Nanocomposite conformal corrosion barrier coating
| DWPI Title: Corrosion barrier coating comprise one layer of dispersed and aligned inorganic platelets in a polyelectrolyte polymer matrix deposited on corrodible metal substrate and corrosion barrier coating has improved stability |
| Abstract: Metals across all industries demand anti-corrosion surface treatments and drive a continual need for high-performing and low-cost coatings. Ordered thin films comprising aligned inorganic platelets dispersed in a polyelectrolyte polymer matrix provide a new class of transparent conformal barrier coatings for protection in corrosive atmospheres. For example, films assembled via layer-by-layer deposition, as thin as 90 nm, are shown to reduce copper corrosion rates by >1000× in an aggressive H2S atmosphere. These coatings can provide high-performing anti-corrosion treatment alternatives to costlier, more toxic, and less scalable thin films, such as graphene, hexavalent chromium, or atomic layer deposited metal oxides. |
| Use: Corrosion barrier coating used to protect microelectronics and medical devices against corrosion, examine the corrosion behavior of copper plates, and develop barrier films. |
| Advantage: The corrosion barrier coating provide high-performing anti-corrosion treatment alternatives to costlier products, with more toxicity, and less scalable thin films, such as graphene, hexavalent chromium, or atomic layer deposited metal oxides, has high-performing and low-cost, improved stability, minimization of through-film defects via the multi-step coating process, and allows incorporation of electrically insulating clay constituents, and simple and scalable deposition process and has nanocomposite conformation. |
| Novelty: Corrosion barrier coating comprise one layer of dispersed and aligned inorganic platelets in a polyelectrolyte polymer matrix deposited on a corrodible metal substrate. |
| Filed: 6/14/2018 |
| Application Number: US16008994A |
| Tech ID: SD 14225.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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