Polyurethane decorated polyamide nanofibrous films with enhanced mechanical performance, waterproof ability and good breathability
1 Introduction Electrospun films are known for the high porosity, large specific surface area and breathability.1 They have wide applications including filtration, dust removal, protect clothes, wound dressing and tissue engineering etc.Through co-axial electropinning,2 dual-jet electrospinning3 and solution blending electrospinning,4 composite electrospun films with multiple functions can be obtained.Surface decoration is one of the most effective methods.5 In this work, the PU decorated PA6 electrospun nanofilms were fabricated by simply immersing the polyamide (PA) electrospun nanofilms in polyurethane (PU) solutions.It was found that the water-proof ability of the PA nanofilms was greatly improved.Moreover, the ultimate tensile strength of PA6 nanofilms was remarkably increased from 6 MPa to 22 MPa.Interestingly, the PA/PU nanomats showed strong water-vapor permeation ability.Such PU decorated PA6 nanofilms are of great potential in wide applications range from wound dressing to protective clothing.
Wentao Hao Caiping Fang Shanshan Wei Wen Yang Peng Cui
School of Chemistry and Chemical Engineering, Hefei University of Technology,Hefei, 230009 P.R.China
国内会议
江西上饶
英文
33-37
2016-08-01（万方平台首次上网日期，不代表论文的发表时间）