JPS5466382A - Reverse osmotic membrane made of hollow fiber of acrylonitrile series polymer and production thereof - Google Patents
Reverse osmotic membrane made of hollow fiber of acrylonitrile series polymer and production thereofInfo
- Publication number
- JPS5466382A JPS5466382A JP13272177A JP13272177A JPS5466382A JP S5466382 A JPS5466382 A JP S5466382A JP 13272177 A JP13272177 A JP 13272177A JP 13272177 A JP13272177 A JP 13272177A JP S5466382 A JPS5466382 A JP S5466382A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- plasma
- osmotic membrane
- reverse osmotic
- irradiation
- 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 6
- 239000012528 membrane Substances 0.000 title abstract 3
- 230000003204 osmotic effect Effects 0.000 title abstract 3
- 229920000642 polymer Polymers 0.000 title abstract 3
- 150000008360 acrylonitriles Chemical class 0.000 title abstract 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 3
- 239000010410 layer Substances 0.000 abstract 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 229940117958 vinyl acetate Drugs 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PURPOSE: To provide a reverse osmotic membrane high in water-permeablity, excellent in chemicals resistance, acid resistance, alkali resistance, by irradiation of plasma on porous, hollow fiber made of acrylonitrile series polymer so as to form dense cross-linked layer on the surface.
CONSTITUTION: Plasma is irradiated on a porous hollow fiber made of a copolymer of, e.g., vinylacetate and polyacrylonitrile or AN contg. acrylonitrile (AN) not less than 40 mol.%, the hollow fiber having a bubble point not lower than 10kg/cm2, and permeating-water flow rate not lower than 1l/m2/hr at a press. 10 kg/cm2. The plasma irradiation is carried out by introduction of plasma generated by, e.g., glow discharge, and by applying a voltage 0.5W5 KV across electrodes 3, 4 by means of a neon transformer 2. Irradiation of this plasma on the porous hollow fiber causes to cross-link near-surface layer only, or to block holes to form dense layer, producing desired reverse osmotic membrane made of AN-series-polymer hollow fiber.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13272177A JPS5466382A (en) | 1977-11-04 | 1977-11-04 | Reverse osmotic membrane made of hollow fiber of acrylonitrile series polymer and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13272177A JPS5466382A (en) | 1977-11-04 | 1977-11-04 | Reverse osmotic membrane made of hollow fiber of acrylonitrile series polymer and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5466382A true JPS5466382A (en) | 1979-05-28 |
Family
ID=15088017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13272177A Pending JPS5466382A (en) | 1977-11-04 | 1977-11-04 | Reverse osmotic membrane made of hollow fiber of acrylonitrile series polymer and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5466382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7422411B2 (en) | 2001-02-26 | 2008-09-09 | Irm Llc | Gripping mechanisms, apparatus and methods |
-
1977
- 1977-11-04 JP JP13272177A patent/JPS5466382A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7422411B2 (en) | 2001-02-26 | 2008-09-09 | Irm Llc | Gripping mechanisms, apparatus and methods |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS52155224A (en) | Preparation of inorganic fiber and equipment therefor | |
| JPS5254688A (en) | Method of producing semipermeable memebrane | |
| JPS5397988A (en) | Production of cation exchange membrane | |
| JPS5281076A (en) | Semipermeable membrane made of hollow yarn | |
| ES458662A1 (en) | Fabric permeable to ultraviolet radiations | |
| JPS5466382A (en) | Reverse osmotic membrane made of hollow fiber of acrylonitrile series polymer and production thereof | |
| JPS559806A (en) | Polypropylene two-axes extended composite film | |
| JPS5255719A (en) | Hollow fibers having selective gas permeability and production thereof | |
| JPS54102292A (en) | Composite hollow yarn and gas selective permeating method used above yarn | |
| JPS5599934A (en) | Preparation of porous vinylidene fluoride resin membrane | |
| JPS5439952A (en) | Method of producing purified water | |
| JPS5390367A (en) | Preparation of hollow fiber membrane | |
| JPS5215482A (en) | Gas separating and condensing process | |
| JPS54103788A (en) | Composite hollow yarn and selective gas permeation using same | |
| JPS5750508A (en) | Permselective membrane and its production | |
| JPS5339978A (en) | Preparation of microcapsule having wall of semipermeable membrane | |
| JPS54151574A (en) | Manufacture of acrylonitrile hollow fiber | |
| JPS5462981A (en) | Oxygen gas selectively permeable membrane | |
| JPS5247848A (en) | Process for preparing acrylonitrile polymer solutions | |
| JPS5432556A (en) | Method of crosslinking olefinic polymer | |
| JPS57180134A (en) | Pattern formation | |
| JPS54107889A (en) | Production of cation exchange membrane | |
| JPS5766113A (en) | Production of hollow fiber | |
| JPS5291788A (en) | Production of ion exchange membrane | |
| JPS53133591A (en) | Gas adsorbing felt |