柔性聚乙二醇基相变储能材料的研究进展  

Research Progress of Flexible Polyethylene Glycol-based Phase Change Energy Storage Materials

作　　者：王杰 王娇娜[1] 张群 侯思彤 王进韬 李昕[1] WANG Jie;WANG Jiaona;ZHANG Qun;HOU Sitong;WANG Jingtao;LI Xing(School of Materials Design and Engineering,Beijing Key Laboratory of Clothing Materials R&D and Assessment,Beijing Engineering Research Ceneer of Textile Wanofiber,Beijing Institute of Fashion Technology,Beijing 100029,China)

机构地区：[1]北京服装学院材料设计与工程学院,服装材料研究开发与评价北京市重点实验室,北京市纺织纳米纤维工程技术研究中心,北京100029

出　　处：《北京服装学院学报（自然科学版）》2023年第4期1-10,28,共11页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

基　　金：北京服装学院培育基金重点项目(NHFZ20230158);国家自然科学基金项目(51873003);北京市教委科技重点项目(KZ201910012015);北京学者计划(RCQJ20303)。

摘　　要：固固相变材料(SSPCMs)在低温时放热,高温时吸热,具有储能特性,受到研究者的重点关注。聚乙二醇(PEG)具有焓值高、相变温度随分子量的变化范围广等优点,但其固液相变特性使其应用受限,所以通常将PEG封装后制备SSPCMs。但是封装后由于非热活性骨架的存在而使其储能密度、热导率和柔性均有所下降,目前的研究重点是在确保柔性的前提下提高热导率和储能密度。从掺杂多孔材料、微胶囊化、静电纺丝技术和聚合物交联四个方面对提高PEG的储能密度与柔性的方法进行了论述,并展望了未来的研究方向以及存在的挑战。Solid-solid phase change materials(SSPCMs)have gained significant attention for their energy storage properties,which are exothermic at low temperatures and heat-absorbing at high temperatures.However,the encapsulation of PEG has resulted in reduced energy storage density,thermal conductivity and flexibility due to the presence of a non-thermally active backbone.Therefore,current research primarily focused on enhancing thermal conductivity and energy storage density while ensuring flexibility.The article reviewed three approaches to improve-thermal conductivity and energy storage density while ensuring flexibility.This article also reviewed four approaches to improve energy storage density and flexibility of PEGs:doped porous materials,microencapsulation,electrostatic spinning technology and cross-linking of polymers.Future research directions and challenges were also discussed in this reviews.

关 键 词：柔性固-固相变材料 聚乙二醇 储能密度 热导率 

分 类 号：TB34[一般工业技术—材料科学与工程]