Hydrophobic metal net, preparation method thereof, and application of hydrophobic metal net in oil-water separation
A metal mesh and hydrophobic technology, which is applied in separation methods, liquid separation, grease/oily substances/suspton removal devices, etc., can solve the problems of cumbersome preparation process, harsh preparation conditions, poor material stability, etc., and achieve simple preparation process, The effect of good mechanical properties and high separation efficiency
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Embodiment 1
[0032] Step 1: Cut a metal sintered felt with a diameter of 5 cm and a mesh of 100 microns, put it into a beaker, add 10 ml of acetone to ultrasonically clean it for 20 minutes, take out the metal sintered felt, rinse it repeatedly with deionized water, and then put it into the beaker. After adding 10 ml of deionized water and ultrasonic cleaning for 20 minutes, take it out and put it in an oven, and dry it at 60°C for later use;
[0033] Step 2: Add 2.82g of ionic liquid monomer 1-vinyl-3-octylimidazolium hexafluorophosphate, 0.26g of cross-linking agent divinylbenzene and 0.15g of photoinitiator 2-hydroxy-2-methanol in a beaker Base-1-phenyl-1-acetone, add 1.38g of solvent 1-butyl-3-methylimidazolium hexafluorophosphate, ultrasonically dissolve for 20 minutes, and obtain a homogeneously mixed polymerized monomer solution;
[0034] Step 3: Immerse the dried metal sintered felt in the polymerized monomer solution prepared in step 2, and ultrasonicate for 20 minutes to complete...
Embodiment 2
[0041] refer to Figure 4 , the above-mentioned prepared hydrophobic metal mesh 2 is fixed in the oil-water separation device, adding a dichloroethane / water mixture with a volume ratio of 3:7, dichloroethane 3 can penetrate the hydrophobic metal mesh 2 and flow into the beaker, while water 1 was trapped above the hydrophobic metal mesh.
[0042] refer to Figure 5 , the hydrophobic metal mesh prepared above has an excellent separation effect on the oil-water mixture of n-hexane, toluene, corn oil, methylene chloride and dichloroethane, and the separation efficiency is over 99.55%.
[0043] refer to Figure 6 , the hydrophobic metal mesh prepared above was used to continuously separate dichloroethane / water mixture 100 times at 80°C, the water content in dichloroethane was lower than 1200 mg / kg, and the separation efficiency was above 99.84%.
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Abstract
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