Abstract:

2-hydroxypropyltrimethyl ammonium chlorid chitosan (quaternary ammonium salt of chitosan) was synthesized using chitosan and 2,3-epoxypropyltrimethyl ammonium chloride in order to increase the water solubility of chitosan and enhance the bonding between chitosan and fibers. The quaternary ammonium salt of chitosan was then reacted with N-(hydroxymethyl)-acrylamide, and the O-methyl acrylamide quaternary ammonium salt of chitosan (reactive quaternary ammonium salt of chitosan) with reactive bonds and solubility was synthesized. FTIR was used to characterize the structure of the quaternary ammonium salt of chitosan, the reactive quaternary ammonium salt of chitosan and tussah silk before and after finishing. The antibacterial activity of tussah silk fabric treated with the reactive quaternary ammonium salt of chitosan was also studied. The results indicated that the bacterial reduction against S. aureus and E. coli of the finished tussah silk fabric was more than 90% even after 20 launderings.