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利用实验室合成的非水溶性抗菌剂——聚六亚甲基胍十二烷基苯磺酸盐(PHGDBS),与纤维素共同溶解于离子液体中,经干喷湿纺制备了抗菌再生纤维素纤维,并研究了PHGDBS对纤维结构性能的影响。结果表明:所合成的PHGDBS能够溶解于离子液体中,且对细菌和真菌均有很好的抗菌效果。PHGDBS质量分数为2%时制备的再生纤维素纤维,对金黄色葡萄球菌和大肠埃希菌的抗菌率分别达99.7%和94.5%;经水洗15次后,抗菌率仍保持在90%以上。另外,PHGDBS的加入对纤维的表面和截面形态无显著影响,虽然再生纤维素纤维的结晶度和取向度减小,纤维的断裂强度有所下降,但仍可以满足服用性能。
The non-water-soluble antibacterial agent (polyhexamethylene guanidine dodecylbenzenesulfonate) (PHGDBS) synthesized by laboratory was dissolved in ionic liquid together with cellulose, and antibacterial regenerated fiber The effect of PHGDBS on the structural properties of fibers was investigated. The results showed that the synthesized PHGDBS was able to dissolve in ionic liquid and had good antibacterial activity against bacteria and fungi. The antibacterial rate of regenerated cellulose fiber prepared by PHGDBS with mass fraction of 2% reached 99.7% and 94.5% with Staphylococcus aureus and Escherichia coli respectively. After 15 times of washing, the antibacterial rate remained above 90%. In addition, the addition of PHGDBS had no significant effect on the surface and cross-sectional morphology of the fibers. Although the crystallinity and degree of orientation of the regenerated cellulose fibers decreased and the breaking strength of the fibers decreased, the wearing performance of the fibers could still be satisfied.