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A platform for research: civil engineering, architecture and urbanism
Aerogel-based material that is super-insulating at atmospheric pressure
The present invention relates to a solid thermally insulating material, essentially free of phyllosilicates, comprising (a) from 70 to 98% by volume of hydrophobic silica aerogel particles having an intrinsic density between 110 and 210 kg/m, (b) from 0.3 to 12% by volume of an organic binder formed by at least one organic polymer (b1) and at least one surfactant (b2), or by an amphiphilic organic polymer (b3), these volume fractions being determined by image analysis on thin sections of the solid material and being given relative to the total volume of the material, the aerogel particles having a particle size distribution that has at least two maxima, with a first maximum corresponding to an equivalent diameter (d) of less than 200 μm, preferably between 25 μm and 150 μm, and a second maximum corresponding to an equivalent diameter (D) between 400 μm and 10 mm, preferably between 500 μm and 5 mm. It also relates to a thermally insulating product containing at least one layer of this material.
Aerogel-based material that is super-insulating at atmospheric pressure
The present invention relates to a solid thermally insulating material, essentially free of phyllosilicates, comprising (a) from 70 to 98% by volume of hydrophobic silica aerogel particles having an intrinsic density between 110 and 210 kg/m, (b) from 0.3 to 12% by volume of an organic binder formed by at least one organic polymer (b1) and at least one surfactant (b2), or by an amphiphilic organic polymer (b3), these volume fractions being determined by image analysis on thin sections of the solid material and being given relative to the total volume of the material, the aerogel particles having a particle size distribution that has at least two maxima, with a first maximum corresponding to an equivalent diameter (d) of less than 200 μm, preferably between 25 μm and 150 μm, and a second maximum corresponding to an equivalent diameter (D) between 400 μm and 10 mm, preferably between 500 μm and 5 mm. It also relates to a thermally insulating product containing at least one layer of this material.
Aerogel-based material that is super-insulating at atmospheric pressure
YRIEIX BERNARD (author) / MOREL BENOIT (author) / FORAY GENEVIEVE (author) / BOGNER AGNES (author) / VAN DE MOORTELE BERTRAND (author)
2020-03-31
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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