A Novel Chitosan 3-Amino-1,2,4-triazole Hybrid: Preparation and Its Effects on Cotton Fabric properties

Publication date: Available online 11 October 2016 Source:Journal of Taibah University for Science Author(s): Asmaa Aboelnaga, Sahar Shaarawy, Mohamed Hagar A hybrid of chitosan and 3-amino-1,2,4-triazole was prepared by semi wit method, where this method allows the adsorption of the triazole molecules on the chitosan surface. Moreover, an easy method for application of this hybrid to cotton fabric was established. A tensional strength, uniformity and compatibility of the hybrid components in forming of a strong film were studied using different variables; chitosan 3-amino-1,2,4-triazole ratio, fixation temperature and time. The loading of the hybrid to the fabric in absence and presence of cross linker (butane tetra carboxylic acid) were also studied. The best conditions for preparation of the hybrid was 1:4 molar ratio of chitosan to 3-amino-1,2,4-triazole at 60 ˚C for 240min, and that for application of the hybrid to cotton fabric could be achieved using 1:1 molar ratio at 150˚C and 5min curing time. Both hybrid and treated cotton fabric were characterized using FTIR, SEM, TGA, DSC as well as nitrogen content and tensional strength of the treated cotton. Finally, the antibacterial activities of the treated cotton fabric displays 100% activity and excellent effects against gram positive bacteria, S. aureus and gram negative E. coli.

Source: Journal of Taibah University for Science - October 11, 2016 Category: Science Source Type: research