Polyacrylonitrile/multi-walled carbon nanotubes/polyurethane electrospun nanofiber membranes for sports equipment

The polyacrylonitrile/multi-walled carbon nanotubes nanofiber membranes with different orientations were prepared from acidified multi-walled carbon nanotubes (MWCNTs) and polyacrylonitrile (PAN) by innovative electrospun and hot stretching methods. It was found that PAN/MWCNTs has the best tensile properties when the content of carbon nanotubes was 0.5%, which was about 24% higher than that of pure PAN nanofiber membrane. The PAN/MWCNTs nanofiber membrane and thermoplastic polyurethane (TPU) composite was prepared with immersion method. MWCNTs can enhance the tensile properties of PAN nanofiber membrane and the thermoplastic composite materials. The modulus and tensile strength of the composite increase, while the elongation at break decreases with the increasing of orientation and hot stretching processing.