A color-developing paint for inspecting fuel spillage from aircraft during flight

Abstract

The invention provides a color-developing paint used for inspecting fuel spillage of an aircraft during flight, which belongs to the paint collar. The color-developing coating provided by the present invention for inspecting fuel spillage of an aircraft during flight comprises 30-50 parts of oil-soluble resin, 30-50 parts of solvent, 0.5-2 parts of fluorescent color developer, 5-5 parts by weight 18 parts of toughening agent, 0.1-0.5 parts of coating additives. The coating film formed by this coating can withstand the maximum air velocity of 0.85Ma during the flight test of the aircraft without falling off; the drying time at 25°C is controlled to about 2‑3 hours; it does not crack or fall off at ‑60°C; the coating film can Smooth and flat; excellent performance, water resistance, heat and humidity resistance, high and low temperature cycle resistance; excellent color rendering, the color will be dissolved immediately when the fuel drips, and the color development traces will remain; the coating is easy to remove, and the aviation fuel can be easily removed after the aircraft test flight Wipe off; no harm to aircraft skin after removal.

Description

technical field [0001] The invention relates to a paint, in particular to a color-developing paint used for inspecting fuel spillage of an aircraft during flight. Background technique [0002] At present, the commonly used model of aircraft fuel in my country is RP-3. Since this type of aviation fuel is a clear and transparent liquid and is volatile, the leaked aviation fuel will volatilize quickly under high-speed airflow, making it difficult to monitor. According to the flight test requirements, in order to monitor whether there is aviation fuel leaking from the vent of the aircraft fuel tank during the flight test, it is necessary to coat a coating around the vent of the aircraft fuel tank to detect spilled fuel, that is, to absorb the fuel tank vent during the flight test spilled fuel and leave valid evidence. The main components of aviation fuel are saturated alkanes with 10 to 16 carbon atoms and aromatic hydrocarbon mixtures with a volume fraction of no more than 25%...

AI Technical Summary

Problems solved by technology

The main components of aviation fuel are saturated alkanes with 10 to 16 carbon atoms and aromatic hydrocarbon mixtures with a volume fraction of no more than 25%. Its chemical properties are very stable and it is difficult to have chemical and color reactions with other substances. There is no mature aviation fuel color rendering paint, and this color rendering problem has always been a difficulty in the flight test process

[0003] In the prior art, the Chinese patent CN 103148997 A provides a color-developing paint for fuel oil, but the color-developing paint developed by it dissolves in water, has poor adhesion, and will fall off during the flight test, and the color-developing effect is not good after the fuel is absorbed. good

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