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Autonomous self-healing coating of PMMA microcapsules filled with epoxy

Mohammed Alaa Fares, Hamza Ahmed Fadhil, Al-Kawaz Ammar Emad

Diagnostyka

2022

Vol. 23, No. 1

no. art. 2022108

Composites that owns healing property has acquired wide range of application especially in coatings. Microcapsules embedded coatings provide both damage protection and damage management imposing itself among the sophisticated applications. Although the microcapsules coatings have spectacular aspect, their effect on coating properties still under study due the broad properties variation of microcapsules. In this work, PMMA microcapsules filled with Bisphenol-A epoxy is incorporated into epoxy coating. The coating is self-healing and can be used for anti-corrosion applications. The properties of the prepared coating were investigated via scratch test and through microhardness test and the healing process is monitored through optical microscope. The investigation shows that embedding microcapsules into epoxy matrix will achieve both in self-healing coating and better performance.

The impact of the coating system for rolling stock on fire and anti-corrosion properties

Pasieczyński Łukasz, Radek Norbert

System Safety : Human - Technical Facility - Environment

2019

Vol. 1, nr 1

790--796

Paper discusses results of experimental research aimed at developing of an anti-graffiti paint system for passenger rail vehicles which fulfill the requirements of coating flammability characteristics according to EN 45545-2+A1:2015-12. The most important element of effective fire protection is the use of fire-resistant materials limiting the spread of fire and smoke in rolling stock. Coating system has to meet requirements in the field of fire properties with maintaining the desired performance parameters, such as protective and decorative properties. The development works that are the subject of this article were started by testing standard coating system flammable properties. Next stage of research was to modified fire properties of polyester putty. The tests have shown the effectiveness of the use of a protective paint that allows meeting the requirements in the field of fire safety. In addition, measurements of the corrosion resistance of anti-graffiti coatings were made.