LOW DENSITY CELLULAR POLYMER MATERIAL INCLUDING A LOW EMISSIVITY METALLIC POWDER, AND USE THEREOF IN THERMAL INSULATION

摘要

The invention relates to a low density cellular polymer material having a volumetric mass of between 6 and 40 kg/m³, including at least 0.1 wt % of a non-oxidised metallic powder having an equivalent mean diameter of between 0.5 et 30 µm, and made of a metallic material having, at solid state, an emissivity lower than 0.2, said metallic material being further selected so as to exhibit a corrosion resistance such that the increase in the metallic powder emissivity after an oxidation test according to ISO standards 9227, 3231 and 21207 is lower than 0.1.