静电纺丝热塑性聚氨酯纳米纤维的制备  

Preparation of Thermoplastic Polyurethane Nanofiber by Electrospinning

作　　者：张丽[1] 王娇娜[1] 李从举[1] 

机构地区：[1]北京服装学院材料科学与工程学院北京市服装材料研究开发与评价重点实验室,北京100029

出　　处：《聚氨酯工业》2013年第3期29-31,共3页Polyurethane Industry

基　　金：国家自然科学基金项目(项目号:51073005);北京市自然科学基金项目(项目号:2112013);北京市属高等学校人才强教深化计划(IHLB);纺织之光青年基金

摘　　要：将N,N-二甲基甲酰胺(DMF)和四氢呋喃(THF)按体积比0∶4、1∶3、2∶2、3∶1、4∶0混合作为溶剂,确定配比后,在不同浓度、电压下对热塑性聚氨酯(TPU)溶液进行静电纺丝。结果表明,DMF与THF的体积比对聚氨酯静电纺丝纤维的形貌、直径及其均匀性有明显影响,当混合溶液体积比为2∶2,浓度为0.18 g/mL,电压为26 kV时,TPU纺丝液纺丝效果最佳,得到最理想的纤维;纤维直径随DMF含量的增多而减小,但当DMF含量过多时,纤维上容易出现液滴,纤维形貌变差;TPU纺丝液浓度增大,纤维直径增大;电压增大,纤维直径减小。Solvents of dimethylformadide（DMF） and tetrahydrofuran（THF） were mixed with volume proportion 0 ： 4,1 ： 3,2 ： 2,3 ： 1,4 ： 0. The solutions were electrospun under the different concentrations and different voltages after solvent ratio selected. The results showed that the proportional volume of DMF and THF had a significant impacted on morphology, diameter and uniformity of the electrospun nanofiers. When the proportional volume of DMF and THF was 2：2,tile concentration was 18 g/mL and the voltage was 26 kV, the most ideal nanofiber was obtained. Fiber diameter decreased with the increaseing of DMF content. However, when the DMF content increased to a certain degree, the droplets were appeared on fibers and the morphology of fiber became worse. The fiber diameter increased with the concentration increasing and decreased with the voltage increasing.

关 键 词：热塑性聚氨酯 静电纺丝 配比 浓度 电压 

分 类 号：TQ334.1[化学工程—橡胶工业]