一种新型抗菌羊毛织物的制备

Preparation of a novel anti-bacterial wool fabrics

将β-环糊精（β-CD）磺化改性后接枝于羊毛织物上,利用＂锚固＂在羊毛织物上的β-CD空腔充载抗菌剂硝酸咪康唑,制备一种新型的抗菌羊毛织物。磺化β-CD接枝羊毛织物最佳工艺条件为：磺化β-CD 60 g/L,无水硫酸钠5 g/L,pH值2-3,于90-100℃的整理浴中保温50-60 min。经磺化β-CD接枝改性后再充载硝酸咪康唑的羊毛织物,其抗菌性能好于未经磺化β-CD改性直接充载硝酸咪康唑的织物。改性织物抗菌性能的耐水性明显优于未经改性的织物。未经改性的织物水洗5次后,抗菌性能基本消失,而改性织物水洗10次后,其抗菌性能仍保持在60%~70%。

β- cyclodextrins（β- CDs） modified by sulfonation were grafted onto wool fabrics and a novel kind of anti-bacterial fabrics was prepared by filling the anti-bacterial agent（miconazole nitrate） into β- CDs＇ caves fixed onto the fabrics. The optimum conditions for sulfonated-β - CD grafting onto wool fabrics were： sulfonated-β- CD 60 g/L, Na2SO4 5 g/L, pH = 2 - 3, dipping the fabrics into solution at 90 - 95 ℃ for 50 - 60 min. Compared with the unmodified fabrics, the fabrics modified with sulfonated-β- CD increased the uptake of antibacterial agent, miconazole nitrate, enhancing the antibacterial properties of the modified fabrics. The binding of β - CD onto the wool fabrics improved the resistance of the entrapped antibacterial agents to washing cycles, prolonging the antibacterial effect. The anti-bacterial abilities of the unmodified fabrics was almost lost when washing 5 times, while sulfonated-β - CD fabrics kept 60% -70% even after washing 10 times.