期刊
CELLULOSE
卷 28, 期 9, 页码 5867-5879出版社
SPRINGER
DOI: 10.1007/s10570-021-03875-x
关键词
Cotton fabric; Carboxymethyl chitosan; (3-Carboxypropyl) trimethylammonium chloride; Antimicrobial
资金
- National Natural Science Foundation of China [51873195, 51803186, 51573167]
In this study, antibacterial cotton fabric was prepared using CMC and CPTC as raw materials, showing excellent laundering durability and bacteriostatic reduction rate. The modified cotton fabrics demonstrated safety and comfort in terms of cytotoxicity, vapor transmissibility, tensile strength, water absorption, and flexibility, maintaining good antibacterial efficacy even after repeated washing cycles.
In this article, carboxymethyl chitosan (CMC) and (3-carboxypropyl) trimethylammonium chloride (CPTC) were used as raw materials to prepare an antibacterial cotton fabric with excellent laundering durability. CMC was first anchored to the surface of cotton fiber via esterification between the carboxyl groups of CMC and the hydroxyl groups of the cellulose molecules on the cotton fiber surface, and then the CPTC was linked to the CMC chains via amidation to the amino groups of the grafted CMC chains. The antibacterial tests showed that the bacteriostatic reduction rate (BR) of the finished cotton fabric against S. aureus and E. coli was above 99.9%, and the BR value of modified cotton fabric remained above 99.9% even after 120 laundering cycles. The results of cytotoxicity, vapor transmissibility, and tensile strength of the fabric samples, as well as the evaluation of water absorption and flexibility show that the modified cotton fabrics are safe and comfortable.
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