Coatings Trends & Technologies
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John Willhite

John Willhite
Business Development Manager
Applied Graphene Materials Ltd.

John Willhite has been the Business Development Manager NA for Applied Graphene Materials since September 2018. He has 47 years of experience in the coatings industry. He has worked for AkzoNobel, Ameron, Jones-Blair, Hillyard, CCP, Nuplex and allnex. His responsibilities have focused on general industrial metal finishes, coatings for aluminum extrusions, exterior wood stains, gym floor finishes, concrete coatings and specialty architectural finishes. He has presented in the past to local FSCT chapters and ACA conferences. John has a B.S. in Chemistry from Southern Arkansas University.

A Novel, Non-Metal Graphene Nano Platelet Hybrid Anti-Corrosive System for Tomorrow’s Protective Coatings¬†¬†
The prevention of corrosion and the preservation of infrastructure is a key role for today’s coatings, with the total direct cost of corrosion being estimated at $442 billion per year (approximately 3.1% of the U.S. gross domestic product GDP). Anti-corrosive pigments however have come and continue to be under environmental pressure, which combined with continuing efforts to minimize environmental impact, poses a challenge. There is therefore a need to develop novel anti-corrosive systems with performance at least equal to that of current anti-corrosive pigments, which extend performance life. Graphene’s two-dimensional structure and known barrier performance is particularly suited for use as a multi-functional additive in paints and coatings. The mechanism by which graphene delivers anti-corrosion properties has been proposed to be a combination of a physiochemical process restricting uptake of water (combined with oxygen and salt) and electrochemical. This work sets out to report the meaningful anti-corrosive performance gains in epoxy primer systems for C3 (ISO12944) type environments, against zinc phosphate systems and potential application into C4 and C5 type environments, through the use of graphene nanoplatlets.