接枝棉织物纳米银抗菌整理研究

otton fabrics were grafted with methacrylamide, the influences of finishing factors of method of reducing silver ions with reductant on the silver content on grafted fabric were studied, the process conditions were optimized, the utilization rate of silver ion of the process and antibacterial property and washing resistance of finished grafted fabrics were tested, which were compared with finished cotton fabrics. The results showed that the optimum process conditions are that grafting ratio of fabric is 15.05%, dipping temperature is 90℃, dipping time is 40 min, molar ratio of sodium citrate and silver nitrate is 5:1; the utilization rate of silver nitrate for the finishing process is 35.51%; the silver content on grafted fabrics is 575.3 mg/kg, the bacterial inhibition rate for bacillus coli and staphylococcus aureus both reach 99.9%, the finished fabrics have an excellent antibacterial property. After washing 50 times, the retention rate of silver on fabrics is 75.23%, the bacterial inhibition rate for these two kinds of bacteria also maintains 99.9%. The study indicates the process of methacrylamide grafting onto cotton fabrics can increase utilization rate of silver ion, meanwhile, antibacterial property and washing resistance of finished grafted fabrics also are increased.