Preparation method of polyacrylonitrilePAN/polyimidePI composite nano-fibers by electrospinning, and carbon fibers, activated carbon fibers therefrom

摘要

The present invention relates to an ultrafine polyacrylonitrile-polyimide composite fiber and a method for producing carbon fiber and activated carbon fiber using the same, and to prepare a spinning solution by mixing two kinds of carbon fiber precursors, and then to a high voltage to the spinning solution. (˜50 kV) was added and electrospun, followed by oxidation stabilization or imidization to prepare incompatible fibers, which were activated under carbonization or air atmosphere in an inert atmosphere to produce ultrafine carbon fibers and activated carbon fibers. The carbon fiber and the active carbon fiber prepared from the composite components of the present invention have a very large specific surface area compared to the volume, so that the electrode material for the electric double layer supercapacitor, the electrode material for the fuel cell, the reinforcing material for the composite material, the catalyst support, and the high performance adsorption It can be used as a material.;Electrospinning, polyacrylonitrile, polyimide, nano carbon fiber, nano activated carbon fiber