UV curable PUA ink with polymerizable surfactant-enhanced Ag@PPy for fabricating flexible and durable conductive coating on the surface of cotton fabric

• Published in: Progress in organic coatings Vol. 174; p. 107239
• Main Authors: Guo, Xiutian, Yao, Jiale, Ji, Fengxian, Wang, Rui, Hao, Longyun
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.01.2023; Elsevier BV
• Subjects: Ag@PPy; Coating; Conductive textile; Contact angle; Cotton; Cotton fabrics; DNS-86; Durability; Flexibility; Polymerization; Polypyrroles; Polyurethane resins; Silver; Sodium dodecyl sulfate; Structural integrity; Surfactants; Ultraviolet radiation; UV curing; DNS-86; Durability; UV curing; Conductive textile; Ag@PPy; Flexibility
• ISSN: 0300-9440; 1873-331X
• DOI: 10.1016/j.porgcoat.2022.107239

In this study, a stable silver@polypyrrole (Ag@PPy) composite was prepared with the help of sodium dodecyl sulfate (SDS) and polymerizable surfactant ammonium allyloxynonylphenol ethoxylate (DNS-86). It was then combined with polyurethane acrylate (PUA) to prepare a conductive ink and applied on the surface of cotton fabric. By an energy-saving and sustainable UV curing method, the ink was effectively fixed to fabricate flexible and durable textile. The effects of DNS-86 on the properties of Ag@PPy composite were investigated and the results showed that DNS-86 could reduce its size, make its distribution more uniform and improve its stability. Then, the effects of DNS-86 on the performance of conductive coating on fabric were analyzed by measuring the resistance and water contact angle, revealing that DNS-86 could participate in the UV film-forming reaction of PUA molecules, so as to optimize the film structure for higher conductivity. Finally, the effect of DNS-86 on the flexibility and durability of conductive coating were evaluated. The results indicated that DNS-86 could improve the structural integrity and toughness of PUA film, enhance the adhesion between conductive coating and cotton surface, and make it more resistant to various environmental erosions. •Ag@PPy nanoparticles were successfully prepared in aqueous solution.•DNS-86 improved the dispersibility and stability of Ag@PPy.•DNS-86 participated the film-forming of PUA resin in ink during UV curing.•DNS-86 enhanced the flexibility and durability of conductive coating on fabric.