JPS5581706A - Preparation of semi-permeable membrane - Google Patents

Preparation of semi-permeable membrane

Info

Publication number
JPS5581706A
JPS5581706A JP15591978A JP15591978A JPS5581706A JP S5581706 A JPS5581706 A JP S5581706A JP 15591978 A JP15591978 A JP 15591978A JP 15591978 A JP15591978 A JP 15591978A JP S5581706 A JPS5581706 A JP S5581706A
Authority
JP
Japan
Prior art keywords
membrane
thereafter
solvent
plasma
porous
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
Application number
JP15591978A
Other languages
Japanese (ja)
Inventor
Takezo Sano
Takatoshi Shimomura
Kazumoto Murase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP15591978A priority Critical patent/JPS5581706A/en
Priority to DE19792950236 priority patent/DE2950236A1/en
Priority to IT51083/79A priority patent/IT1164914B/en
Priority to NL7908970A priority patent/NL7908970A/en
Priority to FR7930683A priority patent/FR2443866B1/en
Priority to DK534679A priority patent/DK154750C/en
Priority to GB7943367A priority patent/GB2037222B/en
Publication of JPS5581706A publication Critical patent/JPS5581706A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/009—After-treatment of organic or inorganic membranes with wave-energy, particle-radiation or plasma
    • 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
    • B01D71/421—Polyacrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To prepare a semi-permeable membrane for reverse osmosis with excellent substance exhausitive property and water pemeable speed by a method wherein a wet porous membrane of acrylonitrile polymer is treated by hot water and thereafter treated by plasma.
CONSTITUTION: To a polar organic solvent solution containing about 5W30wt% of acrylonitrile polymer of which acrylonitrile content is 40W100mol%, about 5W 20wt% of an additive such as polyethylene glycol, polypropylene glycol or the like is added and casted on a glass plate so as to form a film with a thickness of about 100μ, thereafter surface solvent is evaporated at a temperature of below b.p. of a solvent and gellated by immersing in a non-solvent to obtain a porous wet membrane. Subsequently, this porous wet membrane is immersed in an aqueous solution based on water with 50W100°C for above about 1min to carry out heat treatment and thereafter dried. This obtained dried membrane is set in a vacuum container mounted with a pair of electrode therein, thereafter a gas not polymerized by plasma is introduced so as to adjust pressure within the said chamber to about 0.01W10 torr and about 0.5W50kV of voltage is applied for 30sec -1hr to carry out plasma treatment.
COPYRIGHT: (C)1980,JPO&Japio
JP15591978A 1978-12-15 1978-12-15 Preparation of semi-permeable membrane Pending JPS5581706A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP15591978A JPS5581706A (en) 1978-12-15 1978-12-15 Preparation of semi-permeable membrane
DE19792950236 DE2950236A1 (en) 1978-12-15 1979-12-13 SEMIPERMEABLE MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF
IT51083/79A IT1164914B (en) 1978-12-15 1979-12-13 PROCEDURE FOR THE PRODUCTION OF SEMI-PERMEABLE MEMBRANES TO BE USED IN REVERSE OSMOSIS OPERATIONS AND PRODUCT OBTAINED
NL7908970A NL7908970A (en) 1978-12-15 1979-12-13 METHOD FOR MANUFACTURING SEMIPERMEABLE MEMBRANES
FR7930683A FR2443866B1 (en) 1978-12-15 1979-12-14 PROCESS FOR THE MANUFACTURE OF SEMI-PERMEABLE MEMBRANES, OBTAINED MEMBRANES AND THEIR APPLICATION
DK534679A DK154750C (en) 1978-12-15 1979-12-14 PROCEDURE FOR MANUFACTURING A SEMIPERMEABLE MEMBRANE
GB7943367A GB2037222B (en) 1978-12-15 1979-12-17 Process for producing semipermeable membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15591978A JPS5581706A (en) 1978-12-15 1978-12-15 Preparation of semi-permeable membrane

Publications (1)

Publication Number Publication Date
JPS5581706A true JPS5581706A (en) 1980-06-20

Family

ID=15616371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15591978A Pending JPS5581706A (en) 1978-12-15 1978-12-15 Preparation of semi-permeable membrane

Country Status (7)

Country Link
JP (1) JPS5581706A (en)
DE (1) DE2950236A1 (en)
DK (1) DK154750C (en)
FR (1) FR2443866B1 (en)
GB (1) GB2037222B (en)
IT (1) IT1164914B (en)
NL (1) NL7908970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100454153B1 (en) * 2001-11-24 2004-10-26 태광산업주식회사 A hollow fiber membrane made of polyacrylonitrile and a preparation method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG33312A1 (en) * 1981-04-20 1983-01-14 Dimov POLLUTION METHOD FOR POLUPRONICAEMA MEMBRANA
DE3509068A1 (en) * 1985-03-14 1986-09-18 Bayer Ag, 5090 Leverkusen Pore membranes
JP3171947B2 (en) * 1991-09-03 2001-06-04 ダイセル化学工業株式会社 Polyacrylonitrile copolymer selectively permeable membrane and method for producing the same
DE19811997C1 (en) * 1998-03-19 1999-07-15 Geesthacht Gkss Forschung Solvent- and acid-stable copolyacrylonitrile membrane suitable for autoclave sterilization

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090579A (en) * 1973-12-12 1975-07-19
JPS5226380A (en) * 1975-08-25 1977-02-26 Sumitomo Chem Co Ltd Method of making semipermeable membranes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025439A (en) * 1973-12-12 1977-05-24 Mitsubishi Rayon Co., Ltd. Dried semipermeable membrane and manufacture thereof
JPS568645B2 (en) * 1974-09-05 1981-02-25
US4061821A (en) * 1975-12-29 1977-12-06 Asahi Kasei Kogyo Kabushiki Kaisha Semipermeable composite membranes
US4268662A (en) * 1978-03-17 1981-05-19 Sumitomo Chemical Company, Limited Process for improving semipermeable membranes by treating with protic acids or inorganic salts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090579A (en) * 1973-12-12 1975-07-19
JPS5226380A (en) * 1975-08-25 1977-02-26 Sumitomo Chem Co Ltd Method of making semipermeable membranes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100454153B1 (en) * 2001-11-24 2004-10-26 태광산업주식회사 A hollow fiber membrane made of polyacrylonitrile and a preparation method thereof

Also Published As

Publication number Publication date
GB2037222A (en) 1980-07-09
DE2950236A1 (en) 1980-06-26
FR2443866A1 (en) 1980-07-11
DK154750C (en) 1989-05-08
NL7908970A (en) 1980-06-17
IT7951083A0 (en) 1979-12-13
DK154750B (en) 1988-12-19
DE2950236C2 (en) 1988-03-10
GB2037222B (en) 1983-01-19
DK534679A (en) 1980-06-16
IT1164914B (en) 1987-04-15
FR2443866B1 (en) 1986-02-14

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