Flexible and elastic thermal regulator for multimode intelligent temperature control
作者机构：Tianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjinP.R.China MOE Key Laboratory of Thermo-Fluid Science and EngineeringSchool of Energy and Power EngineeringXi’an Jiaotong UniversityXi’anP.R.China
出 版 物：《SusMat》 (可持续发展材料（英文）)
年 卷 期：2023年第3卷第6期
页 面：843-858页
核心收录：
学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：National Key R&D Program of China,Grant/Award Number:2022YFB3805702 National Natural Science Foundation of China,Grant/Award Numbers:52173078,52130303,51973158,51803151,51973152,52303101,52327802 Science Foundation for Distinguished Young Scholars in Tianjin,Grant/Award Number:19JCJQJC61700 Young Elite Scientists Sponsorship Program by CAST,Grant/Award Number:2022QNRC001
主 题：intelligent temperature control liquid crystal elastomer liquid metal thermal regulator thermomechanical coupling
摘 要：As nonlinear thermal devices,thermal regulators can intelligently respond to temperature and control heat flow through changes in heat transfer capacities,which allows them to reduce energy consumption without external ***,current thermal regulators generally based on high-quality crystallinestructure transitions are intrinsically rigid,which may cause structural damage and functional failure under mechanical strain;moreover,they are difficult to integrate into emerging soft electronic *** this study,we develop a flexible,elastic thermal regulator based on the reversible thermally induced deformation of a liquid crystal elastomer/liquid metal(LCE/LM)composite *** adjusting the crosslinking densities,the LCE foam exhibits a high actuation strain of 121%with flexibility below the nematic–isotropic phase transition temperature(TNI)and hyperelasticity above *** incorporation of LMresults in a high thermal resistance switching ratio of 3.8 over a wide working temperature window of 60◦C with good cycling *** feature originates from the synergistic effect of fragmentation and recombination of the internal LM network and lengthening and shortening of the bond line ***,we fabricate a“grid windowutilizing photic-thermal integrated thermal control,achieving a superior heat supply of 13.7℃ at a light intensity of 180mW/cm^(2)and a thermal protection of 43.4℃at 1200 mW/cm^(2).The proposed method meets the mechanical softness requirements of thermal regulatormaterials with multimode intelligent temperature control.
维普期刊数据库