Research in the Antimicrobial Activity of Guanidinylated Chitosan treated Wool Fabric

摘要

Chitosan biguanidine hydrochloride (CGH) has been synthesized by the guanidinylation reaction of chitosan with dicyandiamide. The structures of CGH were characterized by flourier transform infrared spectroscopy (FT-IR) and 13CNMR. In this study, we used citric acid (CA) as a crosslinking agent, mixed with CGH to perform a pad-dry-cure treatment on wool fabric to study its crosslinking effects with the help of FT-IR and scanning electron microscopy (SEM). Antimicrobial activity and wash fastness of CGH treated wool fabrics were also investigated.