Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel
The invention discloses a preparation method of zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel. The preparation method comprises the following steps: S1, dissolving aluminum salt in a mixed solution of water and alcohol, and stirring to obtain a transparent aluminum precursor solution A; s2, adding zirconium oxide fibers into the solution A obtained in the step S1, and vigorously stirring after ultrasonic oscillation to obtain white turbid liquid B; s3, adding hydroxyethyl cellulose into the turbid liquid B obtained in the step S2, and stirring to obtain white sticky turbid liquid C; s4, uniformly dropwise adding epoxypropane into the turbid liquid C obtained in the step S3, then vigorously stirring, standing to form gel D, then adding ethanol to cover the gel D, and aging to obtain gel E with miniature volume; s5, putting the gel E obtained in the step S4 into a container, and performing solvent replacement on the gel E with ethanol to obtain final gel F; s6, supercritical drying is conducted on the gel F with carbon dioxide as a medium, and the zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel composite material is obtained.
本发明公开了一种氧化锆纤维增强耐高温块体氧化铝气凝胶的制备方法，包括以下步骤：S1、取铝盐溶解于水和醇的混合溶液中搅拌得到透明的铝前驱体溶液A；S2、在步骤S1获得的溶液A中加入氧化锆纤维，用超声振荡后大力搅拌得到白色悬浊液B；S3、在步骤S2获得的悬浊液B中加入羟乙基纤维素搅拌得到白色黏稠悬浊液C；S4、在步骤S3获得的悬浊液C中均匀滴加环氧丙烷后剧烈搅拌，静置形成凝胶D，随后加入乙醇覆盖凝胶D进行老化获得体积微缩的凝胶E；S5、将步骤S4获得的凝胶E放置于容器中，用乙醇对其进行溶剂置换获得终凝胶F；S6、以二氧化碳为介质对凝胶F进行超临界干燥获得氧化锆纤维增强的耐高温块体氧化铝气凝胶复合材料。
Preparation method of zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel
The invention discloses a preparation method of zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel. The preparation method comprises the following steps: S1, dissolving aluminum salt in a mixed solution of water and alcohol, and stirring to obtain a transparent aluminum precursor solution A; s2, adding zirconium oxide fibers into the solution A obtained in the step S1, and vigorously stirring after ultrasonic oscillation to obtain white turbid liquid B; s3, adding hydroxyethyl cellulose into the turbid liquid B obtained in the step S2, and stirring to obtain white sticky turbid liquid C; s4, uniformly dropwise adding epoxypropane into the turbid liquid C obtained in the step S3, then vigorously stirring, standing to form gel D, then adding ethanol to cover the gel D, and aging to obtain gel E with miniature volume; s5, putting the gel E obtained in the step S4 into a container, and performing solvent replacement on the gel E with ethanol to obtain final gel F; s6, supercritical drying is conducted on the gel F with carbon dioxide as a medium, and the zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel composite material is obtained.
本发明公开了一种氧化锆纤维增强耐高温块体氧化铝气凝胶的制备方法，包括以下步骤：S1、取铝盐溶解于水和醇的混合溶液中搅拌得到透明的铝前驱体溶液A；S2、在步骤S1获得的溶液A中加入氧化锆纤维，用超声振荡后大力搅拌得到白色悬浊液B；S3、在步骤S2获得的悬浊液B中加入羟乙基纤维素搅拌得到白色黏稠悬浊液C；S4、在步骤S3获得的悬浊液C中均匀滴加环氧丙烷后剧烈搅拌，静置形成凝胶D，随后加入乙醇覆盖凝胶D进行老化获得体积微缩的凝胶E；S5、将步骤S4获得的凝胶E放置于容器中，用乙醇对其进行溶剂置换获得终凝胶F；S6、以二氧化碳为介质对凝胶F进行超临界干燥获得氧化锆纤维增强的耐高温块体氧化铝气凝胶复合材料。
Preparation method of zirconium oxide fiber reinforced high-temperature-resistant block aluminum oxide aerogel
一种氧化锆纤维增强耐高温块体氧化铝气凝胶的制备方法
ZHOU LICHUN (Autor:in) / LIAO JIAXUAN (Autor:in) / DING SHUAI (Autor:in)
17.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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