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Preparation method of aluminum oxide-silicon oxide aerogel thermal insulation composite material
The invention belongs to the technical field of thermal insulation materials, and discloses a preparation method of an aluminum oxide and silicon oxide aerogel thermal insulation composite material. According to the preparation method, aluminum oxide and silicon oxide sol taking water as a solvent and inorganic ceramic fibers are used as reinforcing phases; the alumina-silica aerogel thermal insulation composite material with high temperature resistance, low thermal conductivity and high strength is prepared through six process steps of simple preparation of a fiber prefabricated part, preparation of alumina-silica sol, vacuum impregnation, gel aging, hydrothermal auxiliary drying and drying. According to the preparation method of the material, raw materials without organic aluminum/inorganic aluminum/organic silicon compounds are adopted, no organic solvent is replaced in the preparation process, no flammable and explosive ethanol solvent is used as a drying medium, the raw materialsand the preparation process are environmentally friendly and safe, the manufacturing cost is low, and batch production and large-scale application are easy.
本发明属于隔热材料技术领域，公开了一种氧化铝‑氧化硅气凝胶隔热复合材料的制备方法，本发明制备方法采用以水作为溶剂的氧化铝和氧化硅溶胶，无机陶瓷纤维作为增强相，通过简单的制备纤维预制件、配制氧化铝‑氧化硅溶胶、真空浸渍、凝胶老化、水热辅助干燥、烘干6个工艺步骤，制备出耐高温、低热导、高强度的氧化铝‑氧化硅气凝胶隔热复合材料。该材料的制备方法采用无有机铝/无机铝/有机硅化合物的原材料，制备工艺过程中无有机溶剂置换并且不使用易燃易爆乙醇溶剂作为干燥介质，原材料和制备工艺绿色、环保、安全，制造成本低，易于批量化生产和规模化应用。
Preparation method of aluminum oxide-silicon oxide aerogel thermal insulation composite material
The invention belongs to the technical field of thermal insulation materials, and discloses a preparation method of an aluminum oxide and silicon oxide aerogel thermal insulation composite material. According to the preparation method, aluminum oxide and silicon oxide sol taking water as a solvent and inorganic ceramic fibers are used as reinforcing phases; the alumina-silica aerogel thermal insulation composite material with high temperature resistance, low thermal conductivity and high strength is prepared through six process steps of simple preparation of a fiber prefabricated part, preparation of alumina-silica sol, vacuum impregnation, gel aging, hydrothermal auxiliary drying and drying. According to the preparation method of the material, raw materials without organic aluminum/inorganic aluminum/organic silicon compounds are adopted, no organic solvent is replaced in the preparation process, no flammable and explosive ethanol solvent is used as a drying medium, the raw materialsand the preparation process are environmentally friendly and safe, the manufacturing cost is low, and batch production and large-scale application are easy.
本发明属于隔热材料技术领域，公开了一种氧化铝‑氧化硅气凝胶隔热复合材料的制备方法，本发明制备方法采用以水作为溶剂的氧化铝和氧化硅溶胶，无机陶瓷纤维作为增强相，通过简单的制备纤维预制件、配制氧化铝‑氧化硅溶胶、真空浸渍、凝胶老化、水热辅助干燥、烘干6个工艺步骤，制备出耐高温、低热导、高强度的氧化铝‑氧化硅气凝胶隔热复合材料。该材料的制备方法采用无有机铝/无机铝/有机硅化合物的原材料，制备工艺过程中无有机溶剂置换并且不使用易燃易爆乙醇溶剂作为干燥介质，原材料和制备工艺绿色、环保、安全，制造成本低，易于批量化生产和规模化应用。
Preparation method of aluminum oxide-silicon oxide aerogel thermal insulation composite material
一种氧化铝-氧化硅气凝胶隔热复合材料的制备方法
JIANG YONGGANG (author) / FENG JIAN (author) / FENG JUNZONG (author) / LI LIANGJUN (author)
2021-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of aluminum oxide-silicon oxide aerogel composite material
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