Preparation method of anti-ultraviolet konjac composite film

The invention provides a preparation method of an anti-ultraviolet konjac composite film. According to the preparation method, a konjac glucomannan sol film is prepared eluting, drying, grinding and screening konjac refined powder to obtain konjac glucomannan, putting the konjac glucomannan into a container, adding glycerol, silver bromide and water, stirring to obtain a mixed solution, adding graphene oxide into the mixed solution, stirring to obtain konjac glucomannan sol, and carrying out film formation and bubble removal on the konjac glucomannan sol; an aramid fiber sol film is prepared by mixing and stirring the obtained konjac glucomannan and an aramid fiber nanofiber solution to obtain aramid fiber sol, and carrying out film formation and bubble removal on the aramid fiber sol; and a konjac glucomannan composite film is prepared drying the konjac glucomannan sol film and the aramid fiber sol film at high temperature to obtain the konjac glucomannan composite film. The problem of compatibility between