Preparation method and application of zeolite/polyimide composite film
A polyimide and composite membrane technology, applied in chemical instruments and methods, membranes, membrane technology, etc., can solve the problem of less research on non-solvent-induced phase separation methods, and achieve improved battery charge and discharge performance and uniform pore size distribution , good connectivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] A kind of preparation method of zeolite / polyimide composite membrane, its preparation method comprises the following steps:
[0031] (1) Weigh 0.13g of ZSM-5 type zeolite and 19g of N'N-dimethylacetamide blending at room temperature, then ultrasonic 3h to obtain zeolite dispersion. Add 2 mmol of 4,4'-diaminodiphenyl ether and 2 mmol of 2,2-bis[4-(4-aminophenoxy)phenyl]propane to the prepared zeolite dispersion at room temperature, Stir mechanically under protection to dissolve completely. Then add 4.08mmol of 3,3',4,4'-diphenyl ether tetracarboxylic dianhydride, continue to stir mechanically under the protection of nitrogen, the reaction temperature is 10-15°C, and react for 10 hours to obtain yellow viscous doped The polyamic acid precursor casting solution of zeolite, wherein the mass ratio of zeolite to polyamic acid is 5:100.
[0032] (2) After standing for defoaming, scrape the above-mentioned casting solution on a clean glass plate to obtain a liquid film with a...
Embodiment 2
[0038] A kind of preparation method of zeolite / polyimide composite membrane, its preparation method comprises the following steps:
[0039] (1) 0.13 g of NaA zeolite and 19 g of N-methylpyrrolidone were weighed and blended at room temperature, and then sonicated for 3 hours to obtain a zeolite dispersion. Add 2 mmol of 4,4'-diaminodiphenyl ether and 2 mmol of 2,2-bis[4-(4-aminophenoxy)phenyl]propane to the prepared zeolite dispersion at room temperature, Stir mechanically under protection to dissolve completely. Then add 4.08 mmol of 3,3',4,4'-diphenyl ether tetracarboxylic dianhydride, continue mechanical stirring under the protection of nitrogen, the reaction temperature is 5-10°C, and react for 8 hours to obtain yellow viscous doping The polyamic acid precursor casting solution of zeolite, wherein the mass ratio of zeolite to polyamic acid is 5:100.
[0040] (2) After standing for defoaming, scrape the above-mentioned casting solution on a clean glass plate to obtain a li...
Embodiment 3
[0044] A kind of preparation method of zeolite / polyimide composite membrane, its preparation method comprises the following steps:
[0045] (1) Weigh 0.26g of NaA-type zeolite and 20g of N'N-dimethylacetamide blending at room temperature, then sonicate for 3h to obtain a zeolite dispersion. Add 2 mmol of 4,4'-diaminodiphenyl ether and 2 mmol of 2,2-bis[4-(4-aminophenoxy)phenyl]propane to the prepared zeolite dispersion at room temperature, Stir mechanically under protection to dissolve completely, then add 4.08mmol of 3,3',4,4'-benzophenone tetraacid dianhydride, continue mechanical stirring under nitrogen protection, the reaction temperature is 5-10°C, and react for 10h A yellow viscous polyamic acid precursor casting solution doped with zeolite can be obtained, wherein the mass ratio of zeolite to polyamic acid is 10:100.
[0046] (2) After standing still for defoaming, scrape-coat the above-mentioned casting solution on a clean glass plate to obtain a liquid film with a th...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More