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Silica fiber

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Type of filament material made from waterglass Not to be confused with Quartz fiber.

Silica fibers are fibers made of sodium silicate (water glass). They are used in heat protection (including asbestos substitution) and in packings and compensators. They can be made such that they are substantially free from non-alkali metal compounds.

Sodium silicate fibres may be used for subsequent production of silica fibres, which is better than producing the latter from a melt containing SiO2 or by acid-leaching of glass fibres. The silica fibres are useful for producing wet webs, filter linings and reinforcing the material.

They can also be used to produce silicic acid fibres by a dry spinning method. These fibres have properties which make them useful in friction-lining materials.

See also

References

  1. Canadian Patent: CA 1142312, Application Number: 343548 Inventors: Hillermeier, Karlheinz (Germany), Seeberger, Ernst (Germany) Owners: AKZO N.V. (Netherlands)
  • Water-Containing Water Glass Fibers: United States Patent: 4,471,019, Sep. 11, 1984
  • Manufacturing Silica Fibers. United States Patent, 4,332,601, Jun. 1, 1982. Arno Wegerhoff, Woerth and Karlheinz Hillermeier, Wuppertal. All of Fed. Rep. of Germany


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