Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a heat-insulating refractory material which is prepared from the following raw materials in parts by weight: 0.1-0.3 part of potassium hydrogen sulfate, 4-7 parts of sodium silicate, 5-10 parts of magnesium silicate, 3-4 parts of glass fiber, 16-20 parts of aluminum oxide, 30-40 parts of silica white,, 30-37 parts of aluminum silicate, 4-7 parts of terpene resin, 6-10 parts of pulverized asbestos, 10-16 parts of flax fiber, 2-3 parts of glacial acetic acid, 0.7-1 part of chitosan, 26-30 parts of ethyl orthosilicate, 80-102 parts of 6-10% ammonia water, 100-110 parts of 3-5% oxydol and 0.1-0.18 part of 10-15 mol/L sulfuric acid. The method comprises the following steps: hydrolyzing the ethyl orthosilicate into a silanol sol by using the glacial acetic acid as a catalyst, mixing the silanol sol and a silicon fiber activation solution, evaporating the solvent to obtain a carbon-silicon-containing heterocomplex, and carrying out high-temperature carbonization by providing a carbon source with the fiber activation solution to obtain the carbon-silicon composite assistant. The carbon-silicon-calcium composite assistant has the advantages of stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient, heat shock resistance, light weight and high strength.
The invention discloses a heat-insulating refractory material which is prepared from the following raw materials in parts by weight: 0.1-0.3 part of potassium hydrogen sulfate, 4-7 parts of sodium silicate, 5-10 parts of magnesium silicate, 3-4 parts of glass fiber, 16-20 parts of aluminum oxide, 30-40 parts of silica white,, 30-37 parts of aluminum silicate, 4-7 parts of terpene resin, 6-10 parts of pulverized asbestos, 10-16 parts of flax fiber, 2-3 parts of glacial acetic acid, 0.7-1 part of chitosan, 26-30 parts of ethyl orthosilicate, 80-102 parts of 6-10% ammonia water, 100-110 parts of 3-5% oxydol and 0.1-0.18 part of 10-15 mol/L sulfuric acid. The method comprises the following steps: hydrolyzing the ethyl orthosilicate into a silanol sol by using the glacial acetic acid as a catalyst, mixing the silanol sol and a silicon fiber activation solution, evaporating the solvent to obtain a carbon-silicon-containing heterocomplex, and carrying out high-temperature carbonization by providing a carbon source with the fiber activation solution to obtain the carbon-silicon composite assistant. The carbon-silicon-calcium composite assistant has the advantages of stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient, heat shock resistance, light weight and high strength.
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Europäisches Patentamt | 2021
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