Surface-modified glass fiber with bi-component core-sheath structure
OwnerMichael Knoll, Davide Picoinventors
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Abstract
Surface-modified glass fiber, comprising: a core made of a first glass fiber material; a surface layer that encloses the core completely in a sheath-like way; wherein the surface layer has a higher silicon dioxide percentage and a higher porosity compared to the core.
Claims17
A surface-modified glass fiber, comprising:
- a core of a first glass fiber material;
- a surface layer that completely surrounds the core in a sheath-like way;
- and
- wherein the surface layer has a higher silicon dioxide percentage and a higher porosity compared to the core.
A method for producing a surface-modified glass fiber structure, wherein the glass fiber structure is a precursor fiber or a non-woven fiber layer made of needled precursor fibers, wherein the glass fiber structure is made of a first glass fiber material that comprises E-glass, water glass or A-glass, comprising the following steps:
- leaching of the glass fiber structure through treatment with a predetermined acid solution for a predetermined time at a predetermined ambient temperature and at a predetermined acid concentration.
A surface-modified glass fiber having a bi-component structure comprising:
- a core having a first porosity, first silicon dioxide content, and first thermal resistance;
- a sheath surrounding said core, said sheath having a second porosity, second silicon dioxide content, and second thermal resistance;
- and
- wherein the second porosity is greater than the first porosity, the second silicon dioxide content is greater than the first silicon dioxide content, and the second thermal resistance is greater than the first thermal resistance,
- whereby insulation made of the surface-modified glass fiber is capable of being manufactured with higher temperature stability than the core of the surface-modified glass fiber.
Dependencies are inferred from the claim text.