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Influence of amine curing agents on phase change performance in developing flame-retardant thermal management epoxy composites

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  • Hua, Yifang
  • Peng, Qinghua
  • Zhang, Jingfan
  • Gu, Weiwen
  • Zhang, Jingyu
  • Sun, Jun
  • Gu, Xiaoyu
  • Wang, Haiqiao
  • Zhang, Sheng

Abstract

The blending of epoxy resin (EP) with polyethylene glycol (PEG) effectively addresses leakage issues in solid-liquid phase change materials (SLPCMs) by creating form-stable phase change materials (FSPCMs). However, the discrepancies between the actual enthalpy and encapsulation efficiency and their theoretical values within this system remain unexplored in a systematic manner. To investigate these issues, four amine curing agents were selected as model compounds to examine their influence on phase change performance. The role of curing agents in enhancing the interfacial bonding between EP and PEG was systematically explored, highlighting their critical impact on phase change stability and energy efficiency. Additionally, PEG was modified to improve flame retardancy, resulting in FREPP-60/4 %EG with enhanced flame resistance and stable phase change behaviour. Simulation tests revealed its good thermal management performance, characterized by rapid heat absorption during heating and sustained heat release during cooling, showing significant potential for building applications.

Suggested Citation

  • Hua, Yifang & Peng, Qinghua & Zhang, Jingfan & Gu, Weiwen & Zhang, Jingyu & Sun, Jun & Gu, Xiaoyu & Wang, Haiqiao & Zhang, Sheng, 2025. "Influence of amine curing agents on phase change performance in developing flame-retardant thermal management epoxy composites," Energy, Elsevier, vol. 328(C).
    • Handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225021164
    DOI: 10.1016/j.energy.2025.136474
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    References listed on IDEAS

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