Multifunctional Bamboo Fiber Hybrid Structural Materials for Daytime Radiation Cooling

作者：Xixi Piao, Yanwei Cao, Hanxiang Guo, Chunde Jin, Zhe Wang · 发表于：ACS Sustainable Chemistry & Engineering · 年份：2022 · DOI：10.1021/acssuschemeng.2c03801 · 被引用次数：22 · 研究领域：Thermal Radiation and Cooling Technologies、Urban Heat Island Mitigation、Building Energy and Comfort Optimization

Through the complete delignification and densification process of bamboo, a 3D network bulk was assembled to process a high-performance and inexpensive cooling structural material. We constructed a cooling bamboo with a mechanical strength of 270.1 MPa as a structural material with more than 9.5 times the volume of pure bamboo fiber, and it has higher specific strength than most structural materials. Cellulose acts as a photonic solar reflector and thermal emitter, enabling the material to achieve 24 h continuous cooling with an average daytime and nighttime cooling of 3 and 2 °C, respectively. At the same time, it also has excellent flame-retardant and anti-fungal functions, and undoubtedly, it is a potential building structure material in the future.