Heat insulation material based on aerogel
AssigneesUniversite De Lorraine, Centre National De La Recherche Scientifique
InventorsBrigitte Jamart, Alain Degiovanni, Sébastien Son, Yves Jannot, Guillaume Pickaert
Life of this patent
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Abstract
A heat insulation material is provided that is produced by drying a fibrous matrix impregnated with a solution of pseudo-peptides of formula (I), wherein: R is a side-chain of a natural or synthetic amino acid, R1 is either a linear or branched (C1-C3)alkyl group, or a linear or branched (C1-C3)alcoxy group, or an aryl group, or an aryl(C1-C3)alkyl group, or an aryloxy group, or a saturated or unsaturated heterocycle, n=1 or 2, and A is an aromatic or heteroaromatic group with at least one cycle.
Claims13
A thermal insulating material obtained by drying a fibrous matrix impregnated with a solution of pseudopeptides of formula (I),
- in which
- R represents a side chain of a natural amino acid;
- R1 represents either a linear or branched (C1-C8)alkyl group, or a linear or branched (C1-C8)alkoxy group, or an aryl group, or an aryl(C1-C4)alkyl group, or an aryloxy group, or a saturated or unsaturated heterocycle, or PhCH2O— or CH2═CH—CH2O—, n=1 or 2;
- and
- A represents an aromatic or heteroaromatic group with one or more rings,
- said fibrous matrix having a thermal conductivity of less than 0.05 W/m/K and a density of less than 50 kg/m3.
A method for improving the hydrophobicity of a fibrous matrix, said method comprising the following step:
- applying to said fibrous matrix a solution of pseudopeptides of formula (I):
- in which
- R represents a side chain of a natural amino acid;
- R1 represents either a linear or branched (C1-C8)alkyl group, or a linear or branched (C1-C8)alkoxy group, or an aryl group, or an aryl(C1-C4)alkyl group, or an aryloxy group, or a saturated or unsaturated heterocycle, or PhCH2O— or CH2═CH—CH2O—, n=1 or 2;
- and
- A represents an aromatic or heteroaromatic group with one or more rings,
- said fibrous matrix having a thermal conductivity of less than 0.05 W/m/K and a density of less than 50 kg/m3.
Dependencies are inferred from the claim text.