Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon dioxide aerogel composite light heat insulation tile
The invention relates to a preparation method of a silicon dioxide aerogel composite light heat insulation tile. Slurry obtained by mixing chopped fibers and sol is placed in a heat insulation tile mold to be subjected to filter pressing molding; after gelation, demoulding is performed, a heat insulation tile is prepared through supercritical drying. The preparation method is scientific and reasonable, simple and easy to operate and does not need any binders, and a skeleton structure is formed by utilizing the microstructure characteristics of aerogel and fibers, so that the material integrally forms a rigid structure, the processing procedure of a silicon dioxide aerogel composite light heat insulation tile is omitted, any complex special-shaped part can be manufactured, the sintering process of a ceramic heat insulation tile is omitted, the overall process efficiency is improved, and the production energy consumption is greatly reduced. The obtained silicon dioxide aerogel compositelight heat insulation tile is free of sintering, high in porosity and small in pore diameter, and has a good blocking effect on solid heat transfer, air heat transfer and convection.
本发明涉及一种二氧化硅气凝胶复合轻质隔热瓦的制备方法。通过将短切纤维与溶胶混合所得料浆置于隔热瓦模具内压滤成型，待凝胶后脱模、经超临界干燥制备隔热瓦，科学合理，简单易行，不使用任何粘结剂，利用气凝胶自身微观结构特点和纤维形成骨架结构，使材料整体形成刚性结构，省略了二氧化硅气凝胶复合轻质隔热瓦加工工序，可以制成任何复杂异型件，省略了陶瓷隔热瓦的烧结过程，提高了整体工艺效率，极大降低了生产能耗。所得二氧化硅气凝胶复合轻质隔热瓦，免烧结、孔隙率高，孔径小，对固体传热和空气传热及对流有良好的阻隔作用。
Preparation method of silicon dioxide aerogel composite light heat insulation tile
The invention relates to a preparation method of a silicon dioxide aerogel composite light heat insulation tile. Slurry obtained by mixing chopped fibers and sol is placed in a heat insulation tile mold to be subjected to filter pressing molding; after gelation, demoulding is performed, a heat insulation tile is prepared through supercritical drying. The preparation method is scientific and reasonable, simple and easy to operate and does not need any binders, and a skeleton structure is formed by utilizing the microstructure characteristics of aerogel and fibers, so that the material integrally forms a rigid structure, the processing procedure of a silicon dioxide aerogel composite light heat insulation tile is omitted, any complex special-shaped part can be manufactured, the sintering process of a ceramic heat insulation tile is omitted, the overall process efficiency is improved, and the production energy consumption is greatly reduced. The obtained silicon dioxide aerogel compositelight heat insulation tile is free of sintering, high in porosity and small in pore diameter, and has a good blocking effect on solid heat transfer, air heat transfer and convection.
本发明涉及一种二氧化硅气凝胶复合轻质隔热瓦的制备方法。通过将短切纤维与溶胶混合所得料浆置于隔热瓦模具内压滤成型，待凝胶后脱模、经超临界干燥制备隔热瓦，科学合理，简单易行，不使用任何粘结剂，利用气凝胶自身微观结构特点和纤维形成骨架结构，使材料整体形成刚性结构，省略了二氧化硅气凝胶复合轻质隔热瓦加工工序，可以制成任何复杂异型件，省略了陶瓷隔热瓦的烧结过程，提高了整体工艺效率，极大降低了生产能耗。所得二氧化硅气凝胶复合轻质隔热瓦，免烧结、孔隙率高，孔径小，对固体传热和空气传热及对流有良好的阻隔作用。
Preparation method of silicon dioxide aerogel composite light heat insulation tile
一种二氧化硅气凝胶复合轻质隔热瓦的制备方法
ZHANG LEI (Autor:in) / LIU RUIXIANG (Autor:in) / WANG KAIYU (Autor:in) / SUI XUEYE (Autor:in) / ZHOU CHANGLING (Autor:in) / CHENG ZHIQIANG (Autor:in) / WANG ZHONGHAI (Autor:in)
05.05.2020
Patent
Elektronische Ressource
Chinesisch
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