海藻酸钙/壳聚糖复合纤维的制备及性能研究  

Preparation and properties of calcium alginate/chitosan composite fiber

作　　者：黄亚飞[1] 朱平[1] 隋淑英[1] 董朝红[1] 刘杰[1] 黄柳云[1] 

机构地区：[1]青岛大学纺织服装学院纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071

出　　处：《合成纤维工业》2017年第1期6-10,共5页China Synthetic Fiber Industry

基　　金：国家自然科学基金(51073122);国家自然科学基金(50773032)

摘　　要：以海藻酸钙纤维为主体,壳聚糖为整理剂,采用交联整理的方法制备一种新型的海藻酸钙/壳聚糖复合纤维;探讨了整理过程中壳聚糖溶液p H值、壳聚糖浓度及海藻酸钙纤维用量对复合纤维吸湿性能的影响,并测定了复合纤维的抗菌性能、力学性能、表面结构及红外光谱。结果表明:相比海藻酸钙纤维,海藻酸钙/壳聚糖复合纤维表面沟槽较小,较为圆润,截面呈现腰子形;当壳聚糖溶液质量浓度为0.5 g/L,溶液p H值为7,海藻酸钙纤维用量为1.2 g时,复合纤维在蒸馏水、生理盐水、人造血浆中吸湿率分别为94.1%,695.0%,680.0%;相比海藻酸钙纤维,复合纤维具有良好的抗菌性能,断裂强力及断裂强度变化不大,断裂伸长率降低了11.14%,性能可达到应用要求;复合纤维的红外光谱表明壳聚糖已交联整理到海藻酸钙纤维上。A novel calcium alginate/chitosan composite fiber was prepared by using calcium alginate fiber as the main fiber and chitosan as the finishing agent. The effects of the chitosan concentration and pH value of chitosan solution and calcium alginate fi- ber amount on the hygroscopicity of the composite fiber were discussed during the finishing process. The antibacterial behavior, mechanical properties and surface structure of the composite fiber were determined. The infrared spectra of the composite fiber were recorded. The results showed that as compared with calcium alginate fiber, calcium alginate/chitosan composite fiber had smaller surface grooves and finer and rounder appearance with kidney cross section ; the hygroscopicity of the composite fiber was 94.1% ,695.0% and 680.0% , respectively, in distilled water, normal saline and artificial blood under the conditions of 0.5 g/ L chitosan solution with the pH value of 7 and 1.2 g calcium alginate fiber; as compared with calcium alginate fiber, the compos- ite fiber exhibited the better antibacterial behavior, almost the equal breaking strength and tenacity and a decreas of 11.14% in the elongation at break , satisfying the application requirement. The infrared spectra results showed that chitosan had been suc- cessfully crosslinked onto the calcium alginate fiber.

关 键 词：海藻酸钙纤维 壳聚糖 复合纤维 交联整理 吸湿性能 抗菌性能 力学性能 

分 类 号：TQ342.94[化学工程—化纤工业]