Fabrication of radiative cooling function on wood surface via TCMs@ZnO
5 affiliations
- 1Yunnan Provincial Key Laboratory of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China; College of Material and Chemical Engineering, Southwest Forestry University, Kunming 650224, China
- 2State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
- 3College of Soil and Water Conservation, Southwest Forestry University, Kunming 650224, China; Corresponding authors.
- 4College of Forestry, Wildlife and Environment, Auburn University, Auburn, Alabama 36849, USA
- 5Yunnan Provincial Key Laboratory of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China; College of Material and Chemical Engineering, Southwest Forestry University, Kunming 650224, China; Corresponding authors.
Abstract
Radiative cooling materials offer passive heat management but often suffer from high cost, complex processing, and poor outdoor durability. Here, a scalable strategy was developed to fabricate thermochromic radiative cooling wood by integrating thermochromic microcapsules (TCMs) and ZnO nanoparticles into a phenolic resin coating on rubberwood ( Hevea brasiliensis ) and fir ( Cunninghamia lanceolata (Lamb.) Hook.). The in situ synthesized ZnO-modified resin formed uniform micro/nano-structured coatings with strong adhesion and reversible thermochromic behavior, increasing the ultraviolet (UV)-visible reflectance by approximately 44.7% when the wood temperature ( T ) exceeded the critical transition temperature ( T c = 28 °C). The hybrid coating enhanced hydrophobicity, self-cleaning, and UV resistance, ensuring long term optical stability. Outdoor tests demonstrated effective thermal regulation performance, with maximum surface and subsurface temperature reductions of 10.4 and 7.2 °C, respectively, while wooden house models achieved surface and indoor temperature decreases of 3.3 and 2.5 °C, respectively. EnergyPlus simulations further indicated annual cooling energy saving rates up to 19.5% in hot climates. This study presents a multifunctional thermochromic radiative cooling wood with integrated dynamic optical regulation, offering a sustainable and scalable route toward energy-efficient and climate-adaptive building materials.
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BibTeX
@article{sun2026fabrication,
title = {{Fabrication of radiative cooling function on wood surface via TCMs@ZnO}},
author = {Xinyu Sun and Hongdie Li and Maojie Tang and Qian Liu and Baiyu Wang and Yuchen Yang and Xueli Guo and Xiping Cheng and Yucheng Peng and Guanben Du and Wei Gao},
journal = {Journal of Bioresources and Bioproducts},
year = {2026},
month = oct,
doi = {10.1016/j.jobab.2026.100301},
url = {https://doi.org/10.1016/j.jobab.2026.100301},
note = {CC BY},
}
RIS
TY - JOUR
TI - Fabrication of radiative cooling function on wood surface via TCMs@ZnO
AU - Xinyu Sun
AU - Hongdie Li
AU - Maojie Tang
AU - Qian Liu
AU - Baiyu Wang
AU - Yuchen Yang
AU - Xueli Guo
AU - Xiping Cheng
AU - Yucheng Peng
AU - Guanben Du
AU - Wei Gao
PY - 2026
DA - 2026/10/25
JO - Journal of Bioresources and Bioproducts
DO - 10.1016/j.jobab.2026.100301
UR - https://doi.org/10.1016/j.jobab.2026.100301
AB - Radiative cooling materials offer passive heat management but often suffer from high cost, complex processing, and poor outdoor durability. Here, a scalable strategy was developed to fabricate thermochromic radiative cooling wood by integrating thermochromic microcapsules (TCMs) and ZnO nanoparticles into a phenolic resin coating on rubberwood ( Hevea brasiliensis ) and fir ( Cunninghamia lanceolata (Lamb.) Hook.). The in situ synthesized ZnO-modified resin formed uniform micro/nano-structured coatings with strong adhesion and reversible thermochromic behavior, increasing the ultraviolet (UV)-visible reflectance by approximately 44.7% when the wood temperature ( T ) exceeded the critical transition temperature ( T c = 28 °C). The hybrid coating enhanced hydrophobicity, self-cleaning, and UV resistance, ensuring long term optical stability. Outdoor tests demonstrated effective thermal regulation performance, with maximum surface and subsurface temperature reductions of 10.4 and 7.2 °C, respectively, while wooden house models achieved surface and indoor temperature decreases of 3.3 and 2.5 °C, respectively. EnergyPlus simulations further indicated annual cooling energy saving rates up to 19.5% in hot climates. This study presents a multifunctional thermochromic radiative cooling wood with integrated dynamic optical regulation, offering a sustainable and scalable route toward energy-efficient and climate-adaptive building materials.
SN - 2369-9698
ER -