Abstract
We studied the anti-corrosion of carbonyl iron (CI) and fluorinated carbonyl iron-hydrophobic composites (CI@PFOTES) under the application of a neutral salt spray. The results show that various corrosion products (Fe2O3, FeOOH, Fe3O4 et.al) appeared after subjecting the samples to 192 h of corrosion and reveals the corrosion process: Fe → Fe2 + → Fe3 +. In contrast, CI@PFOTES composites possesses minor corrosion characteristics due to hydrophobic of PFOTES coating. But, the protective layer also existed partial failure due to hydrolysis aging effect. For electromagnetic properties, the downward trend of CI is more severe than CI@PFOTES due to forming various weak magnetic phase oxidation products.
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