Stretchable,transparent and multifunctional PVC-gel heater:a novel approach to skin-mountable,wearable thermal devices  

作　　者：Minki Kim Minjae Cho Chongyoung Chung Ki-Uk Kyung 

机构地区：[1]Department of Mechanical Engineering,Korea Advanced Institute of Science and Technology(KAIST),Daejeon,34141,Republic of Korea

出　　处：《npj Flexible Electronics》2024年第1期292-303,共12页npj-柔性电子(英文)

基　　金：supported by Samsung Science and Technology Foundation(No.SRFC-IT2102-04).

摘　　要：Electric heaters based on functional materials and innovative designs have been developed for various applications.In this paper,we propose a soft dielectric heater(SDH)using polyvinyl chloride-gel(PVCgel)as the dielectric heater and hydrogel as stretchable electrodes.Under an AC voltage,the leakage current in the PVC-gel leads to continuous injection and discharge of charges,causing the polarized plasticizers and flexible PVC chains to vibrate and collide,thereby generating heat through dielectric heating.Furthermore,the SDH generates a uniform temperature distribution even under strains up to 400%.Besides,high transmittance over 86%across the visible range renders it suitable for wearable or skin-mountable heaters from an esthetic viewpoint.Its capacitor-like structure achieves a scalable design,enabling extension from a singular cell to a row/column addressable and pixelated array of heaters.The 5×5 SDH array can deliver varied thermal information and sensations while maintaining performance even when stretched.

关 键 词：MOUNT dielectric wear 

分 类 号：TN9[电子电信—信息与通信工程]