Propriedades Mecânicas de Epóxis Utilizadas no Recobrimento Interno de Oleodutos e Gasodutos
M. Ferreira,Sergio S. Camargo,Bruno M. Barbosa,Ricardo V. B. Gomes,Marly Grinapel Lachtermacher,Joaquim Pereira Quintela +5 more
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TLDR
In this article, the epoxy-based coating materials suitable for in-situ internal application in gas/oil pipelines were studied and the effect from surface treatment on coating adhesion, impact, hardness and wear was evaluated.Abstract:
Mechanical properties of epoxy based coating materials suitable for in-situ internal application in gas/oil pipelines were studied. Coatings were applied on carbon steel substrates submitted to two different surface preparation procedures (ST3 and SA2½) and the effect from surface treatment on coating adhesion, impact, hardness and wear was evaluated. It was found that adhesion failure occurs through distinct mechanisms depending on coating material and surface preparation. Wear occurs mostly by abrasive mechanism, although adhesive wear was found to be significant in some cases also depending on material and surface. Microhardness, as expected, was found to be a coating property not unaffected by surface treatment.read more
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Coatings on glass
TL;DR: In this paper, a method of producing mirrors comprising depositing onto a ribbon of hot glass during the production process a coating comprising at least one pyrolytic reflecting layer and at least 1 color modifying layer whereby the mirrors exhibit color in reflectance and have a visible light reflection of at least 35 % and less than 70 %.