Composite ultrafiltration membrane material and preparation method thereof
A technology for ultrafiltration membranes and membrane materials, applied in ultrafiltration, chemical instruments and methods, membranes, etc., can solve the problems of poor membrane stability, poor antibacterial properties of ultrafiltration membranes, poor compatibility, etc., to improve compatibility, Good bactericidal and bacteriostatic effect and long-lasting antibacterial performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] Step 1: Prepare 1 g / L dodecyldimethylbenzyl ammonium chloride aqueous solution, stir at room temperature for 1 h and set aside.
[0029] Step 2: Add 2.5 g of α-zirconium phosphate nanopowder into 100 mL of dodecyl dimethyl benzyl ammonium chloride aqueous solution prepared in step 1, and continue to stir for 2 h. After standing for 24 h, filter and 100 mL of acetone, and dried at room temperature to obtain intercalation-modified α-zirconium phosphate nanopowder.
[0030] Step 3: Configure polyethersulfone casting solution: mix the intercalation-modified α-zirconium phosphate nanopowder prepared in step 2 with polyethersulfone, glycerin, and N-methylformamide according to the ratio of 1:15:2:82 Proportionally mixed, stirring and dissolving at 60°C for 12 h, then standing for 12 h for heat preservation and defoaming, and then standing at room temperature for later use to obtain a polyethersulfone casting solution.
[0031] Step 4: Scrape the polyethersulfone casting solu...
Embodiment 2
[0033] Step 1: Prepare 1 g / L dodecyldimethylbenzyl ammonium chloride aqueous solution, stir at room temperature for 1 h and set aside.
[0034] Step 2: Add 3 g of α-zirconium phosphate nanopowder to 100 ml of dodecyl dimethyl benzyl ammonium chloride aqueous solution prepared in step 1, and continue to stir for 2 h. After standing for 24 h, filter and 150 ml of acetone, and dried at room temperature to obtain intercalation-modified α-zirconium phosphate nanopowder.
[0035] Step 3: configure the polyvinylidene fluoride casting solution: the intercalated modified α-zirconium phosphate nano powder prepared in step 2 and polyethersulfone, glycerin and N-methylformamide according to the mass ratio of 2:18: Mixed at a ratio of 2:78, stirred and dissolved at 60°C for 12 h, then stood for 12 h for heat preservation and defoaming, and then stood at room temperature for later use to obtain a polyvinylidene fluoride casting solution.
[0036] Step 4: The polyvinylidene fluoride casting...
Embodiment 3
[0038] Step 1: Prepare a 1 g / L aqueous solution of cetyldimethylbenzyl ammonium chloride and stir at room temperature for 1 h for later use.
[0039] Step 2: Add 2 g of α-zirconium phosphate nanopowder to 300 mL of cetyl dimethyl benzyl ammonium chloride aqueous solution prepared in step 1, and continue to stir for 2 h. After standing for 36 h, filter and 120 ml of acetone, and dried at room temperature to obtain intercalation-modified α-zirconium phosphate nanopowder.
[0040] Step 3: Configure regenerated cellulose casting solution: cellulose (Mw≈ 10.1×10 4 ) 20g was dissolved in 180 g sodium hydroxide / urea mixed aqueous solution, wherein the mass ratio of sodium hydroxide, urea and water in the sodium hydroxide / urea mixed aqueous solution was 5:8:100. Stir until completely dissolved, centrifuge and degas for 30 min, add 2 g of the intercalated modified α-zirconium phosphate nanopowder prepared in step 2 to the transparent cellulose solution, stir for 12 h, then stand at ro...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More