Method for making cation exchange membrane through photocuring
A cation exchange membrane and photocuring technology, applied in the field of ion exchange membrane, can solve the problems of air pollution working environment, harsh film forming conditions, limited application scope, etc., and achieve low environmental and human harm, fast polymerization speed, and excellent mechanical properties. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0037] In this embodiment, the sulfonic acid type cation exchange membrane is prepared by photocuring method, and the specific process is as follows:
[0038] (1) Add 100 parts of allyl glycidyl ether, 40 parts of styrene and 30 parts of PVC into a three-necked flask, stir and dissolve in the dark, then add 30 parts of divinylbenzene, 8 parts of initiator 184, and 8 parts of triethanolamine, Stir in the dark for 2 hours to dissolve and make a slurry;
[0039] (2) Squeegee-coat the slurry on a glass plate lined with polyester mesh, and cure it under a 400w UV lamp for 15 minutes;
[0040] (3) Remove the solidified product and treat it in 98% concentrated sulfuric acid for 4 hours to obtain a sulfonic acid ion exchange membrane.
[0041] The sulfonic acid type cation exchange membrane prepared above has a thickness of 0.18mm, an exchange capacity of 2.1meq / g, a water content of 20%, a swelling rate of 2.5% (25°C), and a surface resistance of 1.2Ω·cm 2 (0.5NNaCl aqueous solutio...
Embodiment 2
[0043] In this embodiment, the sulfonic acid type cation exchange membrane is prepared by photocuring method, and the specific process is as follows:
[0044] (1) Add 100 parts of styrene, 20 parts of allyl ether and 20 parts of PVC into a three-necked bottle, stir and dissolve in the dark, add 4 parts of initiator 184, 4 parts of triethanolamine, and stir for 2 hours in the dark to make a slurry material;
[0045] (2) Squeegee-coat the slurry on a glass plate lined with polyester mesh, and cure it under a 400w UV lamp for 15 minutes;
[0046] (3) Remove the solidified product and treat it in 98% concentrated sulfuric acid at 60°C for 12 hours to obtain a sulfonic acid ion exchange membrane.
[0047] The sulfonic acid type cation exchange membrane prepared above has a thickness of 0.21mm, an exchange capacity of 2.5meq / g, a water content of 28%, a swelling rate of 3.5% (25°C), and a surface resistance of 1.5Ω·cm 2 , the tensile strength is 80MPa, and the burst strength is >1...
Embodiment 3
[0049] In this embodiment, the sulfonic acid type cation exchange membrane is prepared by photocuring method, and the specific process is as follows:
[0050] (1) Add 40 parts of allyl mercaptan, 100 parts of styrene and 10 parts of allyl ether into a three-necked flask, stir and dissolve in the dark, add 4 parts of initiator 184 and 4 parts of triethanolamine, and stir for 1 hour in the dark , made into slurry;
[0051] (2) Squeegee-coat the slurry on a glass plate lined with polyester mesh to form a film, and cure it under a 400w ultraviolet lamp for 15 minutes;
[0052] (3) Take off the solidified product, wash it in water, and then oxidize it with 10% hydrogen peroxide to obtain a strongly acidic sulfonic acid ion exchange membrane.
[0053] The sulfonic acid type cation exchange membrane prepared above has a thickness of 0.25mm, an exchange capacity of 2.0meq / g, a swelling rate of 1.8% (25°C), and a surface resistance of 0.8Ω·cm 2 , the tensile strength is 78MPa, and th...
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
tensile strength | aaaaa | aaaaa |
thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com