Design of micro/nano multilayer structure based on fabric for radiative cooling and infrared stealth

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-07-26 DOI:10.1016/j.porgcoat.2025.109544

Chaoqing Pan , Li Lang , Jianhua Ran , Xiaoning Tang , Deshan Cheng , Guangming Cai , Xin Wang

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引用次数: 0

Abstract

Textiles with multiple functions such as cooling, infrared stealth and UV prevention are highly demanded for military applications and other scenarios. Using solution blowing technique, polyamide 66 (PA66) fibers were deposited onto a copper nanoparticles (Cu NPs) coated plain cotton fabric in this work to demonstrate radiation cooling and infrared stealth. The net radiant cooling power reached 96 W/m² in outdoor high temperature environment, as the heat accumulation on the fabric surface was reduced by the high reflectivity of the Cu-coated layer and the inherent absorption of PA66 film. The PA66/Cu NPs/cotton (PCC) fabric was 2.2 °C lower than the ambient temperature and 4 °C lower than the original cotton fabric. It was further verified that PCC fabric had excellent radiation refrigeration performance through ice melting experiment. The unique composite structure of PCC fabric presented strong scattering and absorption effects to lights, resulting in effectively reduced infrared radiation for infrared stealth. Apart from cooling human body, the PCC fabric reduced the ultraviolet radiation, playing a dual role of sunscreen and heat insulation for outdoor protective gear applications.

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基于织物的辐射冷却和红外隐身微纳多层结构设计

具有冷却、红外隐身和防紫外线等多种功能的纺织品在军事应用和其他场景中具有很高的需求。本研究采用溶液吹塑技术，将聚酰胺66 （PA66）纤维沉积在涂覆铜纳米粒子（Cu NPs）的平纹棉织物上，以验证其辐射冷却和红外隐身性能。在室外高温环境下，由于镀铜层的高反射率和PA66薄膜的固有吸收，减少了织物表面的热量积累，净辐射冷却功率达到96 W/m2。PA66/Cu NPs/棉（PCC）织物比环境温度低2.2℃，比原棉织物低4℃。通过融冰实验进一步验证了PCC织物具有优良的辐射制冷性能。PCC织物独特的复合结构对光线具有较强的散射和吸收作用，有效降低红外辐射，实现红外隐身。除了为人体降温外，PCC面料还能减少紫外线辐射，为户外防护装备起到防晒和隔热的双重作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.