A kind of preparation method and application of polyvinylamine/interpenetrating network structure carbon composite material mixed matrix film
An interpenetrating network structure, carbon composite material technology, applied in the field of gas membrane separation, can solve the problems of poor size screening ability, uncontrollable layer spacing, low selectivity, etc. easy-to-get effect
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Embodiment 1
[0031] Embodiment 1, the preparation of polyvinylamine / interpenetrating network structure carbon composite material mixed matrix membrane, the steps are as follows:
[0032] Step 1, take a polysulfone filter membrane with a molecular weight cut-off of 6000 as a supporting membrane, soak it in 30 ° C, 1% surfactant aqueous solution for 48 h, wash and dry it for later use, and name it product A;
[0033] Step 2. Preparation of polyaniline@carbon nanotube composite material: Add a certain amount of aniline and carboxylated multi-walled carbon nanotubes to 1 mol / L dilute hydrochloric acid solution, and ultrasonically disperse for 2 h to obtain solution B. Then a certain amount of ammonium persulfate was dissolved in dilute hydrochloric acid solution of the same concentration to form solution C, and the two solutions were mixed and then ultrasonically reacted for 4 h. After the reaction, the product was washed with water and ethanol until the pH was 3-5, and dried for 24 h to obtai...
Embodiment 2
[0037] Embodiment 2, the preparation of polyvinylamine / interpenetrating network structure carbon composite material mixed matrix membrane, the steps are as follows:
[0038] Step 1, take the polysulfone filter membrane with a molecular weight cut-off of 6000 as the support membrane, soak it in 30 ° C, 2% surfactant aqueous solution for 48 h, wash and dry it for later use, and name it product A;
[0039] Step 2. Preparation of polyaniline@carbon nanotube composite material: Add a certain amount of aniline and carboxylated multi-walled carbon nanotubes to 1 mol / L dilute hydrochloric acid solution, and ultrasonically disperse for 2 h to obtain solution B. Then a certain amount of ammonium persulfate was dissolved in dilute hydrochloric acid solution of the same concentration to form solution C, and the two solutions were mixed and then ultrasonically reacted for 4 h. After the reaction, the product was washed with water and ethanol until the pH was 3-5, and dried for 24 h to obta...
Embodiment 3
[0043] Example 3, the preparation of polyvinylamine / interpenetrating network structure carbon composite mixed matrix membrane, the steps are as follows:
[0044] Step 1, taking the molecular weight cut-off as a microporous filter membrane of 6000 as a supporting membrane, soaking in 30 ° C, 3% surfactant aqueous solution for 48 h, cleaning and drying for later use, named product A;
[0045] Step 2. Preparation of polyaniline@carbon nanotube composite material: Add a certain amount of aniline and carboxylated multi-walled carbon nanotubes to 1 mol / L dilute hydrochloric acid solution, and ultrasonically disperse for 2 h to obtain solution B. Then a certain amount of ammonium persulfate was dissolved in dilute hydrochloric acid solution of the same concentration to form solution C, and the two solutions were mixed and then ultrasonically reacted for 4 h. After the reaction, the product was washed with water and ethanol until the pH was 3-5, and dried for 24 h to obtain a polyanil...
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