The influence of artificial aging on the properties of coating systems based on chromate-free primer VG-44 using epoxy, polyurethane, acrylic urethane and fluoropolyurethane enamels

Kuznetsova V.A., Emelyanov V.V., Marchenko S.A., Kovrizhkina N.A.
UDC
629.7.023
DOI
10.18577/2307-6046-2023-0-10-119-131
Article PDF (Russian) (601.86 KB)
How to cite
Kuznetsova V.A., Emelyanov V.V., Marchenko S.A., Kovrizhkina N.A. The influence of artificial aging on the properties of coating systems based on chromate-free primer VG-44 using epoxy, polyurethane, acrylic urethane and fluoropolyurethane enamels // Proceedings of VIAM. 2023. No. 10. DOI: 10.18577/2307-6046-2023-0-10-119-131. URL: https://test.viam.ru/en/journal/2023/10/11
Keywords
chromate-free primer, paint coating systems, adhesion, tensile strength, impact strength, water absorption, gloss, artificial aging
Abstract

The adhesion and impact strength of paint coating systems based on the chromate-free primer VG-44 with enamels VE-69, AK-1206, UR-1161 and EP-140 after artificial aging using the LI-14 method (–60÷+80) were studied.)°С during 16 cycles, as well as after thermal aging at temperatures of 80 °C – 1000 hours and 100 °C – 500 hours. The decorative properties of coatings based on the chromate-free primer VG-44 with enamels VE-69, AK-1206, UR-1161 and EP-140 after artificial aging were determined. It has been shown that artificial aging of the above paintwork systems does not have a significant effect on the strength of coatings upon impact, but leads to a decrease in tensile strength, as well as a decrease in the gloss of the coatings.

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