A proton exchange membrane with wide operating temperature and its preparation method and application
A technology of proton exchange membrane and operating temperature, applied in electrolyte, non-aqueous electrolyte, solid electrolyte and other directions, can solve the problems of wide operating temperature and unsuitable proton exchange membrane, and achieve the effect of enhancing high and low temperature conductance
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Embodiment 1
[0047] Dissolving polybenzimidazole in dimethyl sulfoxide solution, then adding acrylamide monomer and potassium persulfate to mix to prepare a mixed solution, wherein the mass of acrylamide monomer added is 0.5% of the polybenzimidazole mass The mixed solution was spread on a glass plate and heat-treated, and dried in vacuum at 80°C for 12 hours, so that the acrylamide monomer was polymerized to form a polyacrylamide hydrogel with a porous structure, and the The polyacrylamide hydrogel is located in the lower layer of the polybenzimidazole gel; then, the temperature is raised to 120° C. for 24 hours in a vacuum drying process to remove excess solvent in the film layer, and the initial film layer is obtained; further, the The initial film layer was soaked in water for two days, during which the water was changed every 12 hours, so that the organic solvent in the initial film layer was fully separated, and then dried at 120°C; finally, at 70- Under the condition of 90° C., the ...
Embodiment 2
[0049] Dissolving polybenzimidazole in dimethyl sulfoxide solution, then adding acrylamide monomer and potassium persulfate to mix to prepare a mixed solution, wherein the mass of acrylamide monomer added is 0.8% of the mass of polybenzimidazole times; spread the mixed solution on a glass plate and heat-treat it, and dry it in vacuum at 90°C for 12 hours, so that the acrylamide monomer undergoes a polymerization reaction to form a polyacrylamide hydrogel with a porous structure, and the The polyacrylamide hydrogel is located in the lower layer of the polybenzimidazole gel; then, the temperature is raised to 130° C. for 12 hours in vacuum drying to remove excess solvent in the film layer, and the initial film layer is obtained; further, the The initial film layer was soaked in water for two days, during which the water was changed every 12 hours, so that the organic solvent in the initial film layer was fully separated, and then dried at 130°C; finally at 80°C The proton exchan...
Embodiment 3
[0051] Dissolving polybenzimidazole in dimethyl sulfoxide solution, then adding acrylamide monomer and potassium persulfate to mix to prepare a mixed solution, wherein the mass of acrylamide monomer added is 1.0% of the mass of polybenzimidazole times; spread the mixed solution on a glass plate and heat-treat it, and dry it in vacuum at 85°C for 14 hours, so that the acrylamide monomer undergoes a polymerization reaction to form a polyacrylamide hydrogel with a porous structure, and the The polyacrylamide hydrogel is located in the lower layer of the polybenzimidazole gel; then, the temperature is raised to 140° C. and vacuum drying is carried out for 15 hours to remove excess solvent in the film layer, and the initial film layer is obtained; further, the The initial film layer was soaked in water for two days, during which the water was changed every 12 hours, so that the organic solvent in the initial film layer was fully separated, and then dried at 110°C; finally at 85°C T...
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