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Hybrid mechanism film and preparation method thereof

A kind of mechanism and thin film technology, applied in the field of mixed mechanism membrane and its preparation, can solve the problems of hybrid membrane limitations and few types, and achieve the effect of simple production method, low cost and high gas selectivity

Inactive Publication Date: 2018-05-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hybrid membranes of inorganic materials and polymers in the prior art are still relatively limited, and there are not many types.

Method used

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  • Hybrid mechanism film and preparation method thereof

Examples

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Effect test

preparation example Construction

[0037] The preparation method of above-mentioned mixing mechanism film, comprises the following steps:

[0038] Step 1. Dissolving the soluble intrinsic microporous polymer in chloroform and stirring evenly, and filtering with a microporous membrane to obtain a filtrate;

[0039] Among them, the soluble intrinsic microporous polymer is a prior art, and can be obtained by means known to those skilled in the art; the amount of chloroform is not particularly limited, as long as it can achieve the purpose of dissolution, usually the mass ratio of the soluble intrinsic microporous polymer to chloroform It is 90mg: 2.5g, the stirring time generally needs 10-60min, the stirring speed is 300r / min, and the micropore of the microporous membrane is less than 4 microns earlier.

[0040] Step 2, adding the metal-organic framework material into chloroform and stirring evenly to obtain a solution;

[0041] Among them, the amount of chloroform is not particularly limited, as long as the purp...

Embodiment 1

[0053] Step 1, take 60mg Eu(NO 3 ) 3 ·6H 2 O, 20 mg H 3 BTC and 40.8mg NaAc·3H 2 O, add 10ml of DMF and 2ml of ethanol to the mixed solution, and react at 60°C for 5h to obtain JUC-32, which is the MOF material;

[0054] Step 2, take 90mg of PIM-1, dissolve in 2.5g of chloroform solution, stir for 30min to mix evenly, filter with microporous membrane to obtain filtrate;

[0055] Step 3: Take 10 mg of JUC-32 obtained in Step 1, dissolve it in 2.5 g of chloroform solution, and stir evenly to obtain a solution;

[0056] Step 4. Mix the filtrate of step 2 and the solution of step 3 and sonicate for 10 minutes to fully mix PIM-1 and JUC-32, and continue to stir for 12 hours to obtain a mixed solution;

[0057] Step 5. Apply the mixed solution obtained in Step 4 evenly on the surface of the porous silica film, and control the solvent to evaporate completely at 20° C. for 48 hours;

[0058] Step 6. Repeat step 5 and three times to obtain a uniform and continuous mixing mechanis...

Embodiment 2

[0060] The method of this example is basically the same as that of Example 1, except that 80 mg of PIM-1 is taken in step 2, and 20 mg of JUC-32 is taken in step 3 for mixing, and the synthesized film is recorded as 20% JUC-32@PIM-1 .

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Abstract

The invention relates to a hybrid mechanism film and a preparation method thereof and belongs to the technical field of a gas separation film. The invention aims to provide the hybrid mechanism film and the preparation method thereof. The hybrid mechanism film is uniform, continuous and long-acting, and has high gas flux, high selectivity, high gas separation property and excellent chemical stability. According to the hybrid mechanism film, a porous silicon dioxide film serves as a substrate, and a mixture of a soluble inherent microporous polymer and a metal organic frame material with the mass ratio of (90-70):(10-30) serves as a surface; and in the preparation process, the soluble inherent microporous polymer and the metal organic frame material are mixed and the surface of the porous silicon dioxide film is coated with the mixture uniformly. The hybrid mechanism film is uniform, continuous and long-acting, has high gas flux and high gas selectivity and has high gas separation property and excellent chemical stability; and the preparation method is simple, low in cost and favorable for industrialization.

Description

technical field [0001] The invention relates to a mixed mechanism membrane and a preparation method thereof, belonging to the technical field of gas separation membranes. Background technique [0002] Fossil energy has been widely used since the second industrial revolution. However, it is accompanied by a sharp increase in the emission of carbon dioxide, which causes the greenhouse effect, causes serious meteorological problems and affects the sustainable development of society. According to reports, the total amount of carbon dioxide produced by human activities in 2017 reached 41 billion tons. According to the National Oceanic and Atmospheric Administration (NOAA), the concentration of carbon dioxide in the atmosphere is increasing year by year. Unfortunately, no major changes are expected in the next 20 years in terms of energy generation and electrical infrastructure. Fossil fuels will still be the main source of energy for human production and life. With the improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/02B01D69/14B01D67/00B01D71/02B01D71/06B01D53/22
CPCB01D53/228B01D67/0079B01D69/02B01D69/148B01D71/027B01D71/06B01D2325/30
Inventor 贲腾裘式纶魏慧欣
Owner JILIN UNIV
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