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Transparent wood-based phase change finishing materials for outdoor furniture surface thermal management inspired by the greenhouse effect

Yuhan YangState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaTinghuan WangState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaZihang YangState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaZhichuang WangState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaZhenyu WangState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaDapeng ZhaoState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaZhengbin HeState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaSonglin YiState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, ChinaJingjing GaoGuangxi Forestry Research Institute, Guangxi Laboratory of Forestry, Nanning 530002, ChinaXinyu ZhangBeijing Products Quality Supervision and Inspection Institute, Key Laboratory of Furniture Health and Intelligent Quality Safety, State Administration for Market Regulation, Beijing 101300, ChinaZhiyi HuangBeijing Products Quality Supervision and Inspection Institute, Key Laboratory of Furniture Health and Intelligent Quality Safety, State Administration for Market Regulation, Beijing 101300, ChinaYaqi ZhouState Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of wood Science and Engineering, Beijing Forestry University, Beijing 100083, China

Industrial Crops and Productsjournal2026en

ABI

Annotatsiya

Outdoor furniture is prone to surface undercooling or overheating due to climate variations, severely compromising user comfort. In this study, polyethylene glycol (PEG) was melt blended with epoxy resin (EP) and impregnated into delignified wood (DW) to create a transparent wood-based phase change energy storage finishing material (TW-PEG). The porous structure of DW and the cross linked network of EP jointly formed a dual encapsulation system, effectively preventing PEG leakage. Benefiting from the excellent heat storage and temperature control properties of PEG, the TW-PEG exhibited a melting enthalpy of 102.15 J/g, demonstrating remarkable thermal energy storage capacity. Moreover, under heating conditions, TW-PEG delayed the time to reach 40 °C by 670 s compared with natural wood (NW), while during cooling, it prolonged the time to decline to 25 °C by 2212 s, indicating superior temperature regulation performance. When TW-PEG was used as a finishing material combined with NW (TW-NW) to simulate outdoor furniture, after 4500 s of xenon lamp irradiation, the temperatures on the irradiated and shaded sides were 36.2 °C and 36.9 °C, respectively. Compared to the NW-NW and TW-TW combinations, these values were reduced by 6.8 °C and 3.6 °C, and increased by 3 °C and 4.3 °C, respectively, indicating that the TW-NW combination effectively mitigates overheating and excessive cooling. This performance originates from the synergistic effect of the greenhouse-effect-inspired design and the temperature regulation capability of PEG. In addition, TW-PEG also exhibited good durability. Therefore, TW-PEG shows promising application potential in the field of outdoor furniture. • Composite materials offer temperature regulation capability. • The dual encapsulation system enhances leakage resistance. • A bioinspired greenhouse effect enables solar energy utilization. • The composite exhibited thermal energy storage capability.

Mavzular

Phase Change Materials Research Bamboo properties and applications Solar Thermal and Photovoltaic Systems

Identifikatorlar

DOI: 10.1016/j.indcrop.2026.123310

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