MXene multi-functionalization of polyrotaxane based PCMs and the applications in electronic devices thermal management

作     者：Guangzhong Yin Alba Marta Lopez Ignacio Collado Antonio Vazquez-Lopez Xiang Ao Jose Hobson Silvia G.Prolongo Deyi Wang 

作者机构：Escuela Politecnica SuperiorUniversidad Francisco de VitoriaCtra.Pozuelo-Majadahonda Km 1.80028223 Pozuelo de AlarconMadridSpain IMDEA Materials InstituteC/Eric Kandel228906GetafeMadridSpain Materials Science and Engineering AreaEscuela Superior de Ciencias Experimentales y TecnologíaUniversidad Rey Juan CarlosC/Tulipan s/n28933MadridSpain Universidad Carlos III de MadridDepartamento de Ciencia e Ingeniería de Materiales e Ingeniería QuímicaIAAB.Avda.Universidad3028911LeganesMadridSpain Instituto de Tecnologías para la SostenibilidadUniversidad Rey Juan CarlosC/Tulipan s/n28933MadridSpain 

出 版 物：《Nano Materials Science》 (纳米材料科学（英文版）)

年 卷 期：2024年第6卷第5期

页      面：495-503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：supported by both BIOFIRESAFE(No.:PID2020-117274RB-I00)and NEWSAFE(No.:PID2022-143324NA-I00)Projects funded by Ministerio De Ciencia E Innovaci
on(MINECO,Spain) supported by the Agencia Estatal de Investigaci
on of Spanish Government[PROJECTS TED2021-131102B-C21 and PID2022-138496OB-I00] 

主　　题：Phase change materials Thermal regulation MXene Polyrotaxane Nanocomposites 

摘      要：The aim of this work was to improve the thermal conductivity and electromagnetic shielding of the leakage proof phase change materials(PCMs),in which a polyrotaxane(PLR)was used as a support material to encapsulate PEG 1k or PEG 6k and MXene as multi-functional *** PCMs can be processed conveniently by a hot press and the PEG 1k containing samples showed excellent *** conducted a systematic evaluation of the phase transition behavior of the material,thermal conductivity and electromagnetic shielding performance ***,the PCMs achieved a high enthalpy values(123.9–159.6 J/g).The PCMs exhibited an increase of 44.3%,and 137.5%in thermal conductivity values with higher MXene content(5 wt%)for PLR-PEG6k and PLR-PEG1k,respectively,and show high shape stability and no leakage during and after phase *** introduction of MXene can significantly improve the electromagnetic shielding performance of PCM ***,higher conductive samples(samples which contain high MXene contents)offer a higher EMI SE shielding,reaching a maximum of 4.67 dB at 5.6 GHz for *** improvements solve the main problems of organic PEG based PCMs,thus making PLR-PEG-MXene based PCMs good candidates for thermoregulators of both solid-state disks and smart *** is worth pointing out that the sample PLR-1k-MX5 can decrease 4.3
C of the reference temperature during cellphone ***,the temperature of the protecting sheet in the simulated solid state disk with PCM was significantly lower(showing a decreasing of 7.9℃)compared with the blank sample.