JPS54131581A - Improvement of cation exchange membrane - Google Patents
Improvement of cation exchange membraneInfo
- Publication number
- JPS54131581A JPS54131581A JP3925678A JP3925678A JPS54131581A JP S54131581 A JPS54131581 A JP S54131581A JP 3925678 A JP3925678 A JP 3925678A JP 3925678 A JP3925678 A JP 3925678A JP S54131581 A JPS54131581 A JP S54131581A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- exchange membrane
- film
- cation exchange
- dipped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To manufacture cation exchange membrane of excellent OH- permeation inhibiting property by the procedure in which a di- or polyamine is reacted onto the one side of a fluoro(F)-polymer membrane with sulfonylhalide groups followed by treatment at high temperature and hydrolysis, and then the membrane thus obtained is dipped in PEG followed by a heat treatment and dipping in a NaOH solution.
CONSTITUTION: A fluoro(F)-polymer with sulfonylhalide groups on its side chains is made into a film, and then a di- or polyamine is reacted to the one side of the film, in which case the thickness of the layer to be reacted with amine is preferably in the range of 0.01 to 80 %. Then, the film is heated to a temperature between 170°C and the deterioration temperature of the polymer film, preferably 190 to 300°C, and then subjected to a hydrolysis as needed. The ion exchange membrane thus obtained is then dipped in polyethyleneglycol(PEG) for 5 to 50 hours, where the PEG used is one of a molecular weight of less than 700. Then, the membrane is put between flat plates, then heated at 80 to 180°C for 30 min to 60 hours, and lastly dipped in a NaOH aqueous solution to manufacture cation exchange membrane having excellent OH ion permeation inhibiting property.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3925678A JPS54131581A (en) | 1978-04-05 | 1978-04-05 | Improvement of cation exchange membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3925678A JPS54131581A (en) | 1978-04-05 | 1978-04-05 | Improvement of cation exchange membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54131581A true JPS54131581A (en) | 1979-10-12 |
Family
ID=12548050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3925678A Pending JPS54131581A (en) | 1978-04-05 | 1978-04-05 | Improvement of cation exchange membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54131581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100461227B1 (en) * | 2001-01-31 | 2004-12-13 | 가부시끼가이샤 도시바 | Filter, reverse-washing method of filter, filtering unit and power plant |
-
1978
- 1978-04-05 JP JP3925678A patent/JPS54131581A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100461227B1 (en) * | 2001-01-31 | 2004-12-13 | 가부시끼가이샤 도시바 | Filter, reverse-washing method of filter, filtering unit and power plant |
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