Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of yttrium-stabilized zirconium dioxide aerogel/fiber composite material
The invention belongs to the field of thermal insulation materials, and particularly relates to a preparation method of a yttrium-stabilized zirconium dioxide aerogel/fiber composite material. The preparation method comprises the following steps: taking and mixing a first solvent, water, zirconyl nitrate hydrate and yttrium nitrate hydrate, and carrying out first reaction to obtain first sol; taking and mixing a second solvent and the first sol, and then adding a gel accelerator to obtain composite sol; impregnating a fiber felt in the composite sol to obtain a sol-containing fiber felt; placing the fiber felt containing the sol at the temperature of 50-80 DEG C for gel aging, so as to obtain a gel-containing fiber felt; and respectively impregnating the gel-containing fiber felt in a third solvent, a fourth solvent and a fifth solvent for replacement, and then drying to obtain the yttrium-stabilized zirconium dioxide aerogel/fiber composite material. The heat conductivity coefficient of the composite material at the temperature of 1200 DEG C is 0.147-0.18 W/(m.K), and the composite material has excellent stability and heat insulation performance.
本发明属于隔热材料领域，特别是涉及一种钇稳定二氧化锆气凝胶/纤维复合材料的制备方法，所述方法包括：取第一溶剂、水、硝酸氧锆水合物和硝酸钇水合物混合，并进行第一反应，获得第一溶胶；取第二溶剂与所述第一溶胶混合，后加入凝胶促进剂，获得复合溶胶；将纤维毡浸渍于所述复合溶胶中，获得含溶胶纤维毡；所述含溶胶纤维毡置于50～80℃温度中进行凝胶陈化，获得含凝胶纤维毡；将所述含凝胶纤维毡分别浸渍于第三溶剂、第四溶剂和第五溶剂中进行置换，后干燥，获得钇稳定二氧化锆气凝胶/纤维复合材料，该复合材料在1200℃下导热系数为0.147‑0.18W/(m·K)，具有优异的稳定性和隔热性能。
Preparation method of yttrium-stabilized zirconium dioxide aerogel/fiber composite material
The invention belongs to the field of thermal insulation materials, and particularly relates to a preparation method of a yttrium-stabilized zirconium dioxide aerogel/fiber composite material. The preparation method comprises the following steps: taking and mixing a first solvent, water, zirconyl nitrate hydrate and yttrium nitrate hydrate, and carrying out first reaction to obtain first sol; taking and mixing a second solvent and the first sol, and then adding a gel accelerator to obtain composite sol; impregnating a fiber felt in the composite sol to obtain a sol-containing fiber felt; placing the fiber felt containing the sol at the temperature of 50-80 DEG C for gel aging, so as to obtain a gel-containing fiber felt; and respectively impregnating the gel-containing fiber felt in a third solvent, a fourth solvent and a fifth solvent for replacement, and then drying to obtain the yttrium-stabilized zirconium dioxide aerogel/fiber composite material. The heat conductivity coefficient of the composite material at the temperature of 1200 DEG C is 0.147-0.18 W/(m.K), and the composite material has excellent stability and heat insulation performance.
本发明属于隔热材料领域，特别是涉及一种钇稳定二氧化锆气凝胶/纤维复合材料的制备方法，所述方法包括：取第一溶剂、水、硝酸氧锆水合物和硝酸钇水合物混合，并进行第一反应，获得第一溶胶；取第二溶剂与所述第一溶胶混合，后加入凝胶促进剂，获得复合溶胶；将纤维毡浸渍于所述复合溶胶中，获得含溶胶纤维毡；所述含溶胶纤维毡置于50～80℃温度中进行凝胶陈化，获得含凝胶纤维毡；将所述含凝胶纤维毡分别浸渍于第三溶剂、第四溶剂和第五溶剂中进行置换，后干燥，获得钇稳定二氧化锆气凝胶/纤维复合材料，该复合材料在1200℃下导热系数为0.147‑0.18W/(m·K)，具有优异的稳定性和隔热性能。
Preparation method of yttrium-stabilized zirconium dioxide aerogel/fiber composite material
一种钇稳定二氧化锆气凝胶/纤维复合材料的制备方法
WANG LIDONG (Autor:in) / SHEN YADONG (Autor:in) / XU JIAN (Autor:in) / YANG MING (Autor:in) / ZHENG ZHANGYI (Autor:in) / LU AIMEI (Autor:in) / SUN LIJUN (Autor:in)
08.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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