Preparation and properties of self-healing photochromic polyurethane composite fabric

被引:0
作者
Li, Han [1 ]
Guo, Yang [1 ]
Bai, Song [1 ]
Wu, Huanling [1 ]
Lin, Ling [1 ]
Mao, Haiyan [1 ]
机构
[1] School of Textile & Clothing, Yancheng Institute of Technology, Yancheng
来源
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2024年 / 41卷 / 08期
基金
中国国家自然科学基金;
关键词
composite fabric; photochromism; polyurethane; recycling; self-healing property;
D O I
10.13801/j.cnki.fhclxb.20231214.004
中图分类号
学科分类号
摘要
In order to improve the durability of photochromic coated fabrics, the photochromic microcapsules (PM) and zwitterionic polyurethane (ZPU) were used to prepare PM/ZPU films, which were then hot-pressed onto cotton fabrics to obtain the self-healing PM/ZPU composite fabrics. The structure and morphology of PM/ZPU composite fabric were characterized, and the photochromic properties, self-healing and recycling ability of PM/ZPU composite fabric were discussed in detail. The results show that the maximum absorption wavelength of PM/ZPU composite fabric changes from 470 nm to 530 nm, the color changes from yellow-orange to reddish-brown, and the fabric has good fatigue resistance. Based on the dynamic reversibility of zwitterionic, the scratches of PM/ZPU composite fabric can be completely repaired at 80℃, and the bond strength of the fractured composite fabric reaches 1.47 MPa at 60℃, showing excellent self-healing properties. The coating on the waste fabric can be recycled and reused by a simple dissolution method, and the PM/ZPU composite fabric can still be prepared with good photochromic properties. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
引用
收藏
页码:4189 / 4199
页数:10
相关论文
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