SiO2@sPS-modified polymer hybrid proton exchange membrane and preparation method thereof
A proton exchange membrane and polymer technology, which is applied in the field of polymer hybrid proton exchange membrane and its preparation, can solve problems such as the decline of proton conductivity, and achieve the effects of easy batch production, simple operation process and warm preparation conditions.
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[0027] Configure 232.5 mL of a mixed solution of water and ethanol at a volume ratio of 1:2.3; then, add 17.5 mL of commercially available ammonia solution and mix well; then, add 20 mL of tetraethyl orthosilicate (TEOS ), stirred at 400rpm, and reacted at 30°C for 1h; finally, after centrifugation-absolute ethanol washing-drying and other steps, 5.2g of silica pellets (SiO 2 ).
[0028] Prepare SiO with a mass volume ratio of 2‰ 2 / ethanol dispersion 250mL, and ultrasonic to help disperse; then, add 15mL 3-(trimethoxysilyl)propyl-2-methyl-2-acrylate (MPS), under stirring, at 40℃ The reaction was carried out for 24 hours; finally, after centrifugation-absolute ethanol washing-drying and other steps, the surface-modified silica pellets with carbon-carbon double bonds ("SiO 2 -=”).
[0029] Preparation of "SiO2" with a mass volume ratio of 1.04% 2 -=” / water dispersion 25mL, and ultrasonic to help disperse; pass nitrogen into the dispersion (N 2 ) 1h later, add 1.6mL styrene...
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