Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (10): 115-119.doi: 10.13475/j.fzxb.20201005706

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and properties of hydrophobic conductive polypyrrole coating fabrics

CHEN Ying(), FANG Haoxia   

  1. School of Materials Design and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
  • Received:2020-10-24 Revised:2021-07-15 Online:2021-10-15 Published:2021-10-29

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Abstract:

The hydrophobic conductive polypyrrole(PPy) was synthesized on the surface of contton fabrics to achieve functions, such as conductivity and hydrophobicity, which were regulated by changing the types of dopants with different low surface energy. Morphology, contact angle, conductivity and K/S value were characterized accordingly. Experimental results show that the PPy coated cotton fabrics using sodium lignosulphonate (LGS) as template with 0.025 mol/L perfluorinated octyl sulfonic acid potassium (KPFOS) have the best hydrophobicity, and reaching the superhydrophobic state. PPy treated cotton fabrics using anthraquinone-2-sulfonic acid sodium salt (AQS) as the soft template with 0.01 mol/L dodecyl benzene sulfonic acid (DBSA) doped polypyrrole composites demonstrate best conductivity. The better comprehensive behaviors is achieved for the fabric using AQS and 0.01 mol/L DBSA dopant with the contact angle of 131.2°and conductivity of 61.4 S/cm. Through micromorphology control of the template and doping of the alkyl chain or perfluorinated alkyl chain, PPy coated cotton fabrics with good electrical conductivity and hydrophobic properties can be prepared, but their regulation mechanisms of doping still require further study.

Key words: conductivity, hydrophobicity, polypyrrole, cotton fabric, dopant

CLC Number: 

  • TS101.4

Fig.1

Effect of dopant concentration on conductivity"

Fig.2

Schematic diagram of DBSA doping PPy molecular chain"

Fig.3

Effect of dopant types and concentration on contact angle"

Fig.4

Photograph of fabric surface after rain experiment"

Fig.5

SEM images of PPy coating fabrics (×1 000)"

Fig.6

Rubbing fastness of PPy coating fabrics"

Fig.7

Effect of dopant on K/S value of PPy coating fabrics"

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