Aircraft wing housing with coating

Abstract

An aircraft wing housing with a coating comprises 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. A component A of the fluorocarbon finish paint comprises: high hydroxyl fluorine-containing acrylic resin, pigment and filler, nanometer magnesia, nano-titanium dioxide, a levelling agent, an antifoaming agent, a dispersant, a catalyst and a solvent. The aircraft wing housing provided by the invention can be better suitable for current increasingly harsh flight condition, thus raising flight security.

Description

technical field [0001] The invention relates to a coated aircraft wing skin. 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 requirements of the current...

AI Technical Summary

Problems solved by technology

However, the existing fluorocarbon coatings generally have defects such as insufficient crosslinking degree, high cost due to high proportion of fluorine-containing monomers, low solid content and high VOC content, resulting in environmental pollution and other defects.