JPS57166331A - Preparation of porous hollow fiber of glass - Google Patents

Preparation of porous hollow fiber of glass

Info

Publication number
JPS57166331A
JPS57166331A JP56048676A JP4867681A JPS57166331A JP S57166331 A JPS57166331 A JP S57166331A JP 56048676 A JP56048676 A JP 56048676A JP 4867681 A JP4867681 A JP 4867681A JP S57166331 A JPS57166331 A JP S57166331A
Authority
JP
Japan
Prior art keywords
na2o
hollow fiber
acid
glass
thin layer
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.)
Granted
Application number
JP56048676A
Other languages
Japanese (ja)
Other versions
JPH0139974B2 (en
Inventor
Tsukasa Taniyama
Toshiro Yamada
Niro Nagatomo
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.)
Toyobo Co Ltd
Original Assignee
Toyobo 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP56048676A priority Critical patent/JPS57166331A/en
Publication of JPS57166331A publication Critical patent/JPS57166331A/en
Publication of JPH0139974B2 publication Critical patent/JPH0139974B2/ja
Granted 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
    • B01D71/02—Inorganic material
    • B01D71/04—Glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/005—Fibre or filament compositions obtained by leaching of a soluble phase and consolidation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE:To obtain a porous hollow fiber of glass efficiently, by extracting B2O and Na2O from the surface of a hollow fiber of borosilicate glass to form the thin layer surface having pores, subjecting the rest to heat-treatment phase separation, eluting B2O and Na2O with an acid. CONSTITUTION:B2O and Na2O are extracted from the surface of the hollow fiber 1 of borosilicate glass by acid treatment, etc., and the thin layer 4 having innumerable uniform pores is formed. For example, in case of sulfuric acid, the acid extraction is carried out at normal temperature - about 95 deg.C for about 1-50hr using about 0.5-3N aqueous solution of sulfuric acid, and the thin layer 4 is about 1,000Angstrom thick. The phase separation is done by heat-treating the glass at about 500-650 deg.C, so that B2O and Na2O are concentrated. After the phase separation is over, B2O and Na2O are eluted from the parts of the phase separation by acid treatment, etc., removed, and the gas permeable path 2 passing through the pipe except the thin layer 4 is formed. For example, in case of sulfuric acid, the acid treatment is carried out at normal temperature - about 100 deg.C for 10-50hr by using about 0.5-3N sulfuric acid solution.
JP56048676A 1981-03-31 1981-03-31 Preparation of porous hollow fiber of glass Granted JPS57166331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048676A JPS57166331A (en) 1981-03-31 1981-03-31 Preparation of porous hollow fiber of glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048676A JPS57166331A (en) 1981-03-31 1981-03-31 Preparation of porous hollow fiber of glass

Publications (2)

Publication Number Publication Date
JPS57166331A true JPS57166331A (en) 1982-10-13
JPH0139974B2 JPH0139974B2 (en) 1989-08-24

Family

ID=12809916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048676A Granted JPS57166331A (en) 1981-03-31 1981-03-31 Preparation of porous hollow fiber of glass

Country Status (1)

Country Link
JP (1) JPS57166331A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521236A (en) * 1982-09-06 1985-06-04 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for preparation of porous glass film
JPS61158845A (en) * 1984-12-24 1986-07-18 ピーピージー・インダストリーズ・インコーポレーテツド Porous and high silica content full or hollow glass fiber and manufacture
US5011566A (en) * 1989-03-15 1991-04-30 The United States Of America As Represented By The Secretary Of The Air Force Method of manufacturing microscopic tube material
WO2021095545A1 (en) * 2019-11-11 2021-05-20 日本電気硝子株式会社 Method for producing porous glass member

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521236A (en) * 1982-09-06 1985-06-04 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for preparation of porous glass film
JPS61158845A (en) * 1984-12-24 1986-07-18 ピーピージー・インダストリーズ・インコーポレーテツド Porous and high silica content full or hollow glass fiber and manufacture
US5011566A (en) * 1989-03-15 1991-04-30 The United States Of America As Represented By The Secretary Of The Air Force Method of manufacturing microscopic tube material
WO2021095545A1 (en) * 2019-11-11 2021-05-20 日本電気硝子株式会社 Method for producing porous glass member

Also Published As

Publication number Publication date
JPH0139974B2 (en) 1989-08-24

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