Soft,stretchable thermal protective substrates for wearable electronics  

作　　者：Shuang Nie Min Cai Huang Yang Liyin Shen Suhao Wang Yang Zhu Jizhou Song 

机构地区：[1]Department of Rehabilitation Medicine,The First Affiliated Hospital College of Medicine,Zhejiang University,Hangzhou 310027,China [2]Department of Engineering Mechanics,Soft Matter Research Center,and Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province,Zhejiang University,Hangzhou 310027,China [3]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China [4]State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou 310003,China

出　　处：《npj Flexible Electronics》2022年第1期401-409,共9页npj-柔性电子（英文）

基　　金：support of the National Natural Science Foundation of China (Grant Nos,U20A6001 and 11872331);National Key Research and Development Program of China (Grant No,2019YFE0117400);Zhejiang University K.P.Chao’s High Technology Development Foundation.

摘　　要：Wearable electronics have continued to attract the attention of researchers and clinicians due to their great potential in medical applications.During their operations,the undesired heating may cause thermal discomfort or damage to skin.Seeking materials and structures for advanced thermal protection has become an urgent issue.Here,we report a soft,stretchable thermal protective substrate for wearable electronics with remarkable thermal insulating performance,mechanical compliance and stretchability.The thermal protective substrate features a composite design of the widely used polymeric material polydimethylsiloxane with embedded heat absorbing microspheres,consisting of phase change materials encapsulated inside the resin shell.Experimental and numerical studies show that the thermal protective substrate could be subjected to complex deformations over 150% and could reduce the peak skin temperature increase by 82% or higher under optimizations.In vivo demonstration of this concept on the mouse skin illustrates its unusual thermal protection capability for wearable thermal management.

关 键 词：WEAR protective THERMAL 

分 类 号：TB383[一般工业技术—材料科学与工程]