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Study on a PEG/epoxy shape-stabilized phase change material: Preparation, thermal properties and thermal storage performance

机译:PEG /环氧树脂形状稳定相变材料的研究:制备,热性能和储热性能

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摘要

In this work, PEG based SSPCMs were successfully prepared using 9,10-dihydro-9-oxa-10-phosphaphe nanthrene-10-oxide (DOPO) modified epoxy resins as reliable supporting materials in the absence of solvent. The encapsulated PEG acted as phase change functional domains and DOPO was used to enhance the thermal stability of polymeric SSPCMs. The chemical composition and microstructure of prepared SSPCMs were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermogravimetric analysis (TG) were conducted to investigate the crystalline properties, phase change properties and thermal stability of SSPCMs. Heat storage and release performance test was conducted to certify the reversible heat storage and release performance of SSPCMs. Thermal cycling test was also performed to illustrate the thermal reliability of SSPCMs. From DSC results, the prepared SSPCMs melted at 67.7 degrees C and crystallized at 27.9 degrees C and the corresponding latent heat are 112.0 J/g and 108.0 J/g, respectively. TG results showed that SSPCMs have good thermal stability with the onset decomposition temperature far beyond their working temperature. (C) 2018 Elsevier Ltd. All rights reserved.
机译:在这项工作中,成功地使用9,10-二氢-9-氧杂-10-磷酸萘并氧十环氧化物(DOPO)改性的环氧树脂作为可靠的支撑材料,在没有溶剂的情况下成功地制备了基于PEG的SSPCM。封装的PEG充当相变功能域,DOPO用于增强聚合物SSPCM的热稳定性。用傅里叶变换红外光谱(FTIR)和扫描电子显微镜(SEM)对制备的SSPCM的化学组成和微观结构进行了表征。进行了X射线衍射(XRD),差示扫描量热法(DSC)和热重分析(TG)以研究SSPCM的结晶性质,相变性质和热稳定性。进行了储热和释放性能测试,以验证SSPCM的可逆储热和释放性能。还进行了热循环测试以说明SSPCM的热可靠性。根据DSC结果,制得的SSPCM在67.7℃熔化并在27.9℃结晶,相应的潜热分别为112.0J / g和108.0J / g。 TG结果表明,SSPCM具有良好的热稳定性,其起始分解温度远远超过其工作温度。 (C)2018 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2018年第ptab期|1134-1142|共9页
  • 作者单位

    Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Shape-stabilized phase change material; Polyethylene glycol; Thermal stability; Thermal energy storage;

    机译:形状稳定的相变材料;聚乙二醇;热稳定性;热能储存;

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