JPS644626A - Preparation of porous polyethylene cation-exchange membrane - Google Patents
Preparation of porous polyethylene cation-exchange membraneInfo
- Publication number
- JPS644626A JPS644626A JP62159948A JP15994887A JPS644626A JP S644626 A JPS644626 A JP S644626A JP 62159948 A JP62159948 A JP 62159948A JP 15994887 A JP15994887 A JP 15994887A JP S644626 A JPS644626 A JP S644626A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- cation
- porous
- porous polyethylene
- exchange
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE:To prepare a porous polyethylene cation-exchange membrane, which is excellent in cation-exchange ability and useful for water treatment, metal recovery and other purposes, in a high operation efficiency, by treating a porous polyethylene membrane with conc. sulfuric acid and a formaldehyde source. CONSTITUTION:A porous polyethylene cation-exchange membrane is prepared by treating a porous polyethylene membrane in the form of a plain or hollow- thread membrane with conc. sulfuric acid and a formaldehyde source (e.g., formalin, paraformaldehyde, etc.) to introduce sulfonic acid groups into the porous membrane. This treatment makes it possible to introduces sulfonic acid groups thoroughly entirely over the surface of the membrane and the surface of its porous parts in a high rate of reaction and thereby provide the membrane with an excellent cation-exchange ability. In the course of the treatment, some of the main chains of polyethylene are mutually crosslinked, whereby the membrane can be controlled from contraction, its shape retentivity can be improved, and its transmission capacity can be controlled freely by controlling the degree of crosslinking.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159948A JPS644626A (en) | 1987-06-26 | 1987-06-26 | Preparation of porous polyethylene cation-exchange membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159948A JPS644626A (en) | 1987-06-26 | 1987-06-26 | Preparation of porous polyethylene cation-exchange membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644626A true JPS644626A (en) | 1989-01-09 |
Family
ID=15704656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62159948A Pending JPS644626A (en) | 1987-06-26 | 1987-06-26 | Preparation of porous polyethylene cation-exchange membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644626A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007044353A2 (en) * | 2005-10-04 | 2007-04-19 | Ballard Power Systems Inc. | Methods for making sulfonated non-aromatic polymer electrolyte membranes |
JP2007224300A (en) * | 2006-02-23 | 2007-09-06 | Samsung Sdi Co Ltd | Polymer membrane, method of manufacturing the same and fuel cell |
JP2010266213A (en) * | 2009-05-12 | 2010-11-25 | Nippon Telegr & Teleph Corp <Ntt> | Toluene-detecting agent, toluene-detecting element, and toluene measurement method |
-
1987
- 1987-06-26 JP JP62159948A patent/JPS644626A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007044353A2 (en) * | 2005-10-04 | 2007-04-19 | Ballard Power Systems Inc. | Methods for making sulfonated non-aromatic polymer electrolyte membranes |
WO2007044353A3 (en) * | 2005-10-04 | 2007-06-21 | Ballard Power Systems | Methods for making sulfonated non-aromatic polymer electrolyte membranes |
JP2007224300A (en) * | 2006-02-23 | 2007-09-06 | Samsung Sdi Co Ltd | Polymer membrane, method of manufacturing the same and fuel cell |
JP2010266213A (en) * | 2009-05-12 | 2010-11-25 | Nippon Telegr & Teleph Corp <Ntt> | Toluene-detecting agent, toluene-detecting element, and toluene measurement method |
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