Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (8): 95-100.doi: 10.13475/j.fzxb.20180601006

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Influence of plasma treatment on electrical conductivity of polypyrrole/polyester composite yarn

JIANG Shan1, WAN Ailan1,2,3(), MIAO Xuhong1,3, JIANG Gaoming1,3, MA Pibo1,3, CHEN Qing1,3   

  1. 1. Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Textile Fiber Products, Ministry of Education, Wuhan Textile University, Wuhan, Hubei 430200
    3. Key Laboratory of Eco-Textiles(Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122
  • Received:2018-06-01 Revised:2019-03-11 Online:2019-08-15 Published:2019-08-16
  • Contact: WAN Ailan E-mail:wan@jiangnan.edu.cn

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Abstract:

In order to improve the surface adhesion fastness of the conductive polymer polypyrrole (PPy) on the polyester (PET) filament, the sub-vacuum plasma treatment technology was used for surface modification of polyester fiber, and the composite conductive PPy/PET yarns were prepared by in-situ polymerization method. The influence of plasma treatment on the electrical conductivity and durability of PPy/PET composite conductive yarns was investigated. The results show that the tiny concave pits appear on the surface of polyester fiber by the high-energy reactive particle bombardment of sub-vacuum plasma processing, which can effectively improve the surface roughness of the polyester fiber without significant influence on the mechanical properties of the substrate. The continuity and evenness of the PPy thin films was achieved by the sub-vacuum plasma treatment. The adhesion between PPy thin film and polyester yarns, the electrical conductivity and durability of composite conductive yarns were improved by the sub-vacuum plasma treatment. The electrical conductivity of composite conductive PPy/PET yarns before and after sub-vacuum plasma treatment is 0.67 and 1.16 S/cm, respectively.

Key words: sub-vacuum plasma, in-situ polymerization, composite conductive polypyrrole/polyester yarn, electrical conductivity, adhesion fastness

CLC Number: 

  • TQ342

Tab.1

Sample processing condition parameters"

试样
编号		 处理条件 试样
编号		 处理条件
1# 未处理 9# 原位聚合
2# 220 W、4 min 10# 220 W、4 min+原位聚合
3# 300 W、4 min 11# 300 W、4 min+原位聚合
4# 380 W、4 min 12# 380 W、4 min+原位聚合
5# 460 W、4 min 13# 460 W、4 min+原位聚合
6# 300 W、6 min 14# 300 W、6 min+原位聚合
7# 300 W、8 min 15# 300 W、8 min+原位聚合
8# 300 W、10 min 16# 300 W、10 min+原位聚合

Fig.1

Effect of plasma treatment time on electrical conductivity and weight gain of composite conductive yarns"

Fig.2

Effect of plasma treatment power on electrical conductivity and weight gain of composite conductive yarns"

Fig.3

SEM images of polyester yarn and composite conductive yarn before and after plasma treatment(×5 000)"

Tab.2

Mechanical properties of polyester yarn under different treatment conditions"

试样
编号		 断裂
强力/
cN		 断裂
强度/
(cN·tex-1)		 断裂
伸长
率/%		 试样
编号		 断裂
强力/
cN		 断裂
强度/
(cN·tex-1)		 断裂
伸长
率/%
1# 322.15 38.81 24.62 9# 327.43 39.45 23.21
2# 320.02 38.56 22.65 10# 344.04 41.45 20.48
3# 319.10 38.45 23.54 11# 343.20 41.35 20.81
4# 314.43 37.88 23.25 12# 331.48 39.93 21.16
5# 308.84 37.21 23.18 13# 324.94 39.15 20.09
6# 317.47 38.25 22.37 14# 324.12 39.05 21.29
7# 316.15 38.09 22.74 15# 330.61 39.83 22.95
8# 307.91 37.10 23.48 16# 326.40 39.33 21.56

Fig.4

Effect of plasma treatment power on durability of composite conductive yarn"

Fig.5

Effect of plasma treatment time on durability of composite conductive yarn"

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