Self-luminous polymer ultrafiltration membrane preparation method and self-luminous polymer ultrafiltration membrane
A polymer and ultrafiltration membrane technology, applied in ultrafiltration, chemical instruments and methods, membrane technology, etc., can solve the problems of membrane fouling, difficult to accurately evaluate and measure the fouling degree of polymer ultrafiltration membrane, strong hydrophobicity, etc. Achieve the effect of improving hydrophilicity, good anti-pollution performance, and improving molecular rigidity
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Embodiment 1
[0029] Accurately weigh 10g of pretreated polyethersulfone (PES) powder, dissolve it in 89.6g of dimethylformamide (DMF) solvent, add 0.1g of polyethylene glycol (PEG), the mass ratio of PES to PEG is 10:0.1, stirred at 60°C for 24 hours to obtain a homogeneous solution. Access to N 2 To isolate the homogeneous solution from the air, 0.05gSrAl 2 o 4 ·Tb 3+ (PES and SrAl 2 o 4 ·Tb 3+ The mass ratio is 10:0.05) into this homogeneous solution, then control the magnetic stirring device to stir the homogeneous solution and the ultrasonic vibration homogeneous solution with a rotating speed of 2500 rpm, stop the magnetic stirring and ultrasonic vibration after 48h and let it stand for 5 Minutes, a stable suspension solution is obtained, and then the suspension solution is taken out and scraped by a film scraper to form a film, that is, a self-luminous polymer ultrafiltration membrane is obtained.
[0030] Place the newly prepared self-luminous polymer ultrafiltration membrane...
Embodiment 2
[0031] Example 2: Accurately weigh 10 g of pretreated polyethersulfone (PES) powder, dissolve it in 89.6 g of dimethylformamide (DMF) solvent, add 0.6 g of polyethylene glycol (PEG), PES and PEG The mass ratio of 10:0.6 was stirred at 60°C for 24 hours to obtain a homogeneous solution. Access to N 2 Keep the homogeneous solution away from the air, 0.1gSrAl 2 o 4 ·Tb 3+ (PES and SrAl 2 o 4 ·Tb 3+ The mass ratio is 10:0.1) into this homogeneous solution, and then control the magnetic stirring device to stir the homogeneous solution and the ultrasonic vibration homogeneous solution with a rotating speed of 2500 rpm, stop the magnetic stirring and ultrasonic vibration after 48h and let it stand for 5 Minutes, a stable suspension solution is obtained, and then the suspension solution is taken out and scraped by a film scraper to form a film, that is, a self-luminous polymer ultrafiltration membrane is obtained.
[0032]Place the newly prepared self-luminous polymer ultrafilt...
Embodiment 3
[0034] Accurately weigh 10g of the pretreated PES powder, dissolve it in 89.6g of DMF solvent, add 0.8g of PEG (the mass ratio of PES to PEG is 10:0.8), and stir at 60°C for 24h to obtain a homogeneous solution; N 2 Keep the homogeneous solution away from the air, 0.1gSrAl 2 o 4 ·Tb 3+ (PES and SrAl 2 o 4 ·Tb 3+ The mass ratio is 10:0.1) into this homogeneous solution, and then control the magnetic stirring device to stir the homogeneous solution and the ultrasonic vibration homogeneous solution with a rotating speed of 2500 rpm, stop the magnetic stirring and ultrasonic vibration after 48h and let it stand for 5 Minutes, a stable suspension solution is obtained, and then the suspension solution is taken out and scraped by a film scraper to form a film, that is, a self-luminous polymer ultrafiltration membrane is obtained.
[0035] Place the newly prepared self-luminous polymer ultrafiltration membrane in deionized water for more than 24 hours, and change the water every...
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