Preparation method of modified powder polyvinylidene fluoride grafted styrene sulfonated electrolyte membrane
A polyvinylidene fluoride and styrene sulfonation technology, which is applied in circuits, fuel cells, electrical components, etc., can solve problems such as the influence of conductivity and methanol permeability, and achieves fewer synthesis steps, simple preparation process, and excellent conductivity performance. Effect
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Embodiment 1
[0019] The preparation method is as follows:
[0020] (1) Weigh 4g of polyvinylidene fluoride powder and disperse it in methanol solution, in which 8mL of methanol solution is required for each gram of polyvinylidene fluoride, and ultrasonic for 5min to obtain suspension A; (2) mix suspension A with 2.77mol / L Tetramethylammonium hydroxide methanol solution volume ratio is 30:5, measure 5.4mL tetramethylammonium hydroxide methanol solution, add to suspension A, stir in nitrogen atmosphere, make suspension B, After 20 minutes, the suspension of brown powder was obtained, the precipitate was filtered, suction filtered, washed repeatedly with anhydrous methanol, and dried to obtain brown modified polyvinylidene fluoride powder C; (3) press powder C, styrene, The mass ratio of each component of benzoyl oxide is weighed, and 3g of powder C and 0.35g of styrene are added to absolute ethanol, wherein 10mL of absolute ethanol is required for each gram of powder C; then add 0.176g of i...
Embodiment 2
[0022] The preparation method is as follows:
[0023] (1) Weigh 4g of polyvinylidene fluoride powder and disperse it in methanol solution, in which 6mL of methanol solution is required for each gram of polyvinylidene fluoride, and ultrasonic for 5min to obtain suspension A; (2) mix suspension A with 2.77mol / L tetramethylammonium hydroxide methanol solution volume ratio is 30:5, measure 4mL tetramethylammonium hydroxide methanol solution, add to suspension A, stir in nitrogen atmosphere to prepare suspension B, 20min Finally, the suspension of brown powder was obtained, the precipitate was filtered, suction filtered, washed repeatedly with anhydrous methanol, and dried to obtain brown modified polyvinylidene fluoride powder C; (3) according to powder C, styrene, peroxide The mass ratio of each component of benzoyl, weigh 3g of powder C, 0.43g of styrene and add it to absolute ethanol, wherein 10mL of absolute ethanol is required for each gram of powder C; then add 0.05g of ini...
Embodiment 3
[0025] The preparation method is as follows:
[0026] (1) Weigh 4g of polyvinylidene fluoride powder and disperse it in methanol solution, in which 10mL of methanol solution is needed for each gram of polyvinylidene fluoride, and ultrasonic for 5min to obtain suspension A; (2) mix suspension A with 2.77mol / L Tetramethylammonium hydroxide methanol solution volume ratio is 30:3, measure 4mL tetramethylammonium hydroxide methanol solution, add to suspension A, stir in nitrogen atmosphere to prepare suspension B, 20min Finally, the suspension of brown powder was obtained, the precipitate was filtered, suction filtered, washed repeatedly with anhydrous methanol, and dried to obtain brown modified polyvinylidene fluoride powder C; (3) according to powder C, styrene, peroxide The mass ratio of each component of benzoyl is weighed 3g of powder C and 0.88g of styrene and added to absolute ethanol, wherein 10mL of absolute ethanol is required for each gram of powder C; then add 0.08g o...
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