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A kind of aircraft wing skin with protective coating

A protective coating and aircraft technology, applied in coatings, aircraft parts, fuselage and other directions, can solve the problems of high VOC content, low solid content, and high cost, improve flight safety, reduce flight costs, and increase usage. effect of life

Active Publication Date: 2015-09-23
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] An aircraft wing shell comprises a skin substrate and a protective coating, and the protective coating comprises a 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 19 microns, the dry film thickness of the middle fluorocarbon topcoat is 41 microns, and the dry film thickness of the outer fluorocarbon topcoat is 50 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...

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Abstract

An aircraft aerofoil housing with a protection coating comprises a skin covering base material and the protection coating. The protection coating comprises a layer of a zinc yellow acrylic polyurethane primer and two layers of a fluorocarbon finishing coat, and an A component of the fluorocarbon finishing coat includes the following components: high hydroxyl fluorine-containing acrylic resin, a color filler, nano magnesium oxide, nano titanium dioxide, a leveling agent, a defoaming agent, a dispersing agent, a catalyst and a solvent. The aircraft aerofoil housing with the protection coating can better adapt to the increasingly rigorous flight conditions at present, and improves the flight safety.

Description

technical field [0001] The invention relates to an aircraft wing skin provided with a protective 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 in 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 stringen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B33/00B32B27/06B64C1/00C09D133/14C09D133/16C09D7/12C08F220/28C08F220/22
Inventor 张俊
Owner LIYANG TECH DEV CENT