JPS5725409A - Method of making porous hollow fiber hydrophilic - Google Patents
Method of making porous hollow fiber hydrophilicInfo
- Publication number
- JPS5725409A JPS5725409A JP10095180A JP10095180A JPS5725409A JP S5725409 A JPS5725409 A JP S5725409A JP 10095180 A JP10095180 A JP 10095180A JP 10095180 A JP10095180 A JP 10095180A JP S5725409 A JPS5725409 A JP S5725409A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- porous hollow
- hydrophilic
- fiber hydrophilic
- fluorine
- 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
- 239000012510 hollow fiber Substances 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 229910052731 fluorine Inorganic materials 0.000 abstract 2
- 239000011737 fluorine Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229920001600 hydrophobic polymer Polymers 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- -1 polypropylene Polymers 0.000 abstract 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE: Finely porous hollow fiber of hydrophobic polymer is brought into contact with a mixed gas of fluorine and oxygen to effect reaction, whereby COF groups are introduced into polymer chains to make the hollow fiber hydrophilic permanently.
CONSTITUTION: Finely porous hollow fiber, which is made from a hydrophobic polymer such as polypropylene, preferably has 50W5,000Å average pore size and more than 20% porosity, is brought into contact with a mixed gas consisting of fluorine, oxygen and an inert gas such as nitrogen, preferably at the volume ratio of (1W30):(0.1W20):(50W98), at room temperature for longer than 5sec. This reaction introduced acid fluoride group (COF) of the formula into polymer chains and the hydrolysis of the introduced groups readily makes the hollow fiber hydrophilic.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10095180A JPS5725409A (en) | 1980-07-23 | 1980-07-23 | Method of making porous hollow fiber hydrophilic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10095180A JPS5725409A (en) | 1980-07-23 | 1980-07-23 | Method of making porous hollow fiber hydrophilic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5725409A true JPS5725409A (en) | 1982-02-10 |
Family
ID=14287652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10095180A Pending JPS5725409A (en) | 1980-07-23 | 1980-07-23 | Method of making porous hollow fiber hydrophilic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5725409A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59189913A (en) * | 1983-04-13 | 1984-10-27 | Nok Corp | Preparation of ultrafiltration membrane |
| US4828585A (en) * | 1986-08-01 | 1989-05-09 | The Dow Chemical Company | Surface modified gas separation membranes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128068A (en) * | 1973-03-16 | 1974-12-07 |
-
1980
- 1980-07-23 JP JP10095180A patent/JPS5725409A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128068A (en) * | 1973-03-16 | 1974-12-07 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59189913A (en) * | 1983-04-13 | 1984-10-27 | Nok Corp | Preparation of ultrafiltration membrane |
| US4828585A (en) * | 1986-08-01 | 1989-05-09 | The Dow Chemical Company | Surface modified gas separation membranes |
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