文献类型：期刊文献

英文题名：Continuous manufacturing of solvent-driven poly(vinyl alcohol)-based flexible electrodes with vias conductive gels for sensitive skin-integrated electronics

作者：Sha, Dongyong[1,2];Ding, Ding[1,2];Tang, Shuaimin[1,2];Zhang, Jianxing[3];Tang, Xuan[3];Liu, Changsheng[1,2];Ling, Xiaofeng[3];Sun, Lili[1,2];Yuan, Yuan[1,2]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Engn Res Ctr Biomed Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：516

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20252218502464);WOS:【SCI-EXPANDED(收录号:WOS:001505090700022)】；

基金：The authors wish to express their gratitude to the financial supports from the National Key Research and Development Program of China (No.2022YFB3804300) and (No.2022YFC2405702) , Program of Shanghai Academic/Technology Research Leader (22XD1433900) , Frontiers Science Center for Materiobiology and Dynamic Chemistry (No.JKVD1211002) , and Chinese Academy of Sciences-WEGO Research and Development Program ( [2023] 005) , and the National Natural Science Foundation of China (No.32271401) .

语种：英文

外文关键词：Solvent-change; Continuous manufacturing; Special structures; Poly(vinyl alcohol); Skin-integrated electronics

摘要：Flexible integrated electronics enable precise health monitoring for body surface applications. However, flexible substrate fabrication and conductive material deposition often require specialized equipment and surface treatments, and assembly of gels for signal acquisition and artifact elimination and electrodes may cause interface mismatch. This paper presents a novel, cost-effective continuous manufacturing process for flexible films that leverages the solubility of poly(vinyl alcohol) (PVA), followed by in situ electrode printing and finally integration of via-hole conductive gels. A flexible film is prepared by coating a polytetrafluoroethylene (PTFE) tape platform with PVA-dimethyl sulfoxide (DMSO) solution and quenching it with ethanol, resulting in excellent processability and mechanical self-fixation (101.4 kPa). The film demonstrates stable thermal properties (up to 140 degrees C), and its hydroxyl-rich surface facilitates aerosol printing of conductive circuits without additional treatment. Conductive gels with via-hole structures are designed to bridge electrodes using a deep eutectic solvent (DES) as the solvent. This design achieves excellent adhesion (102 kPa) and biocompatibility, enabling efficient signal collection and transmission. The poor solubility of PVA in the DES ensures film integrity, preserving device precision. These methods improve fabrication efficiency, reduce costs, simplify the assembly process and show promise for applications in surface monitoring, human-machine interfaces, and electronic skin.