Summary of testing performance and methods for aerospace coatings

Aerospace coating is a special coating applied to the surface of aerospace spacecraft. It has the characteristics of high temperature resistance, radiation resistance, oxidation resistance and corrosion resistance, which can protect the surface of aerospace spacecraft from the extreme environment encountered in high-altitude flight and extend its service life. Aerospace coatings have a wide range of applications, covering various parts of aircraft, satellites, rockets and other aerospace spacecraft, such as fuselage, engine, wing surface, etc.

Performance of detection
The performance testing of aerospace coatings needs to consider several factors to ensure that they meet the requirements and safety requirements of aerospace and spacecraft. The following is a detailed description of the performance parameters to be tested for aerospace coatings:

Parameters of performanceMethod of testStandard of inspection
Resistance to heatTga measurementno
Resistance to corrosionSalt spray test, corrosion testGB/T 1771-2007
Resistance to radiationX-ray irradiation test, proton irradiation testno
Force of adhesionMethod of delimitingGB/T 9286-1998
Resistance to weatherLight aging testGB/T 16422.2-2014
Resistance to abrasionWear and tear testASTM D4060-14
Scratch resistanceScratch testno
Chemical resistanceChemical immersion testno
Degree of glossGlossometer measurementGB/T 9754-2007
Difference of colorColor comparator measurementGB/T 1543-2008

Summary of testing performance and methods for aerospace coatings

Method of detection
The following is a detailed description of the test method for the performance parameters to be tested for aerospace coatings:

Thermal resistance: Thermal stability and thermal decomposition characteristics of coatings at high temperatures are measured using a thermogravimetric analyzer.

Corrosion resistance: Using salt spray test, corrosion test and other methods to simulate the corrosion resistance of aerospace spacecraft in different corrosive environments.

Radiation resistance: use X-ray irradiation test, proton irradiation test and other methods to simulate the radiation resistance performance of aerospace spacecraft in radiation environment.

Adhesion: A peel test is used to measure the adhesion strength between the coating and the substrate.

Weather resistance: use light aging test to simulate the weather resistance of aerospace spacecraft under different light and climate conditions.

Wear resistance: The wear test is used to measure the wear degree and wear resistance of the coating under different wear conditions.

Scratch resistance: The scratch test was used to measure the scratch degree and scratch resistance of the coating under different scratch conditions.

Summary of testing performance and methods for aerospace coatings

Chemical resistance: chemical immersion test is used to simulate the chemical resistance of spacecraft in different chemical environments.

Gloss: Use a gloss meter to measure the gloss of the coating and evaluate the gloss effect and gloss stability of the surface.

Color difference: Use a color comparator to measure the color difference of the coating and evaluate its color consistency and accuracy.

We reminds you that different performance parameters may require different test methods and equipment, and there may be some industry standards and specifications, for the performance testing of aerospace coatings, the corresponding test methods and standards should be selected according to the actual needs.

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