Ling Zhongwen, Liu Kang, Zou Qi, Li Qingsong, Zhang Ke-Qin, Cui Zheng, Yuan Wei, Liu Yuqing
National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University Suzhou 215123 China
Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences Suzhou 215123 China
RSC Adv. 2018 Aug 10;8(50):28581-28587. doi: 10.1039/c8ra05170d. eCollection 2018 Aug 7.
Photochromic fibers have attracted great attention due to their wide use in areas of military camouflage, safety warnings, anti-counterfeiting, entertainment, Compared with photochromic organic materials, inorganic photochromic tungsten trioxide (WO) materials have been extensively studied, because of their good stability and cost efficiency. In this work, we report the continuous fabrication of photochromic fibers in a simple and low-cost way by dip-coating WO/PVA composites. The prepared photochromic fibers show fast and reversible color switch from light yellow to dark blue upon UV irradiation and infrared heating treatment. The obtained photochromic fibers can be produced on a large scale and be woven into various patterns with good mechanical strength and washability, showing great potential in developing photochromic textiles.
光致变色纤维因其在军事伪装、安全警示、防伪、娱乐等领域的广泛应用而备受关注。与光致变色有机材料相比，无机光致变色三氧化钨（WO）材料因其良好的稳定性和成本效益而受到广泛研究。在这项工作中，我们报告了通过浸涂WO/PVA复合材料以简单且低成本的方式连续制备光致变色纤维。制备的光致变色纤维在紫外线照射和红外加热处理下显示出从浅黄色到深蓝色的快速且可逆的颜色转变。所获得的光致变色纤维可以大规模生产，并编织成具有良好机械强度和可洗性的各种图案，在开发光致变色纺织品方面显示出巨大潜力。
