HIGH-TEMPERATURE-RESISTANT AND OXIDATION-RESISTANT LIGHT-WEIGHT HEAT-INSULATION FOAM MATERIAL AND PREPARATION METHOD THEREFOR

HIGH-TEMPERATURE-RESISTANT AND OXIDATION-RESISTANT LIGHT-WEIGHT HEAT-INSULATION FOAM MATERIAL AND PREPARATION METHOD THEREFOR

A high-temperature-resistant and oxidation-resistant light-weight heat-insulation foam material and a preparation method thereof. The foam material is one of a SiBCN foam material, a SiHfBCN foam material, a SiBCN/C composite foam material and a SiHfBCN/C composite foam material. The foam material i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUN, Chencheng, LI, Junning, XU, Yifen, CHEN, Zhiyu, FENG, Zhihai, HU, Jidong, HU, Zijun
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:A high-temperature-resistant and oxidation-resistant light-weight heat-insulation foam material and a preparation method thereof. The foam material is one of a SiBCN foam material, a SiHfBCN foam material, a SiBCN/C composite foam material and a SiHfBCN/C composite foam material. The foam material is prepared from a precursor solution through processes of template impregnation, curing, drying and cracking; wherein the precursor solution is a SiBCN precursor solution or a SiHfBCN precursor solution, and the template is a polyurethane foam or an organic carbon-modified polyurethane foam. The SiBCN foam material, SiHfBCN foam material, SiBCN/C composite foam material or SiHfBCN/C composite foam material obtained by the present application has the advantages of high temperature resistance, a low thermal conductivity, oxidation resistance, a low density and a high strength.