Nanostructured Composites, Suwon 440736, South Korea

来源：

关键词：

MWNT; electrospinning; composite; nylon;

D O I：

10.1016/j.diamond.2006.08.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MWNT/nylon 6, 6 composite nanofibers were fabricated using an electrospirming method, and the electrical properties were examined as a function of the filler concentration. Initially, the pristine, purified MWNTs were treated with a 3:1 mixture of concentrated H2SO4/HNO3 to introduce carboxyl groups onto the MWNT surface. The carboxylated MWNTs were then treated with thionyl chloride and an ethylenediamine solution for amide functionalization. FT-IR spectroscopy was used to examine the functionalization of the MWNTs. Nylon 6, 6 is readily soluble in formic acid. Therefore, the amide functionalized MWNTs were dispersed in formic acid. The solution remained stable and uniform for more than 40 h. -NH2 termination of the MWNTs improved the dispersion stability of the MWNTs in formic acid. The MWNTs-suspended in a solution of nylon 6, 6 in formic acid was electrospun to obtain the nanofibers. The electrical properties of the nanofibeys were examined as a function of the filler concentration. The results showed that the I-V properties of the nanofiber sheet improved with increasing filler concentration. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1839 / 1843

页数：5

共 19 条

[1]

Bergshoef MM, 1999, ADV MATER, V11, P1362, DOI 10.1002/(SICI)1521-4095(199911)11:16<1362::AID-ADMA1362>3.0.CO

[2]

2-X

[3] Electrospun nonwovens of shape-memory polyurethane block copolymers [J].