Hierarchical MFPCM@MXene@PBA nanohybrids towards high-efficiency flame retardancy and thermal regulation performance for microencapsulated phase change materials in rigid polyurethane foam

Biyu Huang, Zexuan Zhao, Yihao Jiang, Shaofeng Wang, Chuanmei Jiao and Xilei Chen

Energy, 2025, vol. 336, issue C

Abstract: Escalating global energy demand drives the need for multifunctional building material with integrated energy storage, flame retardancy, and thermal regulation. While microencapsulated phase change materials (MPCMs) show potential, their low thermal conductivity and flammability hinder application. Here, we develop a novel MFPCM@MXene@PBA composite via layer-by-layer assembly method, and incorporate it into rigid polyurethane foam (RPUF), yielding a high-performance multifunctional material. It has been found that the MFPCM@MXene@PBA is well-dispersed in the RPUF matrix. RPUF-MFPCM@MXene@PBA exhibits excellent thermal regulation performance. In addition, RPUF-5 %MFPCM@MXene@PBA exhibits excellent flame retardancy with a rise in LOI (27.15 %) and a decrease in total heat release rate and total smoke production in comparison to virgin RPUF (decrease by 23.3 % and 39.4 %, respectively). More importantly, RPUF-MFPCM@MXene@PBA shows improved mechanical properties compared to virgin RPUF. This study paves a transformative approach to developing PCM-based thermal regulation and flame-retardant building material.

Keywords: Rigid polyurethane foam; Thermal regulation performance; Flame retardancy; Phase change materials; Mechanical property (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:336:y:2025:i:c:s0360544225040290

DOI: 10.1016/j.energy.2025.138387

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