Cellulose acetate hierarchical porous coated textile with passive daytime radiative cooling, flexibility and durability

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED Progress in Organic Coatings Pub Date : 2024-09-01 DOI:10.1016/j.porgcoat.2024.108772

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Abstract

Passive daytime radiative cooling technology is a highly efficient cooling technology with zero energy consumption. When utilized for personal thermal management, radiative cooling textiles are capable of finely regulating the temperature of the human skin microenvironment. This study presents a cellulose acetate (CA) hierarchical porous coated textile that accomplishes high reflectance of sunlight over the full wavelength range, with a low cost and scalability, and a simple preparation procedure. With a high reflectance of 0.91 in the solar wavelength band and a high emissivity of 0.95 in the atmospheric window wavelength band, the CA hierarchical porous coated textile offers exceptional spectrally selective performances. It manifests a subambient cooling temperature of up to 19.0 °C and a skin overheating prevention effect of up to 4.2 °C. Furthermore, the coated textile possesses promising abrasion resistance, acid-alkali corrosion resistance, and mechanical properties. The present work provides a facile path for the development of green-based radiative cooling coated textiles.

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醋酸纤维素分层多孔涂层织物，具有被动式日间辐射冷却、柔韧性和耐用性

日间被动辐射冷却技术是一种零能耗的高效冷却技术。当辐射冷却纺织品用于个人热管理时，能够精细调节人体皮肤微环境的温度。本研究提出了一种醋酸纤维素（CA）分层多孔涂层纺织品，可在全波长范围内实现对太阳光的高反射率，且成本低、可扩展，制备过程简单。CA 分层多孔涂层织物在太阳光波段具有 0.91 的高反射率，在大气窗口波段具有 0.95 的高发射率，具有优异的光谱选择性能。它的亚环境冷却温度最高可达 19.0 °C，防止皮肤过热的效果最高可达 4.2 °C。此外，涂层织物还具有良好的耐磨性、耐酸碱腐蚀性和机械性能。本研究为开发绿色辐射冷却涂层纺织品提供了一条便捷的途径。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.