Mechanical Performance of Electrospun PA6 Nanofiber Membranes

Electrospinning (ES) has been used to produce nanofiber membranes. Because the membranes have specific surface area & porosity, they were widely used as tissue engineering scaffolds, sensor perception membrane, filter material and protective material. The mechanical properties of electrospun nanofiber membrane have significant influence on its applicability and endurance. In this paper, PA6 nanofiber membranes were prepared by ES, the influence caused by the feeding speed of spinning solution & the spinning distance on the mechanical properties was studied. The results indicated that, the lower the feeding speed of spinning solvent, the worse the mechanical property of nanofiber membrane. As the distance between nozzle and collecting mesh increased, the breaking tenacity of the electrospun PA6 membranes decreased. When PA6 was dissolved in 98 % formic acid to obtain 13wt% solution, the voltage was 30kv, the feeding speed was 0.2-0.3ml/l, and the spinning distance was 8-10cm. Therefore the PA6 nanofiber membrane demonstrates favorable mechanical properties.