An Effective Approach for the Preparation of High Performance Thermal Conductive Polymer Composites Containing Liquid Metal

作     者：Xin Chen Xue-Zhong Zhang Yi-Fei Yuan Chuan-Liang Chen Lian-Hu Xiong Qiang Fu Hua Deng Xin Chen;Xue-Zhong Zhang;Yi-Fei Yuan;Chuan-Liang Chen;Lian-Hu Xiong;Qiang Fu;Hua Deng

作者机构：College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu610065China Department of Materials Science and EngineeringSichuan University-Pittsburgh InstituteSichuan UniversityChengdu610065China 

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

年 卷 期：2024年第42卷第7期

页      面：992-1001,I0010页

核心收录：

学科分类：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] 

基　　金：financially supported by the National Key Research&Development Plan(No.2022YFA1205200) 

主　　题：Shear-induced Reprotonation AMFs LM Filler dispersion 

摘      要：The preparation of high-performance thermal conductive composites containing liquid metals(LM)has attracted significant ***,the stable dispersion of LM within polymer solution and effective property contribution of liquid metals remains significant challenges that need to be *** by the properties of the dendritic structure of the tree root system in grasping the soil,“shear-induced precipitation-interfacial reset-reprotonationprocessing strategy is proposed to prepare nanocomposites based on aramid micron fibers(AMFs)with hierarchical dendritic *** to the combination of van der Waals force provided by hierarchical dendritic structure,electrostatic interaction between AMFs and LM,coordinative bonding of―NH to LM,together with interfacial re-setting and multi-step protonation,several features can be achieved through such strategy:conducive to the local filler network construction,improvement of interfacial interaction,improvement of the stability of filler dispersion in the solvent,and enhancement of mechanical and thermal properties of the *** resulting AMFsp H=4/LM films demonstrate a thermal conductivity of 10.98 W·m^(-1)·K^(-1)at 70%filler content,improvement of 126.8%compared to ANFs/LM film;while maintaining a strength of~85.88 MPa,improvement of 77%compared to AMFs/LM *** also possess insulation properties,enable heat dissipation for high power *** work provides an effective strategy for the preparation of high performance polymer composites containing liquid metal.