Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications

Because of their great water repellency, Superhydrophobic coatings have a major impact on a variety of industrial applications. The current study’s key originality is the development of low-cost, stable, superhydrophobic, and corrosion-resistant composite coatings. In the present work, polyvinyliden...

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Autores principales:	Adel M. A. Mohamed, Hosam Hasan, Mohamed M. El-Sayed Seleman, Essam Ahmed, Sayed M. Saleh, Rehab M. El-Maghraby
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	superhydrophobicity PVDF Al<sub>2</sub>O<sub>3</sub> nanoparticles composite morphology corrosion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/b505df7cbab34d5da3666c27c7d001ca
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spelling	oai:doaj.org-article:b505df7cbab34d5da3666c27c7d001ca2021-11-11T17:55:38ZPerformance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications10.3390/ma142163581996-1944https://doaj.org/article/b505df7cbab34d5da3666c27c7d001ca2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6358https://doaj.org/toc/1996-1944Because of their great water repellency, Superhydrophobic coatings have a major impact on a variety of industrial applications. The current study’s key originality is the development of low-cost, stable, superhydrophobic, and corrosion-resistant composite coatings. In the present work, polyvinylidene fluoride (PVDF)/Al<sub>2</sub>O<sub>3</sub> composite coatings were produced using the spray technique to investigate the wettability and corrosion behavior of the coated materials for industrial and civil applications. PVDF was mixed with various concentrations of Al<sub>2</sub>O<sub>3</sub> nanoparticles, and the mixture was sprayed onto steel, aluminum, and glass substrates. The wettability and morphology of the coated surfaces were investigated using the sessile droplet method and scanning electron microscopy, respectively. The corrosion resistance of bare substrates was compared to that of those coated with PVDF alone and those coated with PVDF/Al<sub>2</sub>O<sub>3</sub> nanoparticles using Tafel polarization techniques. The force of adhesion between the coat and the substrates was measured in pounds per square inch. A nanoindentation test was also used to measure the hardness of the coating layer. The PVDF/Al<sub>2</sub>O<sub>3</sub> coated steel showed a significantly higher water contact angle and lower contact angle hysteresis, reaching 157 ± 2° and 7 ± 1°, respectively, compared to the coated aluminum and glass substrates. Corrosion test results showed that the superhydrophobic PVDF/Al<sub>2</sub>O<sub>3</sub> coatings had a much higher corrosion protection efficiency for steel and aluminum than that of the PVDF ones. The PVDF/Al<sub>2</sub>O<sub>3</sub> coated substrates showed moderate but still acceptable adhesion between the coating layer and the substrates. Moreover, the PVDF/Al<sub>2</sub>O<sub>3</sub> coatings had much better mechanical properties than the PVDF only coatings. Such type of coating could be a promising candidate for possible industrial and civil applications.Adel M. A. MohamedHosam HasanMohamed M. El-Sayed SelemanEssam AhmedSayed M. SalehRehab M. El-MaghrabyMDPI AGarticlesuperhydrophobicityPVDFAl<sub>2</sub>O<sub>3</sub> nanoparticlescompositemorphologycorrosionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6358, p 6358 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	superhydrophobicity PVDF Al<sub>2</sub>O<sub>3</sub> nanoparticles composite morphology corrosion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	superhydrophobicity PVDF Al<sub>2</sub>O<sub>3</sub> nanoparticles composite morphology corrosion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Adel M. A. Mohamed Hosam Hasan Mohamed M. El-Sayed Seleman Essam Ahmed Sayed M. Saleh Rehab M. El-Maghraby Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications
description	Because of their great water repellency, Superhydrophobic coatings have a major impact on a variety of industrial applications. The current study’s key originality is the development of low-cost, stable, superhydrophobic, and corrosion-resistant composite coatings. In the present work, polyvinylidene fluoride (PVDF)/Al<sub>2</sub>O<sub>3</sub> composite coatings were produced using the spray technique to investigate the wettability and corrosion behavior of the coated materials for industrial and civil applications. PVDF was mixed with various concentrations of Al<sub>2</sub>O<sub>3</sub> nanoparticles, and the mixture was sprayed onto steel, aluminum, and glass substrates. The wettability and morphology of the coated surfaces were investigated using the sessile droplet method and scanning electron microscopy, respectively. The corrosion resistance of bare substrates was compared to that of those coated with PVDF alone and those coated with PVDF/Al<sub>2</sub>O<sub>3</sub> nanoparticles using Tafel polarization techniques. The force of adhesion between the coat and the substrates was measured in pounds per square inch. A nanoindentation test was also used to measure the hardness of the coating layer. The PVDF/Al<sub>2</sub>O<sub>3</sub> coated steel showed a significantly higher water contact angle and lower contact angle hysteresis, reaching 157 ± 2° and 7 ± 1°, respectively, compared to the coated aluminum and glass substrates. Corrosion test results showed that the superhydrophobic PVDF/Al<sub>2</sub>O<sub>3</sub> coatings had a much higher corrosion protection efficiency for steel and aluminum than that of the PVDF ones. The PVDF/Al<sub>2</sub>O<sub>3</sub> coated substrates showed moderate but still acceptable adhesion between the coating layer and the substrates. Moreover, the PVDF/Al<sub>2</sub>O<sub>3</sub> coatings had much better mechanical properties than the PVDF only coatings. Such type of coating could be a promising candidate for possible industrial and civil applications.
format	article
author	Adel M. A. Mohamed Hosam Hasan Mohamed M. El-Sayed Seleman Essam Ahmed Sayed M. Saleh Rehab M. El-Maghraby
author_facet	Adel M. A. Mohamed Hosam Hasan Mohamed M. El-Sayed Seleman Essam Ahmed Sayed M. Saleh Rehab M. El-Maghraby
author_sort	Adel M. A. Mohamed
title	Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications
title_short	Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications
title_full	Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications
title_fullStr	Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications
title_full_unstemmed	Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications
title_sort	performance of sprayed pvdf-al<sub>2</sub>o<sub>3</sub> composite coating for industrial and civil applications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b505df7cbab34d5da3666c27c7d001ca
work_keys_str_mv	AT adelmamohamed performanceofsprayedpvdfalsub2subosub3subcompositecoatingforindustrialandcivilapplications AT hosamhasan performanceofsprayedpvdfalsub2subosub3subcompositecoatingforindustrialandcivilapplications AT mohamedmelsayedseleman performanceofsprayedpvdfalsub2subosub3subcompositecoatingforindustrialandcivilapplications AT essamahmed performanceofsprayedpvdfalsub2subosub3subcompositecoatingforindustrialandcivilapplications AT sayedmsaleh performanceofsprayedpvdfalsub2subosub3subcompositecoatingforindustrialandcivilapplications AT rehabmelmaghraby performanceofsprayedpvdfalsub2subosub3subcompositecoatingforindustrialandcivilapplications
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Performance of Sprayed PVDF-Al<sub>2</sub>O<sub>3</sub> Composite Coating for Industrial and Civil Applications

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