A Fast and Room-temperature Self-healing Thermal Conductive Polymer Composite

作     者：De-Wei Yue Hong-Qin Wang Han-Qing Tao Peng Zheng Cheng-Hui Li Jing-Lin Zuo De-Wei Yue;Hong-Qin Wang;Han-Qing Tao;Peng Zheng;Cheng-Hui Li;Jing-Lin Zuo

作者机构：State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringNational Laboratory of MicrostructuresCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210023China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2021年第39卷第10期

页      面：1328-1336,I0008页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.21631006 and 21771100) the Fun dame ntal Research Funds for the Cen tral Universities(No.020514380212) 

主　　题：Self-healing Thermal conductive Infrared thermal imaging 

摘      要：Thermal conducting materials may be damaged during long-term use,resulting in the increase of thermal resistance and therefore inefficient heat *** introduction of self-healing ability may solve this problem,but the realization of fast and room-temperature self-healing in thermal conducting composites is quite ***,we choose a flexible poly(dimethylsiloxane)polymer material(PDMS-COOH)as the matrix and graphene nanosheets as the thermal conductive filler to prepare a new kind of thermal conductive polymer composite(PDMS-COOH-CG)that can quickly self-heal at room *** thermal conductivity of PDMS-COOH-CG10 with 10%of graphene content is 0.48 W·m^(-1)·K^(-1),which is 16 times that of PDMS-COOH(0.03 W·m^(-1)·K^(-1)).At room temperature,self-healing efficiency of PDMS-COOH-CG10 based on tensile strength can be 53.8%for 30 s and 84.6%for 24 *** infrared thermal imaging dipicted that after 2 min of self-healing at room temperature,the thermal conduction temperature near the damage was basically restored to the level of the pristine sample.