Influence of an Increased Controlled Dose of Irradiance on the Change of Selected Physicochemical Properties of Paint Systems Used in Rolling Stock

• Autorzy: Garbacz Marcin

Identyfikatory

DOI

10.36137/1971E

• Języki publikacji: EN

Abstrakty

EN

The article presents the results of ageing tests with the use of laboratory light radiation tested according to the EN ISO 16474-2 standard for painting systems used in rolling stock. The influence of aging on such properties as gloss, colour and hardness, was determined using two different irradiance settings of the order of 60 W/m2 and 120 W/m2 for the wavelength 300÷400 nm and the same levels of radiant exposure. In addition, this study describes the most important information about laboratory aging tests with simulation of sunlight, temperature, moisture including rain, which are included in ISO standardised test methods. The influence of weather parameters has been described, in particular the influence of an increased dose of irradiance on the degradation of selected physicochemical properties of coatings and the possibility of the predicted ageing progress (changes in selected properties). The obtained results of laboratory tests allow to make certain assumptions regarding the increase of the dose of irradiance and thus the shortening of the laboratory testing time in the context of the assessment of the most desirable properties of the coating for a given application with the use of laboratory ageing tests.

Słowa kluczowe

EN

accelerated weathering; xenon-arc radiation; paint coatings; irradiance; radiant exposure; hardness; gloss; colour; rolling stock

• Wydawca: Instytut Kolejnictwa
• Czasopismo: Problemy Kolejnictwa
• Rocznik: 2022
• Tom: Z. 197
• Strony: 99--115
• Opis fizyczny: Bibliogr. 31 poz., tab., wykr.

Twórcy

autor

Garbacz Marcin

• Railway Research Institute, Materials & Structure Laboratory

Bibliografia

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• 10. ISO/TS 19022:2016: Plastics – Method of controlled acceleration of laboratory weathering by increased irradiance.
• 11. EN ISO 16474-2:2013-02: Paints and varnishes. Methods of exposure to laboratory light sources. Part 2 – Xenon-arc lamps.
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• 15. ISO 4628-1:2016-03: Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 1: General introduction and designation system.
• 16. ISO 4628-2:2016-03: Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 2: Assessment of degree of blistering.
• 17. ISO 4628-3:2016-03: Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting.
• 18. ISO 4628-4:2016-03: Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 4: Assessment of degree of cracking.
• 19. ISO 4628-5:2022-03: Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 5: Assessment of degree of flaking.
• 20. ISO 4628-6:2011: Paints and varnishes − Evaluation of degradation of coatings − Designation of quantity and size of defects, and of intensity of uniform changes in appearance − Part 6: Assessment of degree of chalking by tape method.
• 21. ISO 7724-1:1984: Paints and varnishes – Colorimetry − Part 1: Principles.
• 22. ISO 7724-2:1984: Paints and varnishes − Colorimetry − Part 2: Colour measurement.
• 23. ISO 7724-3:2003: Paints and varnishes − Colorimetry − Part 3: Calculation of colour differences.
• 24. EN ISO 2813:2014: Paints and varnishes – Determination of gloss value at 20°, 60° and 85°.
• 25. EN ISO 1522:2006: Paints and varnishes – Pendulum damping test.
• 26. PN-79/C-81530: Paint products – Determination of the hardness of coatings.
• 27. EN ISO/IEC 17025:2017-02: General requirements for the competence of testing and calibration laboratories.
• 28. Procedura badawcza nr PB-LK-C08 w.2: Oznaczanie odporności powłok lakierniczych na działanie światła laboratoryjnego i warunków pogodowych [Test procedure no. PB-LK-C08 w.2: Determination of resistance of paint coatings to laboratory light and weather conditions].
• 29. Procedura badawcza nr PB-LK-C07 w.2: Oznaczanie wartości połysku pod kątem 20/60/85° [Test procedure no. PB-LK-C07 v.2: Determination of the gloss value at the angle of 20/60/85°].
• 30. Procedura badawcza nr PB-LK-C06 w.2: Oznaczanie współrzędnych i różnic barwy powłok lakierniczych [Test procedure no. PB-LK-C06 v.2: Determination of coordinates and color differences of paint coatings].
• 31. Procedura badawcza nr PB-LK-C12 w.1: Oznaczanie twardości metodą tłumienia wahadła [Test procedure no. PB-LK-C12 v.1: Determination of hardness by pendulum damping method].

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).