The new clean process of producing common and high performance
viscose-base isomeric carbon
fiber (or film) includes the following steps: alkali and
acid washing material pulp, oxidizing or ammoniating to obtain fireproof isomeric pulp; dissolving the isomeric pulp in alkali solution to obtain spinnable isomeric
viscose solution; debubbling the solution,
spinning, washing with acid and deionized water and other step to obtain common isomeric
viscose tow
fiber or film; damp and heat drafting,
drying to densify, heat shrinking to stabilize to obtain high performance fireproof isomeric viscose tow
fiber or film; further soaking in
ammonium salt aqua, pre-oxidizing, low temperature carbonizing, high temperature carbonizing and graphitizing of the common isomeric viscose tow fiber or film or the high performance fireproof isomeric viscose tow fiber or film to obtain common and high performance viscose-base isomeric carbon fiber or film; and final
surface oxidation,
sizing and
drying to obtain the corresponding product.