Fluorocarbon coating-containing aircraft wing shell

Abstract

The invention relates to a fluorocarbon coating-containing aircraft wing shell, which includes a skin substrate and a protective coating. The protective coating comprises a layer of zinc yellow acrylic polyurethane primer and two layers of fluorocarbon finish paint. The A component of the fluorocarbon finish paint consists of: high hydroxyl fluorine-containing acrylic resin, color filler, nano-magnesium oxide, nano-titanium dioxide, a leveling agent, a defoaming agent, a dispersing agent, a catalyst and a solvent. The aircraft wing shell provided by the invention can better adapt to current increasingly harsh flight conditions, thus improving the flight safety.

Description

technical field

[0001] The invention relates to an aircraft wing shell containing fluorocarbon coating. Background technique

[0002] With the application of aluminum, magnesium and other alloy materials and composite materials in the aircraft manufacturing industry, the performance of the aircraft, especially the flight speed, has been greatly improved. Now the flight speed of the aircraft can exceed 1km / s. Since the friction force on a moving object is proportional to the square of the speed, the increase in flight speed puts forward higher requirements on the performance of the aircraft shell, especially temperature resistance, UV resistance, freeze-thaw cycle resistance, and air resistance. Abrasion resistance, rain erosion resistance, etc., so it is usually necessary to install a protective coating on the wing shell of the aircraft. The coating is generally formed by spraying paint, but the existing conventional coatings are difficult to meet the increasingly stringent ...

Examples

Embodiment Construction

[0021] An aircraft wing shell, comprising a skin substrate and a protective coating, the protective coating comprises one layer of zinc yellow acrylic polyurethane primer and two layers of fluorocarbon topcoat. The dry film thickness of the zinc yellow acrylic polyurethane primer is 22 microns, the dry film thickness of the middle fluorocarbon topcoat is 44 microns, and the dry film thickness of the outer fluorocarbon topcoat is 47 microns.

[0022] The protective coating is formed by spraying a paint on the surface of the skin substrate, and the paint includes a fluorocarbon paint. Preferably, the A component of the fluorocarbon paint includes the following components: by weight, high hydroxyl fluorine-containing acrylic resin 61- 65%, color filler 20-26%, nano-magnesia 3%, nano-titanium dioxide 3.5%, leveling agent 1%, defoamer 0.8%, dispersant 1.2%, catalyst 0.5%, solvent 3-5%. More preferably, the fluorocarbon coating A component includes the following components: by weigh...

technical field

[0001] The invention relates to an aircraft wing shell containing fluorocarbon coating. Background technique

[0002] With the application of aluminum, magnesium and other alloy materials and composite materials in the aircraft manufacturing industry, the performance of the aircraft, especially the flight speed, has been greatly improved. Now the flight speed of the aircraft can exceed 1km / s. Since the friction force on a moving object is proportional to the square of the speed, the increase in flight speed puts forward higher requirements on the performance of the aircraft shell, especially temperature resistance, UV resistance, freeze-thaw cycle resistance, and air resistance. Abrasion resistance, rain erosion resistance, etc., so it is usually necessary to install a protective coating on the wing shell of the aircraft. The coating is generally formed by spraying paint, but the existing conventional coatings are difficult to meet the increasingly stringent ...

Examples

Embodiment Construction

[0021] An aircraft wing shell, comprising a skin substrate and a protective coating, the protective coating comprises one layer of zinc yellow acrylic polyurethane primer and two layers of fluorocarbon topcoat. The dry film thickness of the zinc yellow acrylic polyurethane primer is 22 microns, the dry film thickness of the middle fluorocarbon topcoat is 44 microns, and the dry film thickness of the outer fluorocarbon topcoat is 47 microns.

[0022] The protective coating is formed by spraying a paint on the surface of the skin substrate, and the paint includes a fluorocarbon paint. Preferably, the A component of the fluorocarbon paint includes the following components: by weight, high hydroxyl fluorine-containing acrylic resin 61- 65%, color filler 20-26%, nano-magnesia 3%, nano-titanium dioxide 3.5%, leveling agent 1%, defoamer 0.8%, dispersant 1.2%, catalyst 0.5%, solvent 3-5%. More preferably, the fluorocarbon coating A component includes the following components: by weigh...