Novel Atmospheric-Pressure Plasma Curing of Anti-corrosion Silicon-based Coating
| Autoři | |
|---|---|
| Rok publikování | 2025 |
| Druh | Další prezentace na konferencích |
| Fakulta / Pracoviště MU | |
| Citace | |
| Popis | Metal corrosion poses substantial risks to safety, economics, and the environment across industries and daily life, with associated costs estimated at 1-5% of each nation’s Gross National Product. While conventional polymer-based coatings provide optical and protective benefits, they often fail in acidic or basic environments, allowing corrosive elements to penetrate and degrade the underlying metal. This has driven the development of advanced anti-corrosion coatings to extend product longevity. Silicon-based polymers, such as Polysilazane (PSZ), offer exceptional chemical resistance, high-temperature stability, sunlight resistance, and flexibility. This research introduces a novel approach to crosslinking the spray-coated PSZ on the flexible copper foil substrate utilizing a low-temperature atmospheric-pressure plasma. The Multi-Hollow Surface Dielectric Barrier Discharge was used as a source of plasma and plasma-generated species for remote plasma curing of PSZ coatings. As shown, the plasma-based curing approach can replace the standard long-time (up to 7 days) and high temperature (>150°C) curing methods and significantly reduce the processing time to short curing times typically less than five minutes and thus enhance the productivity and energy efficiency. The anti-corrosion performance of the coatings was comprehensively analyzed under repeated bending stress and in various environments (acidic, basic, and saline), using EIS. Additionally, the crosslinking process is thoroughly characterized through FTIR and XPS analyses. Hydrophobicity and adhesion are evaluated using surface-free energy measurements and adhesion tests. This study aims to advance the development of effective anti-corrosion coatings by providing insights into the distinctive crosslinking mechanism enabled by low-temperature atmospheric-pressure plasma surface modification techniques. |
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