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首页> 外文期刊>Journal of Applied Polymer Science >Polyester-based phase change materials with flexible poly(ethylene glycol) chains for thermal energy storage
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Polyester-based phase change materials with flexible poly(ethylene glycol) chains for thermal energy storage

机译：基于聚酯基相变材料，具有柔性聚（乙二醇）链热能储存

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摘要

Phase change materials are capable of storing renewable energy in an economical, feasible, and green way. Here, novel polyester-based solid-solid phase change materials (PPCMs) are synthesized through solvent-free crosslinking polymerization. Poly(ethylene glycol) (PEG) is used as the phase change ingredient, while crosslinked polyester acts as the supporting material. One chain end of PEG reliably bonds with the rigid skeleton, while another chain end is movable. The combination of reliable crosslinked structures with flexible PEG chains endows the PPCMs with good thermal storage capacity and outstanding thermal reliability simultaneously. Fourier transform infrared spectroscopy is adopted to confirm the chemical structures of PPCMs. Their excellent crystalline properties are confirmed by wide-angle X-ray diffraction and polarizing optical microscopy (POM). Phase change properties are investigated using differential scanning calorimetry (DSC) and POM images. It is obvious in the DSC results that PPCMs have good thermal storage capacity in the range 18-63 degrees C with phase change enthalpy reaching 139.0 J/g. POM images vividly reveal the crystallization process of PPCMs. Additionally, thermal stability is studied using thermogravimetric analysis, and the results show that PPCMs are thermally stable up to 300 degrees C. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47108.
机译：相变材料能够以经济，可行和绿色的方式存储可再生能源。这里，通过无溶剂的交联聚合来合成新型聚酯基固体相变材料（PPCMS）。聚（乙二醇）（PEG）用作相变成分，而交联聚酯作为支撑材料。 PEG的一条链末端可靠地与刚性骨架键合，而另一个链端是可移动的。具有柔性PEG链的可靠交联结构的组合赋予PPCM具有良好的热存储容量和同时出色的热可靠性。采用傅里叶变换红外光谱法确认PPCMS的化学结构。它们通过广角X射线衍射和偏振光学显微镜（POM）来确认它们优异的结晶性能。使用差分扫描量热法（DSC）和POM图像来研究相变性。在DSC的结果中显而易见的是，PPCMS在18-63摄氏度的范围内具有良好的热存储容量，相变焓达到139.0J / g。 POM图像生动地揭示了PPCMS的结晶过程。另外，使用热重分析研究了热稳定性，结果表明，PPCMS热稳定高达300度C.（c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47108。

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  • 来源
    《Journal of Applied Polymer Science》 |2019年第10期|共9页
  • 作者

    Wu Bo; Liu Zhimeng; Xiao Yao; Wang Yi; Zhou Changlin; Zhang Xi; Lei Jingxin;

  • 作者单位

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

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

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

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

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

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

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

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    crystallization; polyesters; thermal properties;

    机译：结晶;聚酯;热性质;

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