The invention discloses a fire disaster low-altitude flight rescue unmanned aerial vehicle fuselage light material surface coating and a preparation method thereof. The coating comprises a bonding layer, an anti-oxidation layer, an oxygen propagation prevention layer and a reflective thermal insulation layer. The preparation method comprises the following steps: selecting a material with a thermal expansion coefficient similar to that of a light material, and preparing a bonding layer on the surface of the light material; heating and oxidizing the bonding layer, so that a compact oxidation film is generated on the surface of the bonding layer to form an anti-oxidation layer; preparing an oxygen propagation prevention layer on the surface of the anti-oxidation layer by using a ceramic material; and preparing a reflective thermal insulation layer on the surface of the oxygen propagation prevention layer by using the ceramic material. According to the invention, the coating has a matched thermal expansion coefficient with a light fuselage material of the unmanned aerial vehicle, and the unmanned aerial vehicle fuselage has oxidation resistance by combining extremely low thermal conductivity, high reflectivity and extremely strong oxygen transmission resistance of each layer of material in the coating, so that the working temperature of the unmanned aerial vehicle is increased, and it is ensured that the unmanned aerial vehicle can be used in fire disaster rescue and can be used for a long time.
本发明公开了一种火灾低空飞行救援无人机机身轻质材料表面涂层及其制备方法,所述涂层包括粘结层、抗氧化层、阻氧传播层和反射隔热层,制备步骤如下:先选择与轻质材料具有相近热膨胀系数的材料,在轻质材料表面制备形成粘结层;然后加热氧化粘结层,使其表面生成致密氧化膜,形成抗氧化层;用陶瓷材料在抗氧化层表面制备形成阻氧传播层;用陶瓷材料在阻氧传播层表面制备形成反射隔热层。本发明制备的涂层与无人机的机身轻质材料具有匹配的热膨胀系数,通过结合涂层中各层材料极低的热导率、高反射率和极强的阻氧传播性,使无人机机身具有抗氧化性,提高无人机的工作温度,保证其能在火灾救援中使用并能长期服役使用。
Fire disaster low-altitude flight rescue unmanned aerial vehicle fuselage light material surface coating and preparation method thereof
一种火灾低空飞行救援无人机机身轻质材料表面涂层及其制备方法
2022-01-28
Patent
Electronic Resource
Chinese
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