摘要:
The present invention relates to a thermal insulation material, in particular in the form of a solid foam, made of silica particles with submicron porosity, said material including two different ranges of porosity, advantageously with a first range made up of (macro)pores with diameters comprised between 10 microns and 3 mm, and a second range made up of submicron pores with diameters larger than 4 nm and smaller than 300 nm, the pore volume of said submicron pores being at least 1 cm 3 /g, and the density of said insulating material being less than 300 kg/m 3 , the invention also relating to the method for obtaining said material.
摘要:
The invention relates to e glue composition for mineral fibres containing a phenolic resin, urea, a cross-linking catalyst, optional additives, characterised in that the cross-linking catalyst is a mixture of ammonium sulphamate and ammonium sulphate. The invention also relates to insulation products containing mineral fibres, in particular fine fibres, bound using the above-mentioned glue composition.