Wearable heater composites comprising traditional Hanji cellulose fibers coated with graphene,silver nanowires,and PEDOT:PSS via scalable supersonic spraying  

作　　者：Woojin Lim Ashwin Khadka Byeong-Yeop Kim Chanwoo Park Ali Aldalbahi Govindasami Periyasami Bhavana Joshi Sam S.Yoon 

机构地区：[1]School of Mechanical Engineering,Korea University,Seoul 136-713,Republic of Korea [2]Department of Chemistry,College of Science,King Saud University,Riyadh 11451,Saudi Arabia

出　　处：《Journal of Materials Science & Technology》2023年第33期27-36,共10页材料科学技术（英文版）

基　　金：financially supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(nos.NRF-2020R1A5A1018153,NRF-2021R1A2C2010530,and 2022M3J1A106422611);The authors acknowledge King Saud University,Riyadh,Saudi Arabia,for funding this work through Researchers Supporting Project number(RSP2023R30).

摘　　要：Traditional Korean Hanji paper and cotton fabric were introduced as flexible substrates in the fabrication of graphene-coated heaters.Silver nanowires and PEDOT:PSS were added to increase the electrical conductivity of the heaters,thereby enhancing their heating performance.The optimal concentrations of silver nanowires and PEDOT:PSS with respect to that of graphene were identified.These active materials were deposited on flexible Hanji/cotton and non-flexible alumina substrates using supersonic spraying.The proposed Hanji-and cotton-based heaters were light,wearable,stretchable,skin-friendly,and biodegradable.The unyielding alumina-based heater exhibited the highest heating temperature of 275°C at 13 V.Wearable heater bendability and stretchability were tested considering multiple bending and stretching cycles.Moreover,water boiling and fabric drying were successfully performed using the alumina-based heater.The supersonic spraying deposition technique was used to produce writable and patternable heaters.

关 键 词：GRAPHENE Silver nanowires PEDOT:PSS Supersonic spraying Hanji Wearable heater 

分 类 号：TM53[电气工程—电器]