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Preparation method of ceramic aerogel/ceramic fiber/MXene composite thermal insulation material
The invention relates to the field of composite materials, and discloses a preparation method of a ceramic aerogel/ceramic fiber/MXene composite thermal insulation material, which comprises the following steps: 1) preparing an aqueous phase dispersion liquid of an MXene two-dimensional nano material; (2) uniformly mixing cellulose and the MXene two-dimensional nano material water-phase dispersion liquid to prepare mixed slurry A; 3) uniformly mixing cellulose, ceramic fiber, a silicon source, an aluminum source and water to prepare mixed slurry B; 4) uniformly mixing the mixed slurry B, the mixed slurry A and citric acid, and heating for reaction to prepare mixed slurry C; and 5) carrying out directional freezing on the mixed slurry C, then carrying out freeze drying, and finally roasting to obtain the ceramic aerogel/ceramic fiber/MXene composite thermal insulation material. The ceramic aerogel/ceramic fiber/MXene composite thermal insulation material prepared by the method has a regular hexagonal honeycomb pore structure inside, and has the advantages of low high-temperature heat conductivity coefficient and good compression resilience.
本发明涉及复合材料领域，公开了一种陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料的制备方法，包括：1）MXene二维纳米材料水相分散液的制备；2）将纤维素，MXene二维纳米材料水相分散液混匀，制得混合浆料A；3）将纤维素，陶瓷纤维、硅源、铝源和水混匀，制得混合浆料B；4）将混合浆料B，混合浆料A和柠檬酸混匀，加热反应，制得混合浆料C；5）对混合浆料C进行定向冷冻，再进行冷冻干燥，最后焙烧，获得陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料。按本发明方法制得的陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料的内部具有较为规整的六角形蜂窝孔结构，具有高温导热系数低、压缩回弹性好的优点。
Preparation method of ceramic aerogel/ceramic fiber/MXene composite thermal insulation material
The invention relates to the field of composite materials, and discloses a preparation method of a ceramic aerogel/ceramic fiber/MXene composite thermal insulation material, which comprises the following steps: 1) preparing an aqueous phase dispersion liquid of an MXene two-dimensional nano material; (2) uniformly mixing cellulose and the MXene two-dimensional nano material water-phase dispersion liquid to prepare mixed slurry A; 3) uniformly mixing cellulose, ceramic fiber, a silicon source, an aluminum source and water to prepare mixed slurry B; 4) uniformly mixing the mixed slurry B, the mixed slurry A and citric acid, and heating for reaction to prepare mixed slurry C; and 5) carrying out directional freezing on the mixed slurry C, then carrying out freeze drying, and finally roasting to obtain the ceramic aerogel/ceramic fiber/MXene composite thermal insulation material. The ceramic aerogel/ceramic fiber/MXene composite thermal insulation material prepared by the method has a regular hexagonal honeycomb pore structure inside, and has the advantages of low high-temperature heat conductivity coefficient and good compression resilience.
本发明涉及复合材料领域，公开了一种陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料的制备方法，包括：1）MXene二维纳米材料水相分散液的制备；2）将纤维素，MXene二维纳米材料水相分散液混匀，制得混合浆料A；3）将纤维素，陶瓷纤维、硅源、铝源和水混匀，制得混合浆料B；4）将混合浆料B，混合浆料A和柠檬酸混匀，加热反应，制得混合浆料C；5）对混合浆料C进行定向冷冻，再进行冷冻干燥，最后焙烧，获得陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料。按本发明方法制得的陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料的内部具有较为规整的六角形蜂窝孔结构，具有高温导热系数低、压缩回弹性好的优点。
Preparation method of ceramic aerogel/ceramic fiber/MXene composite thermal insulation material
一种陶瓷气凝胶/陶瓷纤维/MXene复合隔热材料的制备方法
DING KAI (author) / JIN DANDAN (author) / LIANG ZHENG (author) / PANG PEIYAN (author) / JIN MIAOQIAN (author) / WANG ZHENYU (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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