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Hierarchical Ni-plated melamine sponge and MXene film synergistically supported phase change materials towards integrated shape stability,thermal management and electromagnetic interference shielding

查看全文 作　　者：Ziling [1,2]Cheng;Guojun [1,2]Chang;Bai [1,2,3]Xue;Lan [1,2,3]Xie;Qiang [4]Zheng 高影响力作者 机构地区：[1]State Key Laboratory of Public Big Data,Guizhou University,Guiyang 550025,China;[2]Department of Polymer Materials and Engineering,College of Materials and Metallurgy,Guizhou University,Guiyang 550025,China;[3]National Engineering Research Center for Compounding and Modification of Polymer Materials,National and Local Joint Engineering Research Center for Functional Polymer Membrane Materials and Membrane Processes,Guiyang 550014,China;[4]College of Polymer Science and Engineering,Zhejiang University,Hangzhou 310000,China高影响力机构 出　　处：《Journal of Materials Science & Technology》索引2023年第1期,共12页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China(No.51963003);the Science and Tech-nology Plan Project of Guizhou Province(No.ZK[2022]Maj019);the Youth Science and Technology Talent Growth Project of Guizhou Province Education Department(No.[2018]106);the Key Project of Fundamental Research in Guizhou Province(No.[2020]1Z044). 摘　　要：Along with the integrated and miniaturized development of advanced electronic devices,phase change materials(PCMs)simultaneously with efficient thermal management and high electromag-netic interference(EMI)shielding effectiveness(SE)are ungently demanded.Herein,the shape-stabilized MXene/Ni-platted melamine sponge/Regenerated cellulose/Graphene nanoplate/Polyethylene glycol(MX/Ni@MS/RCG/PEG)composite PCMs comprising hierarchical Ni@MS/RCG and MXene film were fabricated via a facile encapsulation approach.Hierarchical Ni@MS/RCG hybrid aerogel was prepared by electroless plating and sol-gel methods,and MXene film was obtained using vacuum-assisted filtra-tion procedure.The synergistic effect of conductive Ni@MS/RCG networks and tight MXene film endows MX/Ni@MS/RCG/PEG composite PCMs with good shape stability,high cyclic reliability,large latent heat of phase change(154.3 J g^(–1)),excellent thermal conductivity(TC,0.47 W m^(–1)K^(–1))and favorable EMI shield-ing performance(32.7 dB).The TC of acceptable 0.47 W m^(–1)K^(–1)is observed for MX/Ni@MS/RCG-5/PEG at a rather low GNP content of merely 0.39 wt%.In addition,the temperature variation of MX/Ni@MS/RCG-5/PEG is a lot faster than that of pure PEG in the heating/cooling process,revealing the remarkable energy storage and release efficiency for the composite PCMs.This investigation has taken an important step to-wards shape-stabilized composite PCMs with both effective thermal management and high EMI SE for promising applications in electronic packaging and advanced energy. 关 键 词：Phase change material Thermal management Electromagnetic interference shielding Shape stability Encapsulation
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