Advanced superhydrophobic electroactive fluorinated polyimide and its application in anticorrosion coating |
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| Authors: | Tsao-Cheng Huang Lu-Chen Yeh Guan-Hui Lai Bi-Sheng Huang Ta-I Yang Sheng-Chieh Hsu |
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| Institution: | 1. Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, Taiwan;2. Department of Chemistry, Chung Yuan Christian University, Chung Li, Taiwan;3. Department of Chemical Engineering, Chung Yuan Christian University, Chung Li, Taiwan;4. Department of Chemistry, Chung Yuan Christian University, Chung Li, Taiwan |
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| Abstract: | A novel superhydrophobicelectroactive fluorinated polyimide (HEFPI) was first synthesized from aniline trimer and 4,4′-(Hexafluoroisopropylidene) diphthalic anhydride. The HEFPI could be fabricated as superhydrophobicfilm by replicated the surface of the Xanthosomasagittifolium leaves. The water contact angle of HEFPI film reaches as high as 157 ° and the superhydrophobic property of HEFPI could coat on cold-rolled steel (CRS) to prevent the metal corrosion. Electroactivity of EFPI was evaluated by performing electrochemical cyclic voltammetry study. Besides, redox catalytic capabilities of aniline trimer units existed in HEFPI main chain may induce the formation of passive metal oxide layers on the CRS electrode. The synergistic effects (hydrophobic property and passive metal oxide layers) make the HEFPI coating has great potential for advanced anticorrosion material. |
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| Keywords: | Anticorrosion coating electroactive polymer superhydrophobic |
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