Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of three-phase ceramic fiber composite heat insulation tile
The invention discloses a preparation method of a three-phase ceramic fiber composite heat insulation tile, belongs to the technical field of high-temperature ceramic materials, and aims at solving the problems that the heat-resistant temperature of an existing ceramic fiber heat insulation tile needs to be increased and the high-temperature volume stability is poor. The preparation method comprises the following steps of: 1, adding boron oxide powder and zirconium oxide powder into silica sol, adding quartz ceramic fibers into the mixed sol, and drying to obtain pretreated quartz ceramic fibers; 2, mixing an opacifying agent, an adhesive composition and a sintering aid, and adding an ethanol solution to obtain mixed slurry; 3, uniformly mixing the pretreated quartz ceramic fibers, siliconcarbide ceramic fibers, alumina fibers and a polyacrylamide aqueous solution to obtain a ceramic fiber mixture; 4, mixing the mixed slurry with the ceramic fiber mixture; 5, pressing to form a ceramic fiber composite dry blank; and 6, carrying out sintering treatment. The quartz ceramic fibers are pretreated, crystallization of the quartz ceramic fibers is inhibited, and the heat insulation performance and the high-temperature stability of the composite heat insulation tile are improved.
三相陶瓷纤维复合隔热瓦的制备方法，本发明属于高温陶瓷材料技术领域，它要解决现有陶瓷纤维隔热瓦的耐热温度有待提高，高温体积稳定性不好的问题。制备方法：一、将氧化硼粉末和氧化锆粉末加入到硅溶胶中，向混合溶胶中加入石英陶瓷纤维，烘干得到预处理石英陶瓷纤维；二、将遮光剂、粘接剂组合物和烧结助剂进行混合，加入乙醇溶液，得到混合浆料；三、将预处理石英陶瓷纤维、碳化硅陶瓷纤维、氧化铝纤维和聚丙烯酰胺水溶液混合均匀，得到陶瓷纤维混合料；四、将混合浆料与陶瓷纤维混合料混合；五、压制成型陶瓷纤维复合干坯；六、烧结处理。本发明对石英陶瓷纤维预处理，抑制石英陶瓷纤维的析晶，提高复合隔热瓦的隔热性能和高温稳定性。
Preparation method of three-phase ceramic fiber composite heat insulation tile
The invention discloses a preparation method of a three-phase ceramic fiber composite heat insulation tile, belongs to the technical field of high-temperature ceramic materials, and aims at solving the problems that the heat-resistant temperature of an existing ceramic fiber heat insulation tile needs to be increased and the high-temperature volume stability is poor. The preparation method comprises the following steps of: 1, adding boron oxide powder and zirconium oxide powder into silica sol, adding quartz ceramic fibers into the mixed sol, and drying to obtain pretreated quartz ceramic fibers; 2, mixing an opacifying agent, an adhesive composition and a sintering aid, and adding an ethanol solution to obtain mixed slurry; 3, uniformly mixing the pretreated quartz ceramic fibers, siliconcarbide ceramic fibers, alumina fibers and a polyacrylamide aqueous solution to obtain a ceramic fiber mixture; 4, mixing the mixed slurry with the ceramic fiber mixture; 5, pressing to form a ceramic fiber composite dry blank; and 6, carrying out sintering treatment. The quartz ceramic fibers are pretreated, crystallization of the quartz ceramic fibers is inhibited, and the heat insulation performance and the high-temperature stability of the composite heat insulation tile are improved.
三相陶瓷纤维复合隔热瓦的制备方法，本发明属于高温陶瓷材料技术领域，它要解决现有陶瓷纤维隔热瓦的耐热温度有待提高，高温体积稳定性不好的问题。制备方法：一、将氧化硼粉末和氧化锆粉末加入到硅溶胶中，向混合溶胶中加入石英陶瓷纤维，烘干得到预处理石英陶瓷纤维；二、将遮光剂、粘接剂组合物和烧结助剂进行混合，加入乙醇溶液，得到混合浆料；三、将预处理石英陶瓷纤维、碳化硅陶瓷纤维、氧化铝纤维和聚丙烯酰胺水溶液混合均匀，得到陶瓷纤维混合料；四、将混合浆料与陶瓷纤维混合料混合；五、压制成型陶瓷纤维复合干坯；六、烧结处理。本发明对石英陶瓷纤维预处理，抑制石英陶瓷纤维的析晶，提高复合隔热瓦的隔热性能和高温稳定性。
Preparation method of three-phase ceramic fiber composite heat insulation tile
三相陶瓷纤维复合隔热瓦的制备方法
LI GUOJING (Autor:in) / ZHAO HUAQI (Autor:in) / WANG JINGYAN (Autor:in) / JIAO YUFENG (Autor:in) / YANG HANSONG (Autor:in) / LIU WENBIN (Autor:in) / YANG TINGTING (Autor:in) / HE LILI (Autor:in) / YAO WEI (Autor:in)
25.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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