Diphylleia Grayi-Inspired Intelligent Temperature-Responsive Transparent Nanofiber Membranes  

作　　者：Cengceng Zhao Gaohui Liu Yanyan Lin Xueqin Li Na Meng Xianfeng Wang Shaoju Fu Jianyong Yu Bin Ding 

机构地区：[1]Shanghai Frontier Science Research Center of Advanced Textiles,College of Textiles,Donghua University,Shanghai 201620,People’s Republic of China

出　　处：《Nano-Micro Letters》2024年第4期67-78,共12页纳微快报（英文版）

基　　金：financially supported by National Key Research and Development Program of China (2022YFB3804903, 2022YFB3804900);the National Natural Science Foundation of China (No. 52273052);the Fundamental Research Funds for the Central Universities (No. 2232023Y01);the Program of Shanghai Academic/Technology Research Leader (No. 21XD1420100);the International Cooperation Fund of Science and Technology Commission of Shanghai Municipality (No. 21130750100)。

摘　　要：Nanofiber membranes(NFMs) have become attractive candidates for next-generation flexible transparent materials due to their exceptional flexibility and breathability. However, improving the transmittance of NFMs is a great challenge due to the enormous reflection and incredibly poor transmission generated by the nanofiber-air interface. In this research, we report a general strategy for the preparation of flexible temperature-responsive transparent(TRT) membranes,which achieves a rapid transformation of NFMs from opaque to highly transparent under a narrow temperature window. In this process, the phase change material eicosane is coated on the surface of the polyurethane nanofibers by electrospray technology. When the temperature rises to 37 ℃, eicosane rapidly completes the phase transition and establishes the light transmission path between the nanofibers, preventing light loss from reflection at the nanofiber-air interface. The resulting TRT membrane exhibits high transmittance(> 90%), and fast response(5 s). This study achieves the first TRT transition of NFMs, offering a general strategy for building highly transparent nanofiber materials, shaping the future of next-generation intelligent temperature monitoring, anti-counterfeiting measures, and other high-performance devices.

关 键 词：BIOMIMETIC TRANSPARENT Nanofibrous membrane Temperature response Phase change materials 

分 类 号：TB383.2[一般工业技术—材料科学与工程]