A method for producing a polymer electrolyte membrane

Abstract

The application discloses a preparation method of a polymer electrolyte membrane.(1) A solvent is added into a reaction container, a polymer is added while stirring, heating is performed, and then stirring is performed again to prepare a polymer solution, and purification is performed after the polymer solution is restored to room temperature; (2) the purified polymer solution is added into the reaction container, stirring is performed, heating is performed, a modifier is then added, continuous stirring is performed, and the solution is restored to room temperature for use; (3) a defoaming machine is used for defoaming, and then scraping coating is performed to form, and then three-step drying is performed to obtain the polymer electrolyte membrane. Through optimization of the temperature of the three-step drying and cooperation of drying time, the application not only solves the problem of poor reliability of the membrane prepared by absorbing water in air due to the polymer, but also avoids generation of a bubble porous membrane.

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