The invention relates to a high-temperature-resistant buffer thermal insulation layer for an aircraft and a preparation method thereof. The method comprises the following steps: performing high-speed sand blasting on the surface of the aircraft casting, and coating a surfactant to form an active connecting layer; hydrogenated butadiene-acrylonitrile rubber sheets are cut according to the outer surface of the aircraft casting, the hydrogenated butadiene-acrylonitrile rubber sheets are attached to the active connecting layer on the surface of the aircraft casting in a spliced mode through an adhesive, vacuum heating is conducted, and a high-temperature-resistant buffer layer is formed; after the high-temperature-resistant buffer thermal insulation layer is coated with an adhesive, hot-melt phenolic aldehyde prepreg cloth is cut, the multiple pieces of cut hot-melt phenolic aldehyde prepreg cloth are spliced and bonded to the surface of the high-temperature-resistant buffer thermal insulation layer, and after curing, a thermal protection thermal insulation layer is formed; water-based four-proofing paint is sprayed on the surface of the thermal protection thermal insulation layer, and a high-temperature-resistant buffer thermal insulation layer is formed on the surface of the aircraft By means of the preparation method of the high-temperature-resistant buffer layer for the aircraft, the high-temperature-resistant buffer heat insulation layer which is good in temperature resistance and aging resistance and high in strength can be formed on the surface of an aircraft casting.
本发明涉及一种用于飞行器的耐高温缓冲隔热层及其制备方法;步骤为:向飞行器铸件表面高速喷砂,涂覆表面活性剂,形成活性连接层;按照飞行器铸件外表面剪裁氢化丁腈橡胶片,将氢化丁腈橡胶片通过胶黏剂以拼接形式粘附于飞行器铸件表面的活性连接层上,真空加热,形成耐高温缓冲层;在耐高温缓冲隔热层上涂覆胶黏剂后,剪裁热熔酚醛预浸布,将剪裁的多个热熔酚醛预浸布拼接并粘结于高温缓冲隔热层表面,固化后,形成热防护隔热层;在热防护隔热层表面喷涂水性四防漆,在飞行器铸件表面形成耐高温缓冲隔热层;通过用于飞行器的耐高温缓冲层制备方法的提出,可以在飞行器铸件表面形成具有较好的耐温性能,耐老化性能,高强度的耐高温缓冲隔热层。
High-temperature-resistant buffer thermal insulation layer for aircraft and preparation method thereof
一种用于飞行器的耐高温缓冲隔热层及其制备方法
2023-09-29
Patent
Electronic Resource
Chinese
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