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<p>Multifunction of silk fabrics were prepared by adopting glutaraldehyde, chitosan (CS) and graphene oxide (GO). Pure silk fabric was firstly impregnated with a mixture of CS and glutaraldehyde solution forming CS-silk and then immersed into GO dispersion, of which the GO adsorbed on silk fabric was reduced to obtain reduced graphene oxide (RGO)/CS-silk fabric. The effects of mass fraction of CS and mass concentration of GO dispersion on the electrical conductivity, ultraviolet resistance and antibacterial properties of RGO/CS-silk fabrics were investigated, and the washability of the silk fabrics were tested. The results showed that the GO deposited on the surface of RGO/CS-silk fabric was reduced to RGO, and the surface covered with a continuous RGO/CS film. The conductivity of RGO/CS-silk fabric increased with the increase of GO dispersion concentration, which is mainly due to the good conductivity of RGO. The RGO/CS-silk fabric modified by 2% CS solution and treated by 5&#xa0;g/L GO dispersion solution has the best conductivity, and the surface resistance was 1.13 kΩ/cm. RGO and CS synergistically enhanced the bacteriostasis of RGO/CS-silk fabric, and the antibacterial rate was up to 95%. The RGO/CS-silk fabric modified by 0.5% CS solution and treated by 5&#xa0;g/L GO dispersion has little change in conductivity, bacteriostasis and ultraviolet resistance after 30–50 washing circles.</p>

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Durability and Protective Functional Finishing of Silk Fabric by Chitosan

  • 期刊论文

  • 发表日期：

    2025年3月16日

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  • Chengchen Fu,
  • Yaojia Cheng,
  • Siyan Li

摘要

Multifunction of silk fabrics were prepared by adopting glutaraldehyde, chitosan (CS) and graphene oxide (GO). Pure silk fabric was firstly impregnated with a mixture of CS and glutaraldehyde solution forming CS-silk and then immersed into GO dispersion, of which the GO adsorbed on silk fabric was reduced to obtain reduced graphene oxide (RGO)/CS-silk fabric. The effects of mass fraction of CS and mass concentration of GO dispersion on the electrical conductivity, ultraviolet resistance and antibacterial properties of RGO/CS-silk fabrics were investigated, and the washability of the silk fabrics were tested. The results showed that the GO deposited on the surface of RGO/CS-silk fabric was reduced to RGO, and the surface covered with a continuous RGO/CS film. The conductivity of RGO/CS-silk fabric increased with the increase of GO dispersion concentration, which is mainly due to the good conductivity of RGO. The RGO/CS-silk fabric modified by 2% CS solution and treated by 5 g/L GO dispersion solution has the best conductivity, and the surface resistance was 1.13 kΩ/cm. RGO and CS synergistically enhanced the bacteriostasis of RGO/CS-silk fabric, and the antibacterial rate was up to 95%. The RGO/CS-silk fabric modified by 0.5% CS solution and treated by 5 g/L GO dispersion has little change in conductivity, bacteriostasis and ultraviolet resistance after 30–50 washing circles.