Surface modification of cotton fabric with nano-silver reduced by urgrass
Urgrass powder is used to reduce silver nitrate into silver nano,and then applied to deal with cotton fabric.The effects of treatment temperature,time and pH value on the antibacterial properties of cotton fabric are investigated.By measuring the diameter of the antibacterial zone,the optimum modified treatment condition is:the best treatment conditions for the antibacterial effect of E.coli are the heating time of 30 min,the heating temperature of 90 ℃,and the pH value of 5.The best treatment conditions for Bacillus subtilis are heating time of 70 min,heating temperature of 80 ℃ and pH value of 6.The experimental results show that the molecular structure of the modified cotton fabric is not destroyed,and the nano-silver is attached to the surface of the cotton fabric,exhibiting excellent antibacterial properties.After 20 washes,the bacterial inhibition can remain above 95％.The fracture strength is slightly reduced,but it still meets the general performance requirements.
万方数据
维普
