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Journal of Coatings Technology and Research
Erschienen in: Journal of Coatings Technology and Research 6/2016

17.08.2016

The improvement of ecological characteristics of coatings from cured epoxy resins by hot water extraction

verfasst von: Tomasz Jeliński, Piotr Cysewski

Erschienen in: Journal of Coatings Technology and Research | Ausgabe 6/2016

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Abstract

Amine curing agents pose serious health hazards and controlling their release is crucially important. Extraction of unbounded amine from cured epoxy polymers can improve the ecological characteristics of such products. Even 1 min exposure of cured epoxy resins to hot water reduces three- to ten-fold the residual amount of amine present in the epoxy polymer. Different temperatures and extraction times were tested, enabling the selection of the most optimal extraction conditions, which correspond to 5 min of heating in 100°C. This additional cost-effective extraction step is very easy to perform and leads to a significant reduction of unbounded curing agent, making cured epoxy resins much more eco-friendly products. The documented positive and linear trends of logarithms of viscosity and the amount of released amine suggest the selection from such curing agents and such epoxy resins that are characterized by lowest possible viscosities, which guarantees that there is only a low amount of unbounded amine that needs to be released from the polymer.
Vorheriger Artikel Corrosion protection of aluminum alloy substrate with nano-silica reinforced organic–inorganic hybrid coatings
Nächster Artikel Flow and heat transfer of two immiscible fluids in double-layer optical fiber coating

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Metadaten
Titel
The improvement of ecological characteristics of coatings from cured epoxy resins by hot water extraction
verfasst von
Tomasz Jeliński
Piotr Cysewski
Publikationsdatum
17.08.2016
Verlag
Springer US
Erschienen in
Journal of Coatings Technology and Research / Ausgabe 6/2016
Print ISSN: 1547-0091
Elektronische ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-016-9816-2

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