Preparation method and application of oil-water separation net membrane
An oil-water separation mesh membrane, copper mesh technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve problems such as complex methods, harsh coating preparation conditions, and easy blocking of mesh holes, and achieve good application prospects. Effect
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[0029] Example 1
[0030] 1) The 400-mesh red copper mesh is ultrasonically cleaned in acetone, absolute ethanol and deionized water, and then cleaned with dilute hydrochloric acid with a mass concentration of 3.65% to remove the surface oxide film. After cleaning, use N 2 Blow dry
[0031] 2) Add 1.69g AgNO 3 Dissolve in 500mL deionized water to prepare AgNO 3 Solution; take 0.2mL ammonia water dropwise into 500mLAgNO 3 In the solution, the solution is placed in an ultrasonic cleaner with 200W ultrasonic dispersion for 5 minutes to completely dissolve to obtain a silver ammonia solution for use; wherein the ammonia water is a commercial product with a mass concentration of 25-28%.
[0032] 3) Put the copper mesh processed in step 1) into the silver ammonia solution and react for 75 seconds before taking it out to obtain a superhydrophilic / underwater superoleophobic mesh, and the prepared superhydrophilic / underwater superoleophobic mesh Place it in a constant temperature drying oven ...
Example Embodiment
[0035] Example 2
[0036] 1) The 400-mesh red copper mesh is ultrasonically cleaned in acetone, absolute ethanol and deionized water in sequence, and then cleaned with dilute hydrochloric acid with a mass concentration of 3.65% to remove the surface oxide film. After cleaning, use N 2 Blow dry
[0037] 2) Add 1.69g AgNO 3 Dissolve in 500mL deionized water to prepare AgNO 3 Solution; take 0.2mL ammonia water dropwise into 500mL AgNO 3 In the solution, the solution is placed in an ultrasonic cleaner with 200W ultrasonic dispersion for 5 minutes until it is completely dissolved, and the silver ammonia solution is obtained for use;
[0038] 3) Put the copper mesh processed in step 1) into the silver ammonia solution and react for 75 seconds before taking it out to obtain a superhydrophilic / underwater superoleophobic mesh, and the prepared superhydrophilic / underwater superoleophobic mesh Place it in a constant temperature drying oven at 90°C for 3 hours to obtain an oil-water separation o...
Example Embodiment
[0041] Example 3
[0042] 1) The 400-mesh red copper mesh is ultrasonically cleaned in acetone, absolute ethanol and deionized water in sequence, and then cleaned with dilute hydrochloric acid with a mass concentration of 3.65% to remove the surface oxide film. After cleaning, use N 2 Blow dry
[0043] 2) Add 1.69g AgNO 3 Dissolve in 500mL deionized water to prepare AgNO 3 Solution; take 0.2mL ammonia water dropwise into 500mL AgNO 3 In the solution, the solution is placed in an ultrasonic cleaner with 200W ultrasonic dispersion for 5 minutes until it is completely dissolved, and the silver ammonia solution is obtained for use;
[0044] 3) Put the copper mesh processed in step 1) into the silver ammonia solution and react for 75 seconds before taking it out to obtain a superhydrophilic / underwater superoleophobic mesh, and the prepared superhydrophilic / underwater superoleophobic mesh Place it in a constant temperature drying oven at 90°C for 3 hours to obtain an oil-water separation m...
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