Dual-phase change composites with temperature control and low infrared emissivity properties fabricated by electrospinning for infrared stealth and thermal camouflage

扫码查看

原文链接

万方数据

外文摘要：Infrared stealth technology allows targets to evade detection by thermal infrared detection and plays an important role in the defense industry and military.However,current research and development of infrared stealth materials focuses only on reducing infrared emissivity or controlling the surface temperature of an object,and few studies combine the two.Therefore,in this paper,vanadium dioxide/polyethylene glycol/polyacrylonitrile(VO2/PEG/PAN)composite nanofibrous films were fabricated using the electrospinning technique with PAN as the matrix,PEG as the temperature-regulated material and VO2 as the infrared emissivity material.The composite nanofibrous films not only possessed excellent thermal stability and mechanical properties but also had good thermal regulation and adjustable infrared emissivity.The latent heat value of the first phase change was 40.42 J g-1 and the latent heat value of the second phase change was 4.27 J g-1 when the content of VO2 was 40wt％;more importantly,the infrared emissivity was 0.16 at 90℃.Therefore,the composite nanofibrous films could help achieve good infrared stealth and thermal camouflage performance for high-temperature targets through effective thermal buffering and infrared emissivity modulation capabilities.With the characteristics of ultra-lightweight,flexibility,foldability,adjustable shape,strong thermal stability,excellent mechanical properties,thermal self-regulation,and adjustable infrared emissivity,the prepared VO2/PEG/PAN composite nanofibrous films present great potential for application in infrared stealth and thermal camouflage of new military equipment.

外文关键词：

phase changethermal camouflageelectrospinningvanadium dioxideinfrared stealth

作者：

LI ChuanChang、CHE PanPan、XIE BaoShan、ZENG XiaoLiang、LONG Yi

展开 >

作者单位：

Key Laboratory of Renewable Energy Electric-Technology of Hunan Province,School of Energy and Power Engineering,Changsha University of Science and Technology,Changsha 410114,China

State Key Laboratory of Disaster Prevention & Reduction for Power Grid,Changsha University of Science & Technology,Changsha 410114,China

Shenzhen Institute of Advanced Electronic Materials,Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

Department of Electronic Engineering,The Chinese University of Hong Kong,Hong Kong 999077,China

展开 >

出版年：

2024

DOI：

10.1007/s11431-024-2726-6

中国科学:技术科学(英文版)

中国科学院

中国科学:技术科学(英文版)

CSTPCDEI

影响因子：1.056

ISSN：1674-7321

年,卷(期)：2024.67(12)