CMCS/SF复配整理非织造物基抗菌滤材及性能

Properties of CMCS/SF composite finished non-woven base antibacterial filter material

利用羧甲基壳聚糖(CMCS)与丝素蛋白(SF)复配对非织造物进行整理来开发织物基抗菌滤材,以红外光谱、X射线衍射、回潮与力学性能等指标表征分析复配溶液中羧甲基壳聚糖与丝素蛋白质量分数的关系,以整理织物增重率表征复配溶液的最佳浓度。测试结果表明:选择质量分数为12%,其中羧甲基壳聚糖质量分数为15%的复配溶液对织物进行整理,可使织物具有较佳的结构稳定性、回潮率与力学性能。在此工艺下,整理织物对铜离子的吸附量可达35.456 mg/g,水洗15次后,吸附量为未洗时的58.57%;对金黄色葡萄球菌与大肠埃希菌的抑菌率接近40%,水洗10次后,抑菌率为未洗整理织物的67.06%与62.57%。综合分析认为:利用羧甲基壳聚糖与丝素蛋白复配整理非织造物对开发织物基抗菌滤材具有较强的可行性。

Fabric-based antibacterial filter material is developed by using carboxymethyl chitosan(CMCS)and silk fibroin(SF)to finish non-woven materials.The relationship between the mass fraction of carboxymethyl chitosan to silk fibroin in the complex solution is characterized by infrared spectrum,X-ray diffraction,moisture recovery and mechanical properties.The optimal concentration of the compound solution is analyzed by the weight gain rate characterization of finished fabric.The results show that the fabrics has better structural stability,moisture recovery and mechanical properties when the mass fraction of the compound solution is 12%and the content of carboxymethyl chitosan is 15%.Under this process,the adsorption capacity of copper ions on the finished fabric can reach up to 35.456 mg/g,and after washed 15 times,the adsorption capacity is 58.57%of unwashed.The antibacterial rate of Staphylococcus aureus and Escherichia coli is nearly 40%,and after washing 10 times,the antibacterial rate is 67.06%and 62.57%of unwashed finished fabrics.The comprehensive analysis shows that the use of carboxymethyl chitosan and silk fibroin as a composite finishing agent for non-woven fabrics has strong feasibility in developing fabric based antibacterial filter materials.