【摘要】 利用无针头电极丝式静电纺丝机制备聚酰胺(PA6)纳米纤维膜材料。研究了静电纺工艺条件对PA6纳米纤维膜形貌及直径的影响,探讨了纤维膜力学性能与直径的关系。结果表明,电极丝静电纺丝装置能高效制备光滑、连续、均匀的纳米纤维膜;纤维直径与纺丝液质量分数呈正比关系,质量分数在12%左右时静电纺丝效果最好;当电压为70 k V时,纤维直径最小且分布较集中;接收距离的增加改善纤维直径的均匀性;直径的减小提高膜断裂强度的同时也降低伸长率。更多还原

【Abstract】 A new type of needleless wire electrode electrostatic spinning device was used to fabricate polyamide 6( PA6) nanofiber membrane. The effect of electro-spinning technological conditions to the morphology and diameter of PA6 nanofiber membrane and the relationship of mechanical properties and the diameter were researched. The results show that the wire electrode electrostatic spinning device can efficiently prepare smooth, continuous, uniform nanofiber membrane. There is a positive correlation between fiber diameter and concentration of spinning solution,and with a spinning solution concentration of around 12%,the electrostatic spinning effect is the best. When the voltage is 70 k V,fiber diameter is the smallest and the fiber is distributed intensively relatively. The increase of the receiving distance can improve the uniformity of the fiber diameter,and the decrease of the diameter increase membrane rupture strength and lower elongation.更多还原