Photonic Metafabric with Biomimetic Triangular Light Track for Passive Radiative Cooling

IF 17.2 1区工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Fiber Materials Pub Date : 2024-07-30 DOI:10.1007/s42765-024-00467-9

Hongyu Guo, Bomou Ma, Jianyong Yu, Xueli Wang, Yang Si

{"title":"Photonic Metafabric with Biomimetic Triangular Light Track for Passive Radiative Cooling","authors":"Hongyu Guo, Bomou Ma, Jianyong Yu, Xueli Wang, Yang Si","doi":"10.1007/s42765-024-00467-9","DOIUrl":null,"url":null,"abstract":"<p>Integrating passive radiative cooling techniques with wearable fabrics provides a zero-energy strategy for preventing people from heat stress and reducing cooling demand. However, developing wearable passive radiative cooling fabrics with ideal optical characteristics, wearability, and scalability has consistently presented a challenge. Here, we developed a metafabric with high sunlight reflectivity (88.07%) according to the design of an individual photonic structure, which demonstrates total internal reflection with the tailored triangular light track. A skin simulator covered by metafabric exhibits a temperature drop of 7.17 °C in the daytime compared with regular polyester fabric in an outdoor cooling test. Consequently, it was theoretically proven to exert a substantial influence on achieving a significant cooling demand reduction of 52.69–185.79 W·m<sup>−2</sup>. These characteristics, coupled with structural stability, air-moisture permeability, sufficient wearability, and scalability, allowed the metafabric to provide a solution for introducing zero-energy passive radiative cooling technique into human body cooling.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\n","PeriodicalId":459,"journal":{"name":"Advanced Fiber Materials","volume":"1 1","pages":""},"PeriodicalIF":17.2000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Fiber Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s42765-024-00467-9","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Integrating passive radiative cooling techniques with wearable fabrics provides a zero-energy strategy for preventing people from heat stress and reducing cooling demand. However, developing wearable passive radiative cooling fabrics with ideal optical characteristics, wearability, and scalability has consistently presented a challenge. Here, we developed a metafabric with high sunlight reflectivity (88.07%) according to the design of an individual photonic structure, which demonstrates total internal reflection with the tailored triangular light track. A skin simulator covered by metafabric exhibits a temperature drop of 7.17 °C in the daytime compared with regular polyester fabric in an outdoor cooling test. Consequently, it was theoretically proven to exert a substantial influence on achieving a significant cooling demand reduction of 52.69–185.79 W·m⁻². These characteristics, coupled with structural stability, air-moisture permeability, sufficient wearability, and scalability, allowed the metafabric to provide a solution for introducing zero-energy passive radiative cooling technique into human body cooling.

Graphical abstract

Abstract Image

查看原文本刊更多论文

用于被动辐射冷却的仿生物三角光轨光子元结构

将被动辐射冷却技术与可穿戴织物相结合，为人们提供了一种零能耗的防暑降温策略。然而，开发具有理想光学特性、可穿戴性和可扩展性的可穿戴被动辐射冷却织物一直是一项挑战。在此，我们根据独立光子结构的设计，开发了一种具有高阳光反射率（88.07%）的元面料，它通过量身定制的三角形光轨实现了全内反射。在室外降温测试中，与普通聚酯织物相比，由 metafabric 覆盖的皮肤模拟器在白天的温度下降了 7.17 °C。因此，从理论上讲，它能显著减少 52.69-185.79 W-m-2 的制冷需求。这些特性，再加上结构稳定性、透气透湿性、足够的耐磨性和可扩展性，使元织物为将零能耗被动辐射制冷技术引入人体制冷提供了一种解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advanced Fiber Materials Multiple-

CiteScore

18.70

自引率

11.20%

发文量

109

期刊介绍： Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.