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Title: Evaluation of internal stress influence on durability of powder paint coatings
Authors: Prokopchuk, N. R.
Kukhta, T. H.
Keywords: порошковые краски
долговечность покрытий
лакокрасочные покрытия
внутренние напряжения
Issue Date: 2014
Publisher: BSTU
Citation: Prokopchuk, N. R. Evaluation of internal stress influence on durability of powder paint coatings / N. R. Prokopchuk, T. H. Kukhta // Proceedings of BSTU. No. 4. – Minsk : BSTU, 2014. – P. 49-53
Description: Method for determination of internal stresses influence on durability of powder paint coatings is developed. The method is based on the difference ofthermal-oxidative degradation activation energy of cross ЕD-linked film-forming material within loose and metal-bedded film. It is shown that powder paint coatings internal stresses are insignificant as metal-bedded cross-linked film-forming material does not take big deformations of coatings in the process of their formation as well as during the usage. Reduction of thermal-oxidative degradation activation energy of the parameter ЕDwith such internal stresses is only 3–7 kJ/mol and it does not reduce the coatings durability much in comparison with the influence of the factor of the climatic chamber of UV radiation and high temperatures.
Appears in Collections:2014, № 4

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