Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance
Understanding the corrosion inhibition behavior of super-amphiphobic coating is important to ensure practicability in the real application. 2 layers system of super-amphiphobic coating was successfully developed using functionalized nano-Al<sub>2</sub>O<sub>3</sub> incorporat...
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doaj-5967d6275bed4aa289207b64f0c5d0a72020-11-25T03:24:14ZengMDPI AGCoatings2079-64122020-04-011038738710.3390/coatings10040387Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion ResistanceNadiah Ghazali0Wan Jeffrey Basirun1Azmi Mohammed Nor2Mohd Rafie Johan3Mechanical Engineering Department, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaChemistry Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, MalaysiaPetronas Research Sdn. Bhd. Jalan Ayer Itam, Kawasan Institusi Bangi, 43000 Bandar Baru Bangi, Selangor, MalaysiaNanotechnology and Catalysis Research Center (NANOCAT), University of Malaya, 50603 Kuala Lumpur, MalaysiaUnderstanding the corrosion inhibition behavior of super-amphiphobic coating is important to ensure practicability in the real application. 2 layers system of super-amphiphobic coating was successfully developed using functionalized nano-Al<sub>2</sub>O<sub>3</sub> incorporated in polyvinylidene fluoride (PVDF). This study investigates the effect of different amount of functionalizing agent on the coating’s repellency and its relationship toward the corrosion inhibition behavior. We found that a higher amount of fluoroalkylsilane (FAS) led to a decreased in repellency of both water and oil. Electrochemical impedance spectroscopy (EIS) analysis suggests that the synergetic effect between super-hydrophobicity, longer diffusion path, and barrier effect; enhanced the corrosion resistance. Although the coatings demonstrate similar behavior, the most superhydrophobic/amphiphobic coating C1 offers the highest corrosion protection.https://www.mdpi.com/2079-6412/10/4/387superhydrophobicamphiphobicfluoroalkylsilanealuminacorrosion protectionEIS |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nadiah Ghazali Wan Jeffrey Basirun Azmi Mohammed Nor Mohd Rafie Johan |
spellingShingle |
Nadiah Ghazali Wan Jeffrey Basirun Azmi Mohammed Nor Mohd Rafie Johan Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance Coatings superhydrophobic amphiphobic fluoroalkylsilane alumina corrosion protection EIS |
author_facet |
Nadiah Ghazali Wan Jeffrey Basirun Azmi Mohammed Nor Mohd Rafie Johan |
author_sort |
Nadiah Ghazali |
title |
Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance |
title_short |
Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance |
title_full |
Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance |
title_fullStr |
Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance |
title_full_unstemmed |
Super-Amphiphobic Coating System Incorporating Functionalized Nano-Al<sub>2</sub>O<sub>3</sub> in Polyvinylidene Fluoride (PVDF) with Enhanced Corrosion Resistance |
title_sort |
super-amphiphobic coating system incorporating functionalized nano-al<sub>2</sub>o<sub>3</sub> in polyvinylidene fluoride (pvdf) with enhanced corrosion resistance |
publisher |
MDPI AG |
series |
Coatings |
issn |
2079-6412 |
publishDate |
2020-04-01 |
description |
Understanding the corrosion inhibition behavior of super-amphiphobic coating is important to ensure practicability in the real application. 2 layers system of super-amphiphobic coating was successfully developed using functionalized nano-Al<sub>2</sub>O<sub>3</sub> incorporated in polyvinylidene fluoride (PVDF). This study investigates the effect of different amount of functionalizing agent on the coating’s repellency and its relationship toward the corrosion inhibition behavior. We found that a higher amount of fluoroalkylsilane (FAS) led to a decreased in repellency of both water and oil. Electrochemical impedance spectroscopy (EIS) analysis suggests that the synergetic effect between super-hydrophobicity, longer diffusion path, and barrier effect; enhanced the corrosion resistance. Although the coatings demonstrate similar behavior, the most superhydrophobic/amphiphobic coating C1 offers the highest corrosion protection. |
topic |
superhydrophobic amphiphobic fluoroalkylsilane alumina corrosion protection EIS |
url |
https://www.mdpi.com/2079-6412/10/4/387 |
work_keys_str_mv |
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