Silane coupling agent-modified hydrophilic PES/GO (polyether sulfone/graphene oxide) composite film and preparation method for same
A technology of silane coupling agent and composite membrane, which is applied in general water supply saving, chemical instruments and methods, permeation/dialysis water/sewage treatment, etc., can solve the problem that PES membrane is easy to be polluted by hydrophobic substances, and improve hydrophilicity Excellent performance in sex and anti-pollution performance, improvement of permeability, and strong reusability
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[0024] Example 1
[0025] (1) Add 0.3g graphene oxide GO powder to 30mL dimethylformamide, 200W ultrasonic treatment for 2h; add 7.40g polyethersulfone PES and 0.5g pore former PVP, stir at 50℃ for 20h to obtain a uniform Casting liquid: After cooling, degassing and scraping the film, put it in a coagulation bath of deionized water at 70°C, remove the solvent, wash with deionized water, and dry naturally to obtain polyethersulfone PES / graphene oxide GO composite membrane.
[0026] (2) Cut a 3cm×3cm PES / GO composite membrane, place it in a 10% KH570 ethanol solution, magnetically stir for 4 hours, and then wash and dry it with water.
Example Embodiment
[0027] Example 2
[0028] (1) Add 0.3g graphene oxide GO powder to 30mL dimethylformamide, 200W ultrasonic treatment for 2h; add 7.40g polyethersulfone PES and 0.5g pore former PVP, stir at 50℃ for 20h to obtain a uniform Casting liquid: After cooling, degassing and scraping the film, put it in a coagulation bath of deionized water at 70°C, remove the solvent, wash with deionized water, and dry naturally to obtain polyethersulfone PES / graphene oxide GO composite membrane.
[0029] (2) Cut a 3cm×3cm PES / GO composite membrane, place it in a 10% KH570 ethanol solution, magnetically stir for 6 hours, and wash and dry it with water.
Example Embodiment
[0030] Example 3
[0031] (1) Add 0.3g graphene oxide GO powder to 30mL dimethylformamide, 200W ultrasonic treatment for 2h; add 7.40g polyethersulfone PES and 0.5g pore former PVP, stir at 50℃ for 20h to obtain a uniform Casting liquid: After cooling, degassing and scraping the film, put it in a coagulation bath of deionized water at 70°C, remove the solvent, wash with deionized water, and dry naturally to obtain polyethersulfone PES / graphene oxide GO composite membrane.
[0032] (2) Cut a 3cm×3cm PES / GO composite film, place it in a 10% ethanol solution of KH570, magnetically stir for 8 hours, and then wash and dry it with water.
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