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Depth-resolved FTIR focal plane array (FPA) spectroscopic imaging of the loss of melamine functionality of polyester melamine coating after accelerated and natural weathering
RISE Research Institutes of Sweden.
SSAB Europe, Sweden.
RISE Research Institutes of Sweden, Materials and Production, Corrosion.ORCID iD: 0000-0001-5982-2760
SSAB Europe, Sweden.
2020 (English)In: Polymer testing, ISSN 0142-9418, E-ISSN 1873-2348, Vol. 86, article id 106500Article in journal (Refereed) Published
Abstract [en]

FTIR-ATR (Focal Plane Array) FPA spectroscopic imaging was used to obtain depth resolved information about degradation of a polyester melamine coating by performing measurements on drilled conical holes. The results of the FTIR-FPA imaging show that combined effect of UV and moisture resulted in larger degradation effects in the outermost parts of the coatings but loss of melamine functionality was detected to the depth of approximately 8–10 μm after 2163 h weathering in QUVA accelerated test and after 4 years exposure in a marine environment. Longer periods of accelerated weathering, up to 4000 h, resulted in degradation through the whole coating outer layer.

Place, publisher, year, edition, pages
Elsevier Ltd , 2020. Vol. 86, article id 106500
Keywords [en]
Accelerated weathering, Coil coating, Degradation, Depth profiling, Field exposure, FTIR focal plane array imaging, Polyester melamine, Coatings, Focal plane arrays, Focusing, Thallium alloys, Coil coatings, Degradation effect, Natural weathering, Polyester-melamine, Polyester-melamine coatings, Spectroscopic imaging, Weathering
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-44711DOI: 10.1016/j.polymertesting.2020.106500Scopus ID: 2-s2.0-85082389884OAI: oai:DiVA.org:ri-44711DiVA, id: diva2:1426761
Available from: 2020-04-27 Created: 2020-04-27 Last updated: 2020-04-27Bibliographically approved

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Edvinsson, Camilla

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