Preparation method of flat ceramic membrane support body and ceramic pug thereof
A ceramic mud and support technology, applied in the field of water purification, can solve the problems of low pure water flux and low strength of a flat ceramic membrane, and achieve the effects of high chemical composition purity, reduced sintering temperature, and strong corrosion resistance.
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[0025] Example 1
[0026] The ceramic mud material of the thin-walled flat ceramic membrane support is:
[0027] (1) Solid raw materials: 70wt% alumina powder with an average particle size of 25μm, 10wt% alumina powder with an average particle size of 3μm, starch 10wt%, talc 10wt%, total mass 100kg;
[0028] (2) Liquid raw materials: 22wt% polyethylene glycol with an average molecular weight of 400, 8wt% glycerin, 70wt% pure water, and a total mass of 20kg;
[0029] The weight ratio of solid raw material and liquid raw material is 5:1.
[0030] Preparation of thin-walled flat ceramic membrane support:
[0031] (1) Preparation of ceramic mud: firstly mix the solid raw materials and the liquid raw materials uniformly, and then add the liquid raw materials to the continuously stirred solid raw materials by spraying, and then put them in a sealed Stale in the box for 12 hours to get mud;
[0032] (2) The preparation of the blank: the two-stage screw extrusion molding method is adopted, the m...
Example Embodiment
[0036] Example 2
[0037] The ceramic mud material of the thin-walled flat ceramic membrane support is:
[0038] (1) Solid raw materials: 65wt% of alumina powder with an average particle size of 30μm, 15wt% of alumina powder with an average particle size of 7μm, 10wt% of methyl cellulose, 10wt% of talc, and a total mass of 120kg;
[0039] (2) Liquid raw materials: 25wt% polyacrylic acid with an average molecular weight of 72, 10wt% glycerin, 65wt% pure water, with a total mass of 20kg;
[0040] The weight ratio of solid raw material and liquid raw material is 6:1.
[0041] Preparation of thin-walled flat ceramic membrane support:
[0042] (1) Preparation of ceramic mud: firstly mix the solid raw material and the liquid raw material uniformly, and then add the liquid raw material to the continuously stirred solid raw material by spraying, and then put it into Stale for 18h in a closed box to get mud;
[0043] (2) The preparation of the blank: the two-stage screw extrusion molding method i...
Example Embodiment
[0047] Example 3
[0048] The ceramic mud material of the thin-walled flat ceramic membrane support is:
[0049] (1) Solid raw materials: 55wt% of alumina powder with an average particle size of 35μm, 15wt% of alumina powder with an average particle size of 5μm, 15wt% of corn flour, 15wt% of mica powder, total mass 140kg;
[0050] (2) Liquid raw materials: 20wt% polyethylene glycol with a molecular weight of 400, 5wt% of polyester with a molecular weight of 85, 75wt% of pure water, and a total mass of 20kg;
[0051] The weight ratio of solid raw material and liquid raw material is 7:1.
[0052] Preparation of thin-walled flat ceramic membrane support:
[0053] (1) Preparation of ceramic mud: firstly mix the solid raw materials and the liquid raw materials uniformly, and then add the liquid raw materials to the continuously stirred solid raw materials by spraying, and then put them in a sealed Stale in the box for 24 hours to get mud;
[0054] (2) The preparation of the blank: the two-sta...
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