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7. Oct 2022 | Application Areas

Enhanced anticorrosion by modified basalt powder

Researchers have studied the anticorrosion properties of modified basalt powder in epoxy resin coatings.
Corrosion on a coated surface.
The corrosion resistance was 7.8 times higher than that of neat epoxy coating. 
Image source: blende11photo - (symbol image).

In the study, 3-aminopropyltrimethoxysilane (APTMS) was used as a coupling agent to modify the surface of basalt powder. The modified basalt powder (MBP) was added to epoxy resin in different proportions as fillers, and the coatings with different MBP contents were prepared by applying the mixture on the metal substrates. The hardness of coatings can be enhanced up to 0.25 GPa with the increase in MBP, and the elastic of coatings increases to the highest of 4.97 GPa for MBP-10/EP. Their water absorption rates after soaking in water for 21 h decreased to 0.75%.

Improved corrosion resistance

The corrosion resistance of EP coating also was improved by adding MBP after being immersed in 3.5 wt% NaCl solution for 15 d, which was 7.8 times higher than that of neat epoxy coating (MBP-0/EP).

The study has been published in Journal of Coatings Technology and Research, Volume 19, September 2022.

EC Techb Report Sustainability


EC Tech Report Sustainability

Making coating systems more environmentally compatible is a burning issue for everyone in the industry, and one that is being fuelled by the European Green Deal. Learn all you need to know about sustainable coatings, how to produce coatings in a more environmentally friendly way and how to give coated products a longer service life. You will find an overview in the EC Tech Report of the many various approaches being adopted. We will dive deep into the European Green Deal, its key points and main purpose as well as consequences for the coating industry, see which new raw materials are being developed to replace or lower the content of products in the SVHC group and learn about different approaches to sustainable paint formulation.

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