A kind of nitrogen and oxygen gas separation composite membrane and preparation method thereof
A nitrogen-oxygen gas, composite membrane technology, applied in separation methods, gas treatment, semi-permeable membrane separation, etc., can solve problems such as the inability to meet large-scale industrial applications, and achieve the effect of small pore size, large porosity, and good support.
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Embodiment 1
[0025] Below will combine specific embodiment and appended figure 1 The present invention is described in detail: embodiment 1: the preparation one of composite film:
[0026] The present embodiment adopts following method to prepare composite film:
[0027] Weigh raw materials according to the following weights: 50g stainless steel fiber, 100g glass fiber, 120g silicon ethoxide, 60g titanium isopropoxide, 100g aluminum ethoxide, 300ml ethanol, 600ml butanol, 50g magnesium chloride, 40g sodium nitrate.
[0028] Substrate material preparation: stainless steel fiber and glass fiber are mixed and cross-woven into such as figure 1 Mesh base material as shown;
[0029] Metal gel preparation: Dissolve silicon ethoxide, titanium isopropoxide, and aluminum ethoxide in a mixed solution of ethanol and butanol, and stir at a rate of 1200r / min for 5 minutes, then add magnesium chloride and sodium nitrate and stir evenly to obtain a mixture, adjust The pH of the mixture is 4, the water ...
Embodiment 2
[0031] Embodiment 2: the preparation two of composite film:
[0032] The present embodiment adopts following method to prepare composite film:
[0033] Weigh raw materials according to the following weights: 50g stainless steel fiber, 100g glass fiber, 120g silicon ethoxide, 60g titanium isopropoxide, 100g aluminum ethoxide, 300ml ethanol, 600ml butanol, 50g magnesium chloride, 40g sodium nitrate.
[0034] Substrate material preparation: stainless steel fiber and glass fiber are mixed and cross-woven into such as figure 1 Mesh base material as shown;
[0035] Metal gel preparation: Dissolve silicon ethoxide, titanium isopropoxide, and aluminum ethoxide in a mixed solution of ethanol and butanol, and stir at a rate of 1200r / min for 5 minutes, then add magnesium chloride and sodium nitrate and stir evenly to obtain a mixture, adjust The pH of the mixture is 4, the water content of the mixture is 30%, and heated to 100° C., while stirring at a stirring speed of 2000 r / min until...
Embodiment 3
[0037] Embodiment 3: the preparation three of composite film
[0038] The present embodiment adopts following method to prepare composite film:
[0039] Weigh raw materials according to the following weights: 80g stainless steel fiber, 100g glass fiber, 120g silicon ethoxide, 60g titanium isopropoxide, 100g aluminum ethoxide, 300ml ethanol, 600ml butanol, 50g magnesium chloride, 40g sodium nitrate.
[0040] Substrate material preparation: stainless steel fiber and glass fiber are mixed and cross-woven into such as figure 1 Mesh base material as shown;
[0041] Metal gel preparation: Dissolve silicon ethoxide, titanium isopropoxide, and aluminum ethoxide in a mixed solution of ethanol and butanol, and stir at a rate of 1200r / min for 5 minutes, then add magnesium chloride and sodium nitrate and stir evenly to obtain a mixture, adjust The pH of the mixture is 4, the water content of the mixture is 30%, and heated to 100° C., while stirring at a stirring speed of 2000 r / min until ...
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Abstract
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