JPS5520234A - Production of polycrystalline alumina fiber - Google Patents

Production of polycrystalline alumina fiber

Info

Publication number
JPS5520234A
JPS5520234A JP9198478A JP9198478A JPS5520234A JP S5520234 A JPS5520234 A JP S5520234A JP 9198478 A JP9198478 A JP 9198478A JP 9198478 A JP9198478 A JP 9198478A JP S5520234 A JPS5520234 A JP S5520234A
Authority
JP
Japan
Prior art keywords
dispersion
fiber
alumino
gel
polycrystalline alumina
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
JP9198478A
Other languages
Japanese (ja)
Inventor
Takeshi Furuya
Yasutaka Iwai
Katsunoshin Isogai
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP9198478A priority Critical patent/JPS5520234A/en
Publication of JPS5520234A publication Critical patent/JPS5520234A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Inorganic Fibers (AREA)

Abstract

PURPOSE: To obtain polycrystalline alumina fiber causing no layer exfoliation phenomenon and useful as a fire resistant, heat insulating material for high temp. use by converting a dispersion consisting of water insol. alumino gel, aluminum oxychloride and polyvinyl alcohol into fiber with centrifugal force followed by heat treatment.
CONSTITUTION: Alumino gel or alumino gel and silica hydrogel are dispersed in water, and the dispersion is mixed with aluminum oxychloride with an Al to Cl molar ratio of 1.7W1.9 and a soln. of polyvinyl alcohol with an average polymn. degree of 1500W2000. The alumino gel content is regulated to 20W60% of the total alumina components in the mixed dispersion. This dispersion is concentrated to a viscosity of 500W2000 cps/20°C by being heated at 60W70°C under reduced press. for 1W2 hr. The resulting conc. dispersion is converted into fiber with centrifugal force, and the fiber is heat treated at 500W1200°C to obtain polycrystalline alumina fiber.
COPYRIGHT: (C)1980,JPO&Japio
JP9198478A 1978-07-27 1978-07-27 Production of polycrystalline alumina fiber Pending JPS5520234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9198478A JPS5520234A (en) 1978-07-27 1978-07-27 Production of polycrystalline alumina fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9198478A JPS5520234A (en) 1978-07-27 1978-07-27 Production of polycrystalline alumina fiber

Publications (1)

Publication Number Publication Date
JPS5520234A true JPS5520234A (en) 1980-02-13

Family

ID=14041735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9198478A Pending JPS5520234A (en) 1978-07-27 1978-07-27 Production of polycrystalline alumina fiber

Country Status (1)

Country Link
JP (1) JPS5520234A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752228A (en) * 1986-12-09 1988-06-21 Shuichi Masunaga Spherical display device
KR100412241B1 (en) * 2001-12-13 2003-12-31 주식회사 라이지오케미칼코리아 A ultrafine inorganic fiber, and a process of preparing for the same
KR20040013835A (en) * 2002-08-08 2004-02-14 현대자동차주식회사 Supporter and its manufacturing method of catalytic converter for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752228A (en) * 1986-12-09 1988-06-21 Shuichi Masunaga Spherical display device
KR100412241B1 (en) * 2001-12-13 2003-12-31 주식회사 라이지오케미칼코리아 A ultrafine inorganic fiber, and a process of preparing for the same
KR20040013835A (en) * 2002-08-08 2004-02-14 현대자동차주식회사 Supporter and its manufacturing method of catalytic converter for automobile

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