GB1313091A - Thermal insulating material - Google Patents

Thermal insulating material

Info

Publication number
GB1313091A
GB1313091A GB1313091DA GB1313091A GB 1313091 A GB1313091 A GB 1313091A GB 1313091D A GB1313091D A GB 1313091DA GB 1313091 A GB1313091 A GB 1313091A
Authority
GB
United Kingdom
Prior art keywords
aerogel
gel
firing
particles
thermal insulating
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.)
Expired
Application number
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.)
Electricity Council
Original Assignee
Electricity Council
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 Electricity Council filed Critical Electricity Council
Publication of GB1313091A publication Critical patent/GB1313091A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0091—Preparation of aerogels, e.g. xerogels
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0045—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by a process involving the formation of a sol or a gel, e.g. sol-gel or precipitation processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Insulation (AREA)
  • Silicon Compounds (AREA)

Abstract

1313091 Thermal insulating material ELECTRICITY COUNCIL 4 Aug 1970 [4 Aug 1969] 38884/69 Heading C1A Thermal insulating material is produced by mixing particles of refractory colloidal material with water to form a gel, freeze drying the gel to form an aerogel by cooling to a temperature below the triple point of water at reduced drying pressure, admitting predried air or other gas to increase the pressure to atmospheric, and firing the resultant aerogel; The firing temperature may be 900-1000‹ K. the particles may be flakes (e.g. having a thickness of 10-30Š and width of about 1000Š) of clay, e.g. montmorillonite, silica, ferric oxide or chromic oxide. A fibrous support of refractory material (e.g. aluminosilicate) may be immersed in the gel prior to freezing. The aerogel may be formed in a bag (possibly of combustible material). Opacifying materials (e.g. metal or carbon flakes or particles or semiconducting doped oxides) having particle size 1-20 microns may be added prior to freezing. Ice crystal growth may be suppressed by the adding of sodium alginate. A moisture impervious coating may be applied to the resultant aerogel after firing.
GB1313091D 1969-08-04 1969-08-04 Thermal insulating material Expired GB1313091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3888469 1969-08-04

Publications (1)

Publication Number Publication Date
GB1313091A true GB1313091A (en) 1973-04-11

Family

ID=10406260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1313091D Expired GB1313091A (en) 1969-08-04 1969-08-04 Thermal insulating material

Country Status (1)

Country Link
GB (1) GB1313091A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470898A1 (en) * 1990-08-07 1992-02-12 Thomson-Csf Piezoelectric ceramic with controlled porosity
WO2010144807A3 (en) * 2009-06-11 2011-04-07 Case Western Reserve University Porous material having controlled voids and method of making the same
US8822558B2 (en) 2009-06-11 2014-09-02 Case Western Reserve University Low density hydrophobic material and method of making the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470898A1 (en) * 1990-08-07 1992-02-12 Thomson-Csf Piezoelectric ceramic with controlled porosity
FR2665699A1 (en) * 1990-08-07 1992-02-14 Thomson Csf PIEZOELECTRIC CERAMIC WITH CONTROLLED POROSITY.
US5143636A (en) * 1990-08-07 1992-09-01 Thomson-Csf Controlled-porosity piezoelectric ceramic
WO2010144807A3 (en) * 2009-06-11 2011-04-07 Case Western Reserve University Porous material having controlled voids and method of making the same
US8608991B2 (en) 2009-06-11 2013-12-17 Case Western Reserve University Porous material having controlled voids and method of making the same
US8637582B2 (en) 2009-06-11 2014-01-28 Case Western Reserve University Crosslinked polymer aerogels, polymer aerogel composites and methods for preparing the same
US8822558B2 (en) 2009-06-11 2014-09-02 Case Western Reserve University Low density hydrophobic material and method of making the same
US8845937B2 (en) 2009-06-11 2014-09-30 Case Western Reserve University Porous material having anisotropic structure and method of making the same

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees