Wearing a compression garment (CG) can effectively prevent and treat hypertrophic scars (HS), but the surface of CG is prone to bacterial growth. Therefore, it is particularly important to carry out antibacterial finishing on compression garment fabric (CGF). In order to achieve the purpose of synergistic antibacterial action, improving bacteriostatic rate, and enhancing biological safety, this study prepared a composite material of MXene (Ti3C2Tx), chitosan, and amino silane coupling agent (3-aminopropyl)triethoxysilane (APTES) and its antibacterial CGF. The binding mechanism between the antibacterial composite material and the CGF was explored, and the bacteriostatic rates, wearing properties, and wash fastness of the antibacterial CGF were studied. Results showed that Ti3C2Tx, chitosan, and APTES were covalently bonded to the CGF, achieving synergistic antibacterial effects. The antibacterial CGF without washing showed a bacteriostatic rate of 99.9% against both Gram-negative bacteria Esherichia coli (E. coli, AATCC 6538) and Gram-positive bacteria Staphylococcus aureus (S. aureus, AATCC 25922), with washing fastness reaching grade AA. Additionally, the comfort of the antibacterial finishing fabric was affected to a certain extent in terms of flexural rigidity and air permeability, but overall, the wearability of the antibacterial CGF also met the daily wearing needs of patients.
In this work, the one-step stereochemical antimicrobial finishing of cotton textiles (CT) was achieved by the oxidative copolymerization of a dopamine-menthol derivative (DAM) and dopamine (DA). The obtained DAM-modified CT (P(DAM- co -DA)-CT) exhibited broad-spectrum microbial anti-adhesion properties against bacteria ( E. coli and P. aeruginosa ), including superbugs (MRSA and VREF), and fungi ( A. niger , A. flavus , M. racemosus and P. chrysogenum ). Because of its unique stereochemical antimicrobial mechanism, the obtained P(DAM- co -DA)-CT is a non-releasing antimicrobial material that causes no skin sensitization and exhibits good biocompatibility. The coating was also found to enhance the UV-resistant and mechanical properties of the CT. Furthermore, it displayed durable washing fastness and antimicrobial properties after the endurance of 30 laundering cycles. The observed achievements provide a broader understanding of stereochemical antimicrobial surfaces and endow this method with wider applications.
In this study, a chitosan-based high polymer antibacterial agent CS-g-DMC with high water solubility was synthesized via an environmentally friendly initiator system of H 2 O 2 and ascorbic acid (Vc). The CS-g-DMC is used for the long-effective antibacterial finishing of cotton fabric. SEM, EDS, FTIR, XPS, and XRD were conducted to characterize the finished fabric. After the treatment, the CS-g-DMC were cross-linked with cellulose by 1,2,3,4-Butane tetracarboxylic acid BTCA thus immobilized on cotton fabrics. Results showed CS-g-DMC had linked with cellulose by stable chemical bond and uniformly distributed on the surface of cotton fiber. The antibacterial test shows that after treatment, the inhibition rates of the cotton fabric against E. coli and S. aureus are above 99.9%. Moreover, the inhibition rates of the two bacteria reach 94.3% and 95.3% after washing ten times, respectively. The finished cotton fabric had significantly improved hydrophily; its contact angle decreased from 107° to 104°. Its breaking force significantly increased from 173.38 to 219.33 N, while its breaking elongation and moisture transmission rate had no significant decrease. In general, CS-g-DMC-finished cotton fabrics achieve long-lasting antibacterial properties and higher mechanical properties while retaining a high degree of wearing comfort.
危险品化学品经营许可证（带存储）