Preparation and properties of self-healing photochromic polyurethane composite fabric

LI Han; GUO Yang; BAI Song; WU Huanling; LIN Ling; MAO Haiyan

doi:10.13801/j.cnki.fhclxb.20231214.004

Volume 41 Issue 8

Aug. 2024

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LI Han, GUO Yang, BAI Song, et al. Preparation and properties of self-healing photochromic polyurethane composite fabric[J]. Acta Materiae Compositae Sinica, 2024, 41(8): 4189-4199. doi: 10.13801/j.cnki.fhclxb.20231214.004

Citation:

LI Han, GUO Yang, BAI Song, et al. Preparation and properties of self-healing photochromic polyurethane composite fabric[J]. Acta Materiae Compositae Sinica, 2024, 41(8): 4189-4199. doi: 10.13801/j.cnki.fhclxb.20231214.004

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Preparation and properties of self-healing photochromic polyurethane composite fabric

doi: 10.13801/j.cnki.fhclxb.20231214.004

School of Textile & Clothing, Yancheng Institute of Technology, Yancheng 224051, China

Funds: National Natural Science Foundation of China (52103067); Natural Science Foundation of Jiangsu Province (BK20191045)

Received Date: 2023-10-24
Accepted Date: 2023-12-01
Rev Recd Date: 2023-11-25

Available Online: 2023-12-15

Publish Date: 2024-08-01

Abstract

Abstract

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.
- polyurethane,
- photochromism,
- self-healing property,
- recycling,
- composite fabric
Long Abstrsct
Innovation Points

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References(27)

References

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