Method for preparing oil-water separation filtration membrane material
A technology for oil-water separation and membrane filtration, which is applied in separation methods, liquid separation, and semi-permeable membrane separation. Effects of mechanical strength, low membrane fouling, and high water flux
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Embodiment 1
[0029] (1) The molecular weight is Mw=2×10 4 g / mol polyvinyl alcohol was dissolved in deionized water at a temperature of 80°C, fully stirred for 5 hours until the polyvinyl alcohol was completely dissolved, and ultrasonically degassed for 1 hour to obtain a clear and transparent aqueous solution of polyvinyl alcohol with a mass fraction of 10%;
[0030] (2) Add 20 parts of dodecafluoroheptyl acrylate and 1 part of initiator Irgacure651 to the remaining amount of N,N-dimethylformamide, stir at room temperature for 5 hours in the dark, and then disperse by ultrasonic for 20 minutes in the dark After making the UV curing solution;
[0031] (3) Inject the polyvinyl alcohol solution and the UV curing system into the spinning syringe (9# needle), place them in the spinning equipment, and electrospin side by side, such as figure 1 Said, adjust the polyvinyl alcohol spinning voltage to be 15kV, the flow rate of the spinneret spinning solution is 1mL / h; the UV curing solution spinnin...
Embodiment 2
[0033] (1) The molecular weight is Mw=1×10 5 g / mol polyvinyl alcohol was dissolved in deionized water at a temperature of 80°C, fully stirred for 8 hours until the polyvinyl alcohol was completely dissolved, and ultrasonically degassed for 2 hours to obtain a clear and transparent aqueous solution of polyvinyl alcohol with a mass fraction of 10%;
[0034] (2) Add 40 parts of tricyclodecane dimethanol diacrylate and 3 parts of initiator Darocure 1173 to the remaining butanol, stir at room temperature for 8 hours in the dark, and then ultrasonically disperse in the dark for 30 minutes to obtain UV curing solution;
[0035] (3) Inject the polyvinyl alcohol solution and the UV curing system into the spinning syringe (9# needle), place them in the spinning equipment, and electrospin side by side, such as figure 1Said, adjust the polyvinyl alcohol spinning voltage to be 20kV, the flow rate of the spinneret spinning solution is 1mL / h; the UV curing solution spinning voltage is 5kV, ...
Embodiment 3
[0037] (1) The molecular weight is Mw=5×10 5 Dissolve g / mol polyoxyethylene in deionized water at a temperature of 30°C, stir thoroughly for 10 hours until the polyoxyethylene is completely dissolved, and ultrasonically defoam for 3 hours to obtain a clear and transparent polyoxyethylene aqueous solution with a mass fraction of 10%;
[0038] (2) Add 50 parts of polyethylene glycol diacrylate and 1 part of initiator WB-4785 to the remaining amount of deionized water, stir at room temperature for 5 hours in the dark, and then ultrasonically disperse in the dark for 20 minutes to obtain UV curing solution;
[0039] (3) Inject the polyoxyethylene solution and the UV curing system into the spinning syringe (9# needle), place them in the spinning equipment, and electrospin side by side, such as figure 1 Said, the adjustment polyvinyl alcohol spinning voltage is 25kV, and the flow rate of spinneret spinning solution is 2mL / h; The UV curing solution spinning voltage is 8kV, and the f...
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Abstract
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