Regenerablity and stability of antibacterial cellulose containing triazine N-halamine

A reactive triazine derivative, 2,4-dichloro-6-hydroxy-1,3,5-triazine (DCHT), was prepared through the controlled hydrolysis of cyanuric chloride in water solution. The reaction was characterized with 13C NMR study. The reaction solutions could be directly used to treat cellulose fibers. A pad-dry-cure method was employed to immobilize the triazine derivative onto cotton. The covalently bound triazine moieties on cotton could be transformed into N-halamine structures after a chlorine bleaching treatment. The biocidal efficacies of the treated samples with different chlorine loadings were further examined. The storage and release testing showed that the antimicrobial function of the N-halamine modified cotton fabrics was durable and renewable. These advantages make the triazine N-halamine modified cotton as an attractive candidate in a broad range of application fields.