Dynamic membrane based on nuclear track membrane and preparation method and application of dynamic membrane
A dynamic membrane and nuclear pore membrane technology, applied in the field of materials, can solve the problems of high cost, difficulty in ensuring the stability and complexity of engineering applications, etc., and achieve the effect of improving the difficulty of cleaning, rapid and effective cleaning, and uniform structure
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Embodiment 1
[0035] Example 1: Dynamic membrane based on nuclear pore membrane and preparation method thereof
[0036] A dynamic membrane based on a nuclear pore membrane is prepared as follows:
[0037] (1) Composite the nuclear pore membrane and the non-woven fabric by hot pressing, the hot pressing temperature is 80° C., the time is 10 seconds, and the pressure is 0.5 bar to obtain a composite membrane;
[0038] (2) the precoat solution (0.2 g / aqueous solution of lin clay) is passed through the composite membrane obtained in step 1) under the condition of 0.5 bar at a filtration pressure, and a mud cake layer is formed on the surface of the nuclear pore membrane after 20 minutes.
[0039] The dynamic membrane based on the nuclear pore membrane obtained in this embodiment is composed of a substrate, a nuclear pore membrane and a mud cake layer from bottom to top;
[0040] Wherein, the material constituting the mud cake layer is kaolin, the thickness of the mud cake layer is 2 mm, and th...
Embodiment 2
[0043] Example 2: Dynamic membrane based on nuclear pore membrane and its preparation method
[0044] A dynamic membrane based on a nuclear pore membrane is prepared as follows:
[0045] (1) Composite the nuclear pore membrane and the non-woven fabric by hot pressing, the hot pressing temperature is 100° C., the time is 15 seconds, and the pressure is 0.5 bar to obtain a composite membrane;
[0046] (2) the precoat solution (0.6 g / liter aqueous solution of gac) is passed through step 1) gained composite membrane under the condition of 0.5 bar at filtration pressure, promptly forms mud cake layer on nuclear pore membrane surface after 30 minutes.
[0047] The dynamic membrane based on the nuclear pore membrane obtained in this embodiment is composed of a substrate, a nuclear pore membrane and a mud cake layer from bottom to top;
[0048] Wherein, the material constituting the mud cake layer is activated carbon, the thickness of the mud cake layer is 1 mm, and the pore diameter...
Embodiment 3
[0051] Example 3: Dynamic membrane based on nuclear pore membrane and its preparation method
[0052] A dynamic membrane based on a nuclear pore membrane is prepared as follows:
[0053] (1) Composite the nuclear pore membrane and the non-woven fabric by hot pressing, the hot pressing temperature is 120° C., the time is 10 seconds, and the pressure is 0.5 bar to obtain a composite membrane;
[0054] (2) the precoat solution (0.5 g / liter aqueous solution of diatomite) is passed through the composite membrane obtained in step 1) under the condition of 0.5 bar at a filtration pressure, and a mud cake layer is formed on the surface of the nuclear pore membrane after 15 minutes.
[0055] The dynamic membrane based on the nuclear pore membrane obtained in this embodiment is composed of a substrate, a nuclear pore membrane and a mud cake layer from bottom to top;
[0056] Wherein, the material constituting the mud cake layer is diatomite, the thickness of the mud cake layer is 3 mm,...
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