JPS6420314A - Production of improved hollow fiber membrane - Google Patents

Production of improved hollow fiber membrane

Info

Publication number
JPS6420314A
JPS6420314A JP17445487A JP17445487A JPS6420314A JP S6420314 A JPS6420314 A JP S6420314A JP 17445487 A JP17445487 A JP 17445487A JP 17445487 A JP17445487 A JP 17445487A JP S6420314 A JPS6420314 A JP S6420314A
Authority
JP
Japan
Prior art keywords
hollow fiber
fiber membrane
heat treatment
production
periphery
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
JP17445487A
Other languages
Japanese (ja)
Inventor
Yoshihiko Muto
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP17445487A priority Critical patent/JPS6420314A/en
Publication of JPS6420314A publication Critical patent/JPS6420314A/en
Pending legal-status Critical Current

Links

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
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE:To obtain a hollow fiber membrane enhanced in pressure, heat and chemical resistance, with little change in the inner diameter thereby, by wetting the periphery of the original hollow fiber membrane with a liquid followed by heat treatment. CONSTITUTION:The periphery of a hollow fiber membrane consisting of e.g., a thermoplastic polymer such as tetrafluoroethylene-hexafluoropropylene copolymer, polyethylene or polysulfone is wetted with a liquid (e.g., water, polyethylene glycol, ethanol) followed by heat treatment, thus obtaining the objective hollow fiber membrane. Said heat treatment is preferably carried out at temperatures high than the melting point of the hollow fiber membrane material, pref. up to the melting point plus 100 deg.C either in an inert gas or in a vacuum.
JP17445487A 1987-07-13 1987-07-13 Production of improved hollow fiber membrane Pending JPS6420314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17445487A JPS6420314A (en) 1987-07-13 1987-07-13 Production of improved hollow fiber membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17445487A JPS6420314A (en) 1987-07-13 1987-07-13 Production of improved hollow fiber membrane

Publications (1)

Publication Number Publication Date
JPS6420314A true JPS6420314A (en) 1989-01-24

Family

ID=15978772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17445487A Pending JPS6420314A (en) 1987-07-13 1987-07-13 Production of improved hollow fiber membrane

Country Status (1)

Country Link
JP (1) JPS6420314A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663745B1 (en) * 1999-01-29 2003-12-16 Mykrolis Corporation Method for manufacturing hollow fiber membranes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663745B1 (en) * 1999-01-29 2003-12-16 Mykrolis Corporation Method for manufacturing hollow fiber membranes

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