Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of ultrahigh-strength rigid ceramic heat insulation tile
The invention provides a preparation method of an ultrahigh-strength rigid ceramic heat insulation tile, and belongs to the technical field of thermal protection materials. Dissolving a phenolic resin precursor in absolute ethyl alcohol, adding urotropine, and adding sintering aid powder into the phenolic resin precursor solution to prepare a mixed solution; uniformly spraying the mixed solution to the surface of the ceramic fiber, and drying to obtain a pretreated fiber A; adding the pretreated fiber A into water, transferring the pretreated fiber A into a pulping machine for pulping, and after pulping is completed, filtering and drying to obtain pretreated fiber B; paving the pretreated fiber B into a mold cavity of a mold pressing mold with uniform thickness, heating and preserving heat of the mold, and then cooling and demolding to obtain a dry blank of the heat insulation tile; and transferring the heat insulation tile dry blank into a muffle furnace, and carrying out two-stage heating sintering to obtain the ultrahigh-strength rigid ceramic heat insulation tile. The invention solves the problems of non-uniform strength and insufficient out-of-plane mechanical strength of the ultrahigh-strength rigid ceramic heat insulation tile prepared by the existing method.
本发明提出了一种超高强度刚性陶瓷隔热瓦的制备方法，属于热防护材料技术领域。将酚醛树脂前驱体溶于无水乙醇之中并加入乌洛托品，将烧结助剂粉体加入至酚醛树脂前驱体溶液中，制得混合溶液；将混合溶液均匀喷洒至陶瓷纤维表面并干燥完毕，得到预处理纤维A；将预处理纤维A加入水中并转移至打浆机中进行打浆，打浆完毕后，过滤并烘干，得到预处理纤维B；将预处理纤维B均匀厚度铺至模压模具的模腔内，将模具加热保温，然后冷却并脱模，得到隔热瓦干坯；将隔热瓦干坯转移至马弗炉中，两段升温烧结，得到超高强度刚性陶瓷隔热瓦。本发明解决采用现有方法制备超高强度刚性陶瓷隔热瓦存在的强度不均匀、面外力学强度不足的问题。
Preparation method of ultrahigh-strength rigid ceramic heat insulation tile
The invention provides a preparation method of an ultrahigh-strength rigid ceramic heat insulation tile, and belongs to the technical field of thermal protection materials. Dissolving a phenolic resin precursor in absolute ethyl alcohol, adding urotropine, and adding sintering aid powder into the phenolic resin precursor solution to prepare a mixed solution; uniformly spraying the mixed solution to the surface of the ceramic fiber, and drying to obtain a pretreated fiber A; adding the pretreated fiber A into water, transferring the pretreated fiber A into a pulping machine for pulping, and after pulping is completed, filtering and drying to obtain pretreated fiber B; paving the pretreated fiber B into a mold cavity of a mold pressing mold with uniform thickness, heating and preserving heat of the mold, and then cooling and demolding to obtain a dry blank of the heat insulation tile; and transferring the heat insulation tile dry blank into a muffle furnace, and carrying out two-stage heating sintering to obtain the ultrahigh-strength rigid ceramic heat insulation tile. The invention solves the problems of non-uniform strength and insufficient out-of-plane mechanical strength of the ultrahigh-strength rigid ceramic heat insulation tile prepared by the existing method.
本发明提出了一种超高强度刚性陶瓷隔热瓦的制备方法，属于热防护材料技术领域。将酚醛树脂前驱体溶于无水乙醇之中并加入乌洛托品，将烧结助剂粉体加入至酚醛树脂前驱体溶液中，制得混合溶液；将混合溶液均匀喷洒至陶瓷纤维表面并干燥完毕，得到预处理纤维A；将预处理纤维A加入水中并转移至打浆机中进行打浆，打浆完毕后，过滤并烘干，得到预处理纤维B；将预处理纤维B均匀厚度铺至模压模具的模腔内，将模具加热保温，然后冷却并脱模，得到隔热瓦干坯；将隔热瓦干坯转移至马弗炉中，两段升温烧结，得到超高强度刚性陶瓷隔热瓦。本发明解决采用现有方法制备超高强度刚性陶瓷隔热瓦存在的强度不均匀、面外力学强度不足的问题。
Preparation method of ultrahigh-strength rigid ceramic heat insulation tile
一种超高强度刚性陶瓷隔热瓦的制备方法
LIU XIAOBO (Autor:in) / ZHAN GUIPAN (Autor:in) / QIU QINGFAN (Autor:in) / SUN JINGJING (Autor:in) / ZHANG SILU (Autor:in) / ZHANG BEIBEI (Autor:in) / AN XUAN (Autor:in) / JI DAYONG (Autor:in) / ZHANG FAN (Autor:in) / LI WENJING (Autor:in)
13.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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