The possibility of printing conductive ink on textiles is progressively researched due to its potential bene-fits in manufacturing functional wearable electronics and improving wearing comfort.However,few stud-ies have reported the effect of conductive ink formulation on electrodes directly screen-printed on flexible substrates,especially printing UV curable conductive ink on common textiles.In this work,a novel UV curable nano-silver ink with short-time curing and low temperature features was developed to manu-facture the fully flexible and washable textile-based electrodes by screen printing.The aim of this study was to determine the influence of ink formulation on UV-curing speed,degree of conversion,morphology and electrical properties of printed electrodes.Besides,the application demonstration was highlighted.The curing speed and adhesion of ink was found depending dominantly on the type of prepolymer and the functionality of monomer,and the type of photoinitiator had a decisive effect on the curing speed,degree of double bond conversion and morphology of printed patterns.The nano-silver content is key to guarantee the suitable screen-printability of conductive ink and therefore the uniformity and high con-ductivity of textile-based electrodes.Optimally,an ink formulation with 60 wt％nano-silver meets the potential application requirements.The electrode with 1.0 mm width showed significantly high electri-cal conductivity of 2.47×106 S/m,outstanding mechanical durability and satisfactory washability.The high-performance of electrodes screen-printed on different fabrics proved the feasibility and utility of UV curable nano-silver ink.In addition,the application potential of the conductive ink in fabricating elec-tronic textiles(e-textiles)was confirmed by using the textile-based electrodes as the cathodes of silver-zinc batteries.We anticipate the developed UV curable conductive ink for screen-printing on textiles can provide a novel design opportunity for flexible and wearable e-textile applications.

Hong Hong;Lihong Jiang;Huating Tu;Jiyong Hu;Kyoung-Sik Moon;Xiong Yan;Ching-ping Wong

Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China;School of Materials Science and Engineering,Georgia Institute of Technology,Atlanta,GA 30332,United States;Key Laboratory of High Performance Fibers&Products,Ministry of Education,Donghua University,Shanghai 201620,China

材料科学技术（英文版）

[1]Hong Hong;Lihong Jiang;Huating Tu;Jiyong Hu;Kyoung-Sik Moon;Xiong Yan;Ching-ping Wong-.Rational design and evaluation of UV curable nano-silver ink applied in highly conductive textile-based electrodes and flexible silver-zinc batteries)[J].材料科学技术（英文版）,2022(06):294-307

facture,washable,prepolymer,Optimally

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