Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (04): 90-95.doi: 10.13475/j.fzxb.20180203706

• Dyeing and Finishig & Chemicals • Previous Articles     Next Articles

Preparation of composite conductive cotton fabric based on carbon nanotubes by layer-by-layer self-assembly

FAN Jingjing1,2, WANG Hongbo1,2(), FU Jiajia1,2, WANG Wencong1,2   

  1. 1. Jiangsu Engineering Technology Research Center of Functional Textiles, Jiangnan University,Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Eco-Textiles(Jiangnan University),Ministry of Education, Wuxi, Jiangsu 214122, China
  • Received:2018-02-22 Revised:2019-01-11 Online:2019-04-15 Published:2019-04-16
  • Contact: WANG Hongbo E-mail:wxwanghb@163.com

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Abstract:

In order to develop conductive cotton fabrics and improve the conductivity of the cotton fabrics, carboxylated carbon nanotubes and aminated carbon nanotubes were used in conductive finishing of cotton fabrics by layer-by-layer self-assembly. Using the conductivity as an index, the concentration of carboxylated carbon nanotubes and aminated carbon nanotubes, the assembly time and the assembly layer number were optimized by single factor analysis. Under the optimized process conditions, the surface morphology, chemical structure and washing fastness of the composite conductive cotton fabrics were investigated. The results show that when the concentration of carboxylated carbon nanotubes and aminated carbon nanotubes is 1.5 mg/mL respectively, the assembly time is 15 min and the assembly number is 8, the conductivity of the composite conductive cotton fabric is 3.42 S/m, proving that the composite conductive cotton fabric has good conductivity. The conductivity can reach 2.88 S/m after washing for 10 times, showing that the composite conductive cotton fabric has good washing fastness.

Key words: carboxylated carbon nanotube, aminated carbon nanotube, layer-by-layer self-assembly, conductivity, cotton fabric

CLC Number: 

  • TS195.5

Fig.1

Zeta potential of carbon nanotube dispersions at different pH values"

Fig.2

Conductivity of cotton fabric with different MWNTs-COOH concentration"

Fig.3

Conductivity of cotton fabric with different MWNTs-NH2 concentration"

Fig.4

Conductivity of cotton fabric with different assembly time"

Fig.5

Conductivity of cotton fabric with different assembly bilayers"

Tab.1

Thickness of cotton fabric with different assembly bilayers"

组装层数 织物厚度/mm
2 0.221
4 0.225
6 0.228
8 0.234
10 0.232

Fig.6

SEM images of original sample and composite conductive cotton fabric with different assembly bilayers(×5 000). (a) Original cotton fabric;(b)2 bilayers;(c)4 bilayers; (d)6 bilayers;(e)8 bilayers;(f)10 bilayers"

Fig.7

Infrared spectra of original sample and composite conductive cotton fabric"

Fig.8

Conductive effects of composite conductive cotton fabric with different assembly bilayers after 5 and 10 times of washing"

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