Abstract
Chitosan (CS) and graphene (Gr) were used to modify bamboo fiber fabrics to develop new bamboo fiber fabrics (CGBFs) with antimicrobial properties. The CGBFs were prepared by chemical crosslinking with CS as binder assistant and Gr as functional finishing agent. The method of firmly attaching the CS/Gr to bamboo fiber fabrics was explored. On the basis of the constant amount of CS, the best impregnation modification scheme was determined by changing the amount of Gr and evaluating the properties of the CS/Gr modified bamboo fiber fabrics. The results showed that the antibacterial rate of CGBFs with 0.3 wt% Gr was more than 99%, and compared with the control sample, the maximum tensile strength of CGBF increased by 1% in the longitudinal direction and 7.8% in the weft direction. The elongation at break increased by 2.2% in longitude and 57.3% in latitude. After 20 times of washing with WOB (without optical brightener) detergent solution, the antimicrobial rate can still be more than 70%. Therefore, these newly CS/Gr modified bamboo fiber fabrics hold great promise for antibacterial application in home decoration and clothing textiles.
Highlights
Chitin deacetylates to form chitosan, which has good biocompatibility, degradability, bactericidal and bacteriostatic effects in different environments [1]
The bamboo fiber fabrics were impregnated with CS/Gr composite solution to prepare for the CS/Gr modified bamboo fiber fabrics (CGBFs), and the effects of chitosan and graphene contents on the antibacterial properties of CGBFs were evaluated, respectively
Aminos of onPreparation chitosan can amideSolution with carboxyl groups on graphene to form -NHCO- bonds, as Aminos on chitosan can amide with carboxyl groups onon graphene to to form
Summary
Chitin deacetylates to form chitosan, which has good biocompatibility, degradability, bactericidal and bacteriostatic effects in different environments [1]. The chitosan/graphene composite film prepared by Xie et al [5] has good mechanical and vapor transport properties. Song et al [7] introduced chitosan into bamboo fabric by surface modification process, which improved the antimicrobial property of textiles. The chitosan/graphene composites were used to prepare hydrophilic fabrics by adding silane coupling agent by layer-by-layer self-assembly or direct adsorption crosslinking, which had good antibacterial properties and mechanical properties. The operation process was simple, the cost was low, and the fabrics still had good antimicrobial activity under acid and alkali conditions after washing many times. The bamboo fiber fabrics were impregnated with CS/Gr composite solution to prepare for the CS/Gr modified bamboo fiber fabrics (CGBFs), and the effects of chitosan and graphene contents on the antibacterial properties of CGBFs were evaluated, respectively. The antibacterial materials (chitosan and graphene) were introduced into bamboo fiber fabrics by dipping method and a green, environmentally friendly and excellent performance fabric was developed
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