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Aorthite porous thermal insulation material and preparation method thereof
The invention discloses an anorthite porous thermal insulation material and a preparation method thereof, and belongs to the technical field of porous ceramic material preparation, during preparation, silicon carbide, silicon nitride, cerium oxide and the like are selected as foaming agents, during firing, the temperature is raised to 800-900 DEG C, heat preservation is performed for 30-60 min, then the temperature is raised to 1200-1280 DEG C, firing foaming is performed, during cooling, the temperature is lowered to 800-1000 DEG C, heat preservation is performed for 10-60 min, and then the temperature is lowered to room temperature. High value-added resource utilization of the solid waste is achieved, pressing or gel casting is not needed in the preparation process, the process is simple, operation is convenient, a specific sintering system and a specific cooling system are selected based on the working temperature of the high-temperature foaming agent and impurity components in the industrial solid waste, secondary precipitation of anorthite from a high-temperature melt is promoted, the content of anorthite is increased, and the production cost is reduced. The problem that the glass phase content of a porous material prepared by a high-temperature foaming method is relatively high is solved, and the obtained porous ceramic is high in closed porosity, excellent in strength and low in heat conductivity coefficient.
本发明公开了一种钙长石多孔隔热材料及其制备方法，属于多孔陶瓷材料制备技术领域，制备时选用碳化硅、氮化硅、氧化铈等作为发泡剂，烧成时升温至800~900℃，保温30~60min，再升温至1200~1280℃烧成发泡，冷却时降温至800~1000℃，保温10~60min，再冷却至室温。本发明实现了固废高附加值资源化利用，制备过程无需压制或注凝成型，工艺简单，操作方便，基于高温发泡剂的工作温度和工业固废中杂质成分，选用特定的烧成制度和冷却制度，促进钙长石从高温熔体中的二次析出，提升了钙长石的含量，解决了高温发泡法制得多孔材料玻璃相含量较高的问题，所得多孔陶瓷的闭气孔率高，强度优异，导热系数低。
Aorthite porous thermal insulation material and preparation method thereof
The invention discloses an anorthite porous thermal insulation material and a preparation method thereof, and belongs to the technical field of porous ceramic material preparation, during preparation, silicon carbide, silicon nitride, cerium oxide and the like are selected as foaming agents, during firing, the temperature is raised to 800-900 DEG C, heat preservation is performed for 30-60 min, then the temperature is raised to 1200-1280 DEG C, firing foaming is performed, during cooling, the temperature is lowered to 800-1000 DEG C, heat preservation is performed for 10-60 min, and then the temperature is lowered to room temperature. High value-added resource utilization of the solid waste is achieved, pressing or gel casting is not needed in the preparation process, the process is simple, operation is convenient, a specific sintering system and a specific cooling system are selected based on the working temperature of the high-temperature foaming agent and impurity components in the industrial solid waste, secondary precipitation of anorthite from a high-temperature melt is promoted, the content of anorthite is increased, and the production cost is reduced. The problem that the glass phase content of a porous material prepared by a high-temperature foaming method is relatively high is solved, and the obtained porous ceramic is high in closed porosity, excellent in strength and low in heat conductivity coefficient.
本发明公开了一种钙长石多孔隔热材料及其制备方法，属于多孔陶瓷材料制备技术领域，制备时选用碳化硅、氮化硅、氧化铈等作为发泡剂，烧成时升温至800~900℃，保温30~60min，再升温至1200~1280℃烧成发泡，冷却时降温至800~1000℃，保温10~60min，再冷却至室温。本发明实现了固废高附加值资源化利用，制备过程无需压制或注凝成型，工艺简单，操作方便，基于高温发泡剂的工作温度和工业固废中杂质成分，选用特定的烧成制度和冷却制度，促进钙长石从高温熔体中的二次析出，提升了钙长石的含量，解决了高温发泡法制得多孔材料玻璃相含量较高的问题，所得多孔陶瓷的闭气孔率高，强度优异，导热系数低。
Aorthite porous thermal insulation material and preparation method thereof
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