Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (04): 91-97.doi: 10.13475/j.fzxb.20190605907

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Effect of polyvinyl alcohol on durability of polyaniline conductive layer on poly(p-phenylene terephthamide) yarn surface

HU Chengye1,2, MIAO Runwu1,2, HAN Xiao1,2, HONG Jianhan1,2(), GIL Ignacio3   

  1. 1. College of Textile and Garment, Shaoxing University, Shaoxing, Zhejiang 312000, China
    2. Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing, Zhejiang 312000, China
    3. Electronic Engineering Department, Polytechnic University of Catalonia, Terrassa, Barcelona 08222, Spain
  • Received:2019-06-27 Revised:2020-01-10 Online:2020-04-15 Published:2020-04-27
  • Contact: HONG Jianhan E-mail:jhhong@usx.edu.cn

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Abstract:

In order to improve the bonding fastness between polyaniline (PANI) conductive layer and substrate materials, poly(vinyl alcohol )(PVA) was used as the copolymer to fabricate PANI/PVA conductive layer on the surface of poly(p-phenylene terephthamide) (PPTA) yarns by a continuous method based on in-situ polymerization technique, and conductive PPTA/PANI/PVA composite yarns were obtained. The structure and properties of conductive composite yarns were analyzed, and the influence of PVA on washing resistance and wear resistance of PANI conductive layer was studied. The results show that appropriate amount of PVA is helpful to improve the structure regularity and conductivity of the conductive layer. With the increase of PVA mass ratio, the conductivity of the conductive composite yarns first increases and then decreases. When the mass ratio of PVA to aniline is 4.30%, the conductivity of the conductive composite yarn is the highest, reaching (1.120±0.198) S/cm .The addition of PVA and the increase of its mass ratio contribute to the improvement of the washing resistance and wear resistance of PANI conductive layer under the action of small external force.

Key words: in-situ polymerization method, poly(p-phenylene terephthamide), polyaniline, poly(vinyl alcohol), electrical conductivity, durability, conductive yarn

CLC Number: 

  • TQ342.83

Fig.1

Preparation principle of conductive PPTA/PANI/PVA composite yarn"

Fig.2

Surface morphology of PPTA yarn before and after conductive treatment. (a)Untreated PPTA yarn;(b)1#;(c)2#;(d)3#;(e)4#;(f)5#;(g)6#;(h)7#;(i)8#"

Fig.3

Infrared spectra of PPTA composite yarn before and after conductive treatment"

Fig.4

Conductivity of PPTA conductive composite yarns with different PVA mass ratios"

Fig.5

TG curves of PPTA composite yarns before and after conductive treatment"

Fig.6

Conductivity of PPTA conductive composite yarn at different washing time"

Fig.7

Surface SEM images of PPTA conductive composite yarns after washing for 60 min"

Fig.8

Effect of friction by cotton on conductivity of PPTA conductive composite yarn"

Fig.9

Effect of friction by sandpaper on conductivity of PPTA conductive composite yarn"

Fig.10

Effect of friction by sandpaper on morphology of PPTA conductive composite yarn"

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