Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a light and environment-friendly refractory material. The refractory material comprises the following raw materials in parts by weight: 18-30 parts of aluminium nitride, 40-50 parts of magnesia-chrome spinel, 30-40 parts of amorphous graphite, 1-1.6 parts of sodium tetraborate, 2-3 parts of bone black powder, 0.1-0.2 part of calcium stearate, 0.6-1 part of dodecyl dimethyl betaine, 5-7 parts of terpene resin, 10-16 parts of linen fiber, 2-3 parts of glacial acetic acid, 26-30 parts of ethyl orthosilicate, 80-102 parts of 6-10% ammonia water, 100-110 parts of 3-5% hydrogen peroxide and 2-3 parts of calcium oxide. The refractory material and the preparation method have the advantages that ethyl orthosilicate is hydrolyzed into silanol sol under the condition that the catalyst glacial acetic acid is added, the silanol sol is mixed with a calcium fiber activating solution, a hybrid containing calcium, carbon and silicon is obtained through evaporation of a solvent, and finally through high-temperature carbonization, the fiber activating solution provides a carbon source and a calcium, carbon and silicon compound additive is obtained; the calcium, carbon and silicon compound additive has stable chemical properties, high thermal conductivity coefficient, low coefficient of thermal expansion, thermal shock resistance, light weight and high strength.
The invention discloses a light and environment-friendly refractory material. The refractory material comprises the following raw materials in parts by weight: 18-30 parts of aluminium nitride, 40-50 parts of magnesia-chrome spinel, 30-40 parts of amorphous graphite, 1-1.6 parts of sodium tetraborate, 2-3 parts of bone black powder, 0.1-0.2 part of calcium stearate, 0.6-1 part of dodecyl dimethyl betaine, 5-7 parts of terpene resin, 10-16 parts of linen fiber, 2-3 parts of glacial acetic acid, 26-30 parts of ethyl orthosilicate, 80-102 parts of 6-10% ammonia water, 100-110 parts of 3-5% hydrogen peroxide and 2-3 parts of calcium oxide. The refractory material and the preparation method have the advantages that ethyl orthosilicate is hydrolyzed into silanol sol under the condition that the catalyst glacial acetic acid is added, the silanol sol is mixed with a calcium fiber activating solution, a hybrid containing calcium, carbon and silicon is obtained through evaporation of a solvent, and finally through high-temperature carbonization, the fiber activating solution provides a carbon source and a calcium, carbon and silicon compound additive is obtained; the calcium, carbon and silicon compound additive has stable chemical properties, high thermal conductivity coefficient, low coefficient of thermal expansion, thermal shock resistance, light weight and high strength.
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