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Polystyrene shell-based "coconut-like" and "pomegranate-like" microencapsulated phase change materials: Formation mechanism, thermal conductivity/stability enhancement and their application in thermal management

文献类型：期刊论文

作者Zhang, Wei1,4; Pan, Rui1,4; Yang, Jihua1,4; Liu, Mengru1,4; Yao, Yunle1,4; Zhang, Awang2; Gong, Yi4; Gan, Zhengya4; Hu, Rui4; Ding, Jianjun4
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2024-10-15
卷号498
关键词Microencapsulated phase change materials (MEPCMs) Polystyrene (PS) Formation mechanism Thermal conductivity Thermal stability pomegranate-like MEPCMs
ISSN号1385-8947
DOI10.1016/j.cej.2024.155758
通讯作者Gong, Yi(yigong@rntek.cas.cn) ; Tian, Xingyou(xytian@issp.ac.cn)
英文摘要Encapsulation of phase change materials (PCMs) using polystyrene (PS) can be an effective solution to the leakage of PCMs, but the low thermal conductivity/stability of the prepared microencapsulated phase change materials (MEPCMs) remain unresolved. Here, we investigated the formation mechanism of PS shell-based MEPCMs via Pickering emulsion polymerization: coconut-like and pomegranate-like MEPCMs were obtained for the first time before and after the introduction of divinylbenzene (DVB), and the thermal conductivity and stability of the former were lower than that of the latter with the same graphene nanosheets (GNSs). Among them, MEPCM-4-7 wt% GNSs (St:DVB=1:1) has the highest thermal conductivity of 0.9358 W center dot m(-1)center dot k(-1) (222.47 % higher than MEPCM without GNSs) and optimal anti-leakage performance. The thermal stability (thermogravimetric results) is slightly weaker than MEPCM-3-7 wt% GNSs (St:DVB=5:1), but has the highest thermal reliability (the melting enthalpy only decreases by 0.19 % after 100 cycles). The phase change composites (PCCs) was prepared by dispersing MEPCMs in PDMS matrix and applied to the simulated chip thermal management, which can achieve a 10.85 % decrease in the chip equilibrium temperature compared with PDMS. The method of improving the heat transfer properties and thermal stability of MEPCMs based on their structure provides a new idea to solve the problem of low thermal conductivity and stability of MEPCMs, and the prepared PCCs show great potential for practical applications in the field of thermal management.
WOS关键词ENERGY-STORAGE ; MICROCAPSULES ; FABRICATION ; COMPOSITES
资助项目Plan for Anhui Major Provincial Science & Technology Project[202203a05020003] ; Youth Innovation Promotion Association, Chinese Academy of Sciences (CAS)[2020446] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS. Central Government Guiding Local Government Science and Technology Development Special Fund Project[2022ZB09002] ; Natural Science Foundation of the Education Department of Anhui Province[2023AH051286] ; Scientific research project of Hefei Normal University[HXXM2022207] ; Scientific research project of Hefei Normal University[KF2022YB04]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001319048600001
出版者ELSEVIER SCIENCE SA
资助机构Plan for Anhui Major Provincial Science & Technology Project ; Youth Innovation Promotion Association, Chinese Academy of Sciences (CAS) ; Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS. Central Government Guiding Local Government Science and Technology Development Special Fund Project ; Natural Science Foundation of the Education Department of Anhui Province ; Scientific research project of Hefei Normal University
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135383]  
专题中国科学院合肥物质科学研究院
通讯作者Gong, Yi; Tian, Xingyou
作者单位1.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
2.Anhui Univ, Sch Chem & Chem Engn, Hefei 230601, Peoples R China
3.Guangdong Banggu Film Coatings Innovat Acad Co Ltd, Nanxiong 512400, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Wei,Pan, Rui,Yang, Jihua,et al. Polystyrene shell-based "coconut-like" and "pomegranate-like" microencapsulated phase change materials: Formation mechanism, thermal conductivity/stability enhancement and their application in thermal management[J]. CHEMICAL ENGINEERING JOURNAL,2024,498.
APA Zhang, Wei.,Pan, Rui.,Yang, Jihua.,Liu, Mengru.,Yao, Yunle.,...&Tian, Xingyou.(2024).Polystyrene shell-based "coconut-like" and "pomegranate-like" microencapsulated phase change materials: Formation mechanism, thermal conductivity/stability enhancement and their application in thermal management.CHEMICAL ENGINEERING JOURNAL,498.
MLA Zhang, Wei,et al."Polystyrene shell-based "coconut-like" and "pomegranate-like" microencapsulated phase change materials: Formation mechanism, thermal conductivity/stability enhancement and their application in thermal management".CHEMICAL ENGINEERING JOURNAL 498(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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