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CED Working Day and Symposium on ‘Managing Corrosion in Low-Carbon Energy Technologies’
CED Working Day and Symposium on ‘Managing Corrosion in Low-Carbon Energy Technologies’
28 April 2021
Free online Zoom meeting
For further details including the working party agendas please click here
Enhanced weathering performance of epoxy/ZnO nanocomposite coatings
A new report aims at improving the weathering performance of an epoxy coating via surface treatment of zinc oxide (ZnO) nanoparticles with different silane coupling agents.
The main target of treatment was to suppress the photocatalytic activity of ZnO nanoparticles during weathering exposure. Amino- and glycidoxy-functional silane coupling agents (at three concentration levels) were used for this purpose. The positive influence of such treatment on the weathering performance was proved using different (aesthetic, mechanical, chemical, and topological) techniques. It was also revealed that modification with the stoichiometric or higher (1.5 stoichiometric) level of silane coupling agents was more effective in such improvement.
The study was published in Progress in Organic Coatings, Volume 147, October 2020.
CED working day April 28th 2021 – ‘Managing Corrosion in Low-Carbon Energy Technologies’,
CED working day April 28th 2021: Managing Corrosion in Low-Carbon Energy Technologies. The Corrosion Engineering Division will be holding its Spring Working Day on April 28th 2020. If the Covid-19 situation allows it, the meeting will be held at the York National...Enhanced barrier properties of epoxy coatings
A new study describes the barrier properties of epoxy coating containing CaCO3 microparticles modified with cerium nitrate.
In the study, the protective properties of epoxy coatings containing pH-sensitive calcium carbonate (CaCO3) microparticles modified with cerium nitrate (Ce (NO3)3), applied to mild steel substrates, were investigated in 3.5 wt. % NaCl solution, via electrochemical impedance spectroscopy (EIS) and salt spray testing. Scanning electron microscope (SEM), X-ray powder diffraction (XRD) and inductively coupled plasma (ICP) tests were performed to evaluate the characteristics of the synthesised CaCO3 microparticles.
Results showed that the modification process changed the morphology of the particles and loaded them with Ce(III). EIS and salt spray tests showed that the incorporation of the modified CaCO3 microparticles to epoxy coatings can enhance their corrosion protection.
The corrosion protection performance of the coating was affected by the amount of incorporated microparticles, in that increasing the amount of modified CaCO3 microparticles led to higher corrosion protection. Increasing the Ce(III) ions content of the CaCO3 microparticles led to similar behaviour.
The study was published in Progress in Organic Coatings, Volume 144, July 2020.