壳聚糖抗菌整理棉织物的研究

Treatment of cotton fabrics using chitosan antimicrobial agent

选择脱乙酰度90％以上，粘均分子量4．5×10^5-5．0×10^5（占60％）与1．0×10^5～1．5×10^5（占40％）组合的壳聚糖原料，采用5％壳聚糖溶解于6％柠檬酸溶液可获得淡黄色透明壳聚糖溶液，与氨基硅微乳复配制得了一种高效的壳聚糖抗菌整理剂。结果表明，经这种整理剂整理的棉织物洗涤30次后，对金黄色葡萄球菌和大肠杆菌仍保持较高的抗菌性。

The blended chitosan with a deacetylation degree over 90%, a viscosity-average molecular weight from 4.5 10^5 to 5.0 × 10^5 , amounted for 60% of the total weight, and a viscosity-average molecular weight from 1.0 × 10^5 to 1.5 × 10^5 , accounted for 40% was used. An effective chitosan antimicrobial agent was made from amino-organic-silicon micro-emulsion, evenly blended with 5% chitosan dissolved in 6% citric acid solution. Results show that the cotton fabrics treated with this agent exhibit good antimicrobial properties against staphylococcus aureus and Escherichia coli after 30 laundering cycles.