Graphene Technology in Water-Based Corrosion Prevention

AGM receives UK patent for graphene nanoplatelet use in water-based anticorrosive coatings. Applied Graphene Materials (AGM) (Redcar and Cleveland, United Kingdom), a manufacturer of specialised graphene nanoplatelet dispersions, announced the publication of UK Patent GB2585648 covering the use of graphene nanoplatelets in water-based anticorrosive protective coating applications. Graphene nanoplatelets have been shown to provide highly effective barrier properties by improving corrosion prevention in solvent-based paints through the use of high-performance dispersions. The incorporation of graphene nanoplatelets into water-based paints has historically been problematic due to challenges in producing effective and stable dispersions for such systems. AGM's range of water-based dispersions has been demonstrated to enhance corrosion performance in such systems. This technology development enables primer systems to achieve ISO 12944 category C3 or C4 corrosion rating performance in environments typical of urban and industrial atmospheres, moderate sulphur dioxide pollution, or coastal regions with low to moderate salinity. AGM CEO Adrian Potts said: "The global cost of corrosion is significant and there is considerable and growing pressure in the international coatings industry to reduce and ultimately eliminate dependence on harmful volatile organic compounds (VOCs). The move towards a water-based technology solution is a primary goal for many protective coating innovators. Overcoming the challenge of dispersing graphene nanoplatelets into such coatings has been an important development area for AGM's technical team, and I am pleased this technology has resulted in patent coverage. This latest dispersed product technology provides a new tool to the coatings industry in formulating water-based systems. By enabling the use of graphene nanoplatelet materials, it supports moving away from solvent-based products and provides another opportunity to narrow the gap in performance between solvent and water-based coatings."

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