Abstract: In this article, PU nanofibrous membranes were successfully prepared by electrospinning. By investigating the effect of major factors such as the concentration of spinning solution and the volume ratio of solvents DMF/Acetone on the morphology, diameter of the electrospun fibers, it explored better process for preparing PU membrane.

Keywords: electrospinning; PU nanofibrous membrane; composite fabric; waterproofness and breathability;stretchability