Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aerogel felt as well as preparation method and application thereof
The invention provides an aerogel felt as well as a preparation method and application thereof. The preparation method of the aerogel felt comprises the following steps: mixing aerogel powder and a solvent, and grinding to obtain a precursor mixed solution; after the fibrofelt is rolled, spraying the precursor mixed solution and a coupling agent on one side of the fibrofelt together, and performing suction filtration to obtain a fibrofelt mixture A; in a protective gas atmosphere, under a microwave heating condition, performing gel aging on the fibrofelt mixture A to obtain a fibrofelt mixture B; and drying the fibrofelt mixture B step by step to obtain the aerogel felt. According to the invention, through the design of the preparation method of the aerogel felt, the problems of non-uniformity in compounding of the aerogel precursor and the fiber and high energy loss caused by excessive adsorption of the aerogel precursor by the fiber are solved, the high-pressure safety risk and the normal-pressure flammable and explosive risk are reduced, meanwhile, the drying efficiency is improved, the production period is shortened, and the production cost is reduced. And the production cost is reduced.
本发明提供一种气凝胶毡及其制备方法和应用。气凝胶毡的制备方法包括如下步骤：将气凝胶粉体和溶剂混合后，研磨，得到前驱体混合液；纤维毡辊压后，将前驱体混合液与偶联剂共同喷淋于纤维毡一侧，抽滤，得到纤维毡混合物A；在保护气氛围中，在微波加热条件下，纤维毡混合物A凝胶陈化得到纤维毡混合物B；对纤维毡混合物B进行分步干燥，得到所述气凝胶毡。本发明中，通过对气凝胶毡制备方法的设计，解决了气凝胶前驱体和纤维复合不均匀性及纤维过多吸附气凝胶前驱体导致能耗损失高的问题，降低了高压安全风险及常压易燃易爆风险，同时，提高了干燥效率、缩短了生产周期，降低了生产成本。
Aerogel felt as well as preparation method and application thereof
The invention provides an aerogel felt as well as a preparation method and application thereof. The preparation method of the aerogel felt comprises the following steps: mixing aerogel powder and a solvent, and grinding to obtain a precursor mixed solution; after the fibrofelt is rolled, spraying the precursor mixed solution and a coupling agent on one side of the fibrofelt together, and performing suction filtration to obtain a fibrofelt mixture A; in a protective gas atmosphere, under a microwave heating condition, performing gel aging on the fibrofelt mixture A to obtain a fibrofelt mixture B; and drying the fibrofelt mixture B step by step to obtain the aerogel felt. According to the invention, through the design of the preparation method of the aerogel felt, the problems of non-uniformity in compounding of the aerogel precursor and the fiber and high energy loss caused by excessive adsorption of the aerogel precursor by the fiber are solved, the high-pressure safety risk and the normal-pressure flammable and explosive risk are reduced, meanwhile, the drying efficiency is improved, the production period is shortened, and the production cost is reduced. And the production cost is reduced.
本发明提供一种气凝胶毡及其制备方法和应用。气凝胶毡的制备方法包括如下步骤：将气凝胶粉体和溶剂混合后，研磨，得到前驱体混合液；纤维毡辊压后，将前驱体混合液与偶联剂共同喷淋于纤维毡一侧，抽滤，得到纤维毡混合物A；在保护气氛围中，在微波加热条件下，纤维毡混合物A凝胶陈化得到纤维毡混合物B；对纤维毡混合物B进行分步干燥，得到所述气凝胶毡。本发明中，通过对气凝胶毡制备方法的设计，解决了气凝胶前驱体和纤维复合不均匀性及纤维过多吸附气凝胶前驱体导致能耗损失高的问题，降低了高压安全风险及常压易燃易爆风险，同时，提高了干燥效率、缩短了生产周期，降低了生产成本。
Aerogel felt as well as preparation method and application thereof
一种气凝胶毡及其制备方法和应用
SUN YE (Autor:in) / ZHANG YESHENG (Autor:in) / SUN JIUSHENG (Autor:in) / CHENG BAOMING (Autor:in) / WANG XUE (Autor:in) / CHANG YAN (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
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