The invention provides a high-temperature-resistant thermal insulation material and a preparation method thereof. The preparation method comprises the following steps of (1) providing a flexible thermal insulation material, a metal foil and fiber cloth, wherein the flexible thermal insulation material is a fibrofelt or flexible aerogel, (2) placing a metal foil between the two layers of flexible thermal insulation materials, and (3) wrapping the flexible thermal insulation material with the metal foil by using the fiber cloth, and sewing to obtain the high-temperature-resistant thermal insulation material. The metal foil serving as a core layer is arranged between the flexible thermal insulation materials, the metal foil and the flexible thermal insulation materials are wrapped by the fiber cloth and then sewn to be integrated, and by means of the rigidity and the heat sink effect of the metal foil and the compressibility and the thermal insulation performance of the flexible thermal insulation materials, the prepared material not only has excellent high temperature resistance and heat insulation performance, but also has good heat insulation performance. has shape follow-up performance and shape maintaining performance, and can meet the thermal insulation requirements of special-shaped spaces with different gaps between an outer thermal protection layer of the aircraft and a cabin body.
本发明提供了一种耐高温隔热材料及其制备方法,所述制备方法包括如下步骤:(1)提供柔性隔热材料、金属箔和纤维布;其中,所述柔性隔热材料为纤维毡或柔性气凝胶;(2)将金属箔置于两层所述柔性隔热材料之间;(3)利用所述纤维布对置入金属箔的柔性隔热材料进行包裹后并缝合,得到所述耐高温隔热材料。本发明将金属箔作为芯层置于柔性隔热材料之间,并用纤维布将二者包裹后缝合使其一体化,利用金属箔的刚度和热沉效应以及柔性隔热材料的可压缩性和隔热性,使制备得到的材料不仅具备优异的耐高温性和隔热性,而且兼具随形性和维形性,可以满足飞行器外防热层与舱体之间不同缝隙的异型空间的隔热需求。
High-temperature-resistant thermal insulation material and preparation method thereof
一种耐高温隔热材料及其制备方法
2022-01-07
Patent
Electronic Resource
Chinese
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