Preparation method for PVA (polyvinyl alcohol)/ MWNTs (multi-wall carbon nanotubes)-OH conductive composite membrane

The invention relates to a preparation method for a PVA (polyvinyl alcohol)/ MWNTs (multi-wall carbon nanotubes)-OH conductive composite membrane. The preparation method includes dissolving PVA in distilled water to obtain a PVA solution, dispersing MWNTs-OH by a surface dispersant to obtain a MWNTs-OH suspended solution, performing isopyknic mixing on the PVC solution and the MWNTs-OH suspended solution to obtain a mixed solution, performing electrostatic spinning to obtain a non-transparent nanofiber mat, putting the non-transparent nanofiber mat into the water solution for swelling and water absorbing for 5-30 seconds, vacuum-drying the non-transparent nanofiber mat to obtain the PVA/MWNTs-OH conductive composite membrane. The preparation method is simple to operate, mild in reaction condition, non-poisonous and pollution-free and friendly to environment and experimenters, and raw materials used in the preparation method are low in price and easy to get; the obtained transparent membrane has the advantages