Experimental investigation of coating degradation during simultaneous acid and erosive particle exposure

Victor Buhl Møller, Kim Dam-Johansen, Sarah Maria Frankær, Søren Kiil

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Abstract

When used in industrial processes, such as stirred acid leaching in the mineral industry, thermoset coatings are exposed to a combination of aggressive chemicals and erosive particlewear. While each exposure condition has been studied separately, no research has been presented on the effects of a simultaneous exposure. To investigate this, a pilot-scale stirred acid leaching tank, containing erosive particles and acidic solutions, has been designed and constructed. Resin types considered are amine-cured novolac epoxy and vinyl ester. Transient coating degradation is mapped through visual inspection and changes in film thickness.The new set-up, capable of experimenting with erosive particles in acidic solutions, is presented. In addition, results from preliminary experiments, using abrasive particles and water in a high-speed disperser, are discussed.
Original languageEnglish
Publication date2015
Number of pages8
Publication statusPublished - 2015
Event11th Coatings Science International 2015 - Hotel van Oranje, Noordwijk, Netherlands
Duration: 22 Jun 201526 Jun 2015

Conference

Conference11th Coatings Science International 2015
LocationHotel van Oranje
CountryNetherlands
CityNoordwijk
Period22/06/201526/06/2015

Cite this

Møller, V. B., Dam-Johansen, K., Frankær, S. M., & Kiil, S. (2015). Experimental investigation of coating degradation during simultaneous acid and erosive particle exposure. Abstract from 11th Coatings Science International 2015, Noordwijk, Netherlands.