An effective, low-cost and eco-friendly method for preparing UV resistant silk fabric

Although silk fabric has a good performance in softness, smoothness, permeability, and comfort, its poor UV resistance and easy yellowing seriously influence its appearance and further application. In this study, to improve its UV resistance, the amino group modified nano-SiO 2 (SiO 2 -NH 2 ) was gr...

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Bibliographic Details
Published in:Journal of natural fibers 2022-12, Vol.19 (13), p.5173-5185
Main Authors: Cai, Haihua, Gao, Lizhi, Chen, Li, Chen, Xiang, Liu, Zulan, Li, Zhi, Dai, Fangyin
Format: Article
Language:English
Subjects:
amino functionalized silicon
Condensates
eco-friendly
Electrostatic properties
Fabrics
Hydrogen bonding
Low cost
Permeability
Silicon dioxide
Silk
Silk fabric
Smoothness
Softness
Ultraviolet radiation
UV resistance
Yellowing
丝绸
抗紫外线
氨基官能化硅
生态友好型
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Summary:Although silk fabric has a good performance in softness, smoothness, permeability, and comfort, its poor UV resistance and easy yellowing seriously influence its appearance and further application. In this study, to improve its UV resistance, the amino group modified nano-SiO 2 (SiO 2 -NH 2 ) was grafted on to the surface of silk fabric through a condensation reaction, electrostatic interaction, and hydrogen bonding. The results indicated that the UV resistance property of modified silk fabrics was significantly improved and the UV protection factor (UPF) value could reach up to 60. After 20 times of washing, the UPF value could still maintain about 45. Moreover, the SiO 2 -NH 2 modification did not influence the whiteness of silk fabric and the cell experiment proved that the modified silk fabrics had good compatibility. The method for silk modification in this study is effective, low-cost, and eco-friendly and it further can be applied in industry for large-scale production of UV-resistant silk fabric.
ISSN:1544-0478
1544-046X
DOI:10.1080/15440478.2021.1875362