Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The present invention discloses a calcium-containing refractory material, which is composed of the following raw materials by weight: 1-2 parts of allyl polyethylene glycol, 0.4-1 part of zinc oxide, 1-2 parts of glucose, 2-4 parts of tricalcium silicate, 1-2 parts of anhydrous calcium chloride, 0.4-1 part of sodium fluoride, 60-70 parts of alumina, 4-10 parts of phenolic resins, 10-12 parts of sisal fibers, 26-30 parts of tetraethoxysilane, 3-4 parts of 5-7mol / l nitric acid solution and 2-3 parts of glacial acetic acid. The method is as below: hydrolyzing tetraethoxysilane in the presence of a catalyst of glacial acetic acid into silane alcosol; mixing silane alcosol with fiber emulsion; evaporating the solvent to obtain a carbon and silicon heterocomplex; and finally conducting high temperature carbonization by using the fiber emulsion as the carbon source to obtain a carbon silicon composite additive. The carbon silicon composite additive has the advantages of chemical stability, high thermal conductivity, small thermal expansion coefficient, high thermal shock resistance, light weight, and high strength.
The present invention discloses a calcium-containing refractory material, which is composed of the following raw materials by weight: 1-2 parts of allyl polyethylene glycol, 0.4-1 part of zinc oxide, 1-2 parts of glucose, 2-4 parts of tricalcium silicate, 1-2 parts of anhydrous calcium chloride, 0.4-1 part of sodium fluoride, 60-70 parts of alumina, 4-10 parts of phenolic resins, 10-12 parts of sisal fibers, 26-30 parts of tetraethoxysilane, 3-4 parts of 5-7mol / l nitric acid solution and 2-3 parts of glacial acetic acid. The method is as below: hydrolyzing tetraethoxysilane in the presence of a catalyst of glacial acetic acid into silane alcosol; mixing silane alcosol with fiber emulsion; evaporating the solvent to obtain a carbon and silicon heterocomplex; and finally conducting high temperature carbonization by using the fiber emulsion as the carbon source to obtain a carbon silicon composite additive. The carbon silicon composite additive has the advantages of chemical stability, high thermal conductivity, small thermal expansion coefficient, high thermal shock resistance, light weight, and high strength.
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