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Lightweight heat-insulating mullite porous ceramic material and preparation method thereof
The invention discloses a light heat-insulation mullite porous ceramic material and a preparation method thereof, and the preparation method comprises the following steps: calcining short mullite fibers, discharging glue, mixing with water, and carrying out ball milling to obtain mullite fiber slurry; adding a dispersing agent, non-water-soluble starch and tetraethoxysilane into the mullite fiber slurry to obtain mixed slurry; and removing the solvent water, drying and calcining to obtain the catalyst. The addition volume of the non-water-soluble starch is 2-4 times of the volume of the short-cut mullite fiber. According to the method, the isotropic mullite porous ceramic material can be obtained on the basis of keeping high porosity.
本发明公开了一种轻质隔热莫来石多孔陶瓷材料及其制备方法，包括：将短切莫来石纤维煅烧排胶后与水混合，球磨，得到莫来石纤维浆料；向莫来石纤维浆料中加入分散剂、非水溶性淀粉、正硅酸乙酯，得到混合浆料；脱去溶剂水，烘干，煅烧即得；非水溶性淀粉的加入体积为短切莫来石纤维的体积的2‑4倍。所述方法能够在保持高孔隙率的基础上，得到各向同性的莫来石多孔陶瓷材料。
Lightweight heat-insulating mullite porous ceramic material and preparation method thereof
The invention discloses a light heat-insulation mullite porous ceramic material and a preparation method thereof, and the preparation method comprises the following steps: calcining short mullite fibers, discharging glue, mixing with water, and carrying out ball milling to obtain mullite fiber slurry; adding a dispersing agent, non-water-soluble starch and tetraethoxysilane into the mullite fiber slurry to obtain mixed slurry; and removing the solvent water, drying and calcining to obtain the catalyst. The addition volume of the non-water-soluble starch is 2-4 times of the volume of the short-cut mullite fiber. According to the method, the isotropic mullite porous ceramic material can be obtained on the basis of keeping high porosity.
本发明公开了一种轻质隔热莫来石多孔陶瓷材料及其制备方法，包括：将短切莫来石纤维煅烧排胶后与水混合，球磨，得到莫来石纤维浆料；向莫来石纤维浆料中加入分散剂、非水溶性淀粉、正硅酸乙酯，得到混合浆料；脱去溶剂水，烘干，煅烧即得；非水溶性淀粉的加入体积为短切莫来石纤维的体积的2‑4倍。所述方法能够在保持高孔隙率的基础上，得到各向同性的莫来石多孔陶瓷材料。
Lightweight heat-insulating mullite porous ceramic material and preparation method thereof
一种轻质隔热莫来石多孔陶瓷材料及其制备方法
LIU DAZHAO (author) / WANG MIAO (author) / GUI KAIXUAN (author) / WANG GANG (author) / ZHANG GUANGYUAN (author) / HU JUNFENG (author)
2023-07-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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