Enhanced Corrosion Resistance and Surface Wettability of PVDF/ZnO and PVDF/TiO2 Composite Coatings: A Comparative Study-Reference-Cited by-同舟云学术

Enhanced Corrosion Resistance and Surface Wettability of PVDF/ZnO and PVDF/TiO2 Composite Coatings: A Comparative Study

Published:2023-10-04 Issue:10 Volume:13 Page:1729
ISSN:2079-6412
Container-title:Coatings
language:en
Short-container-title:Coatings

Author:

Mohamed Adel¹,Alateyah Abdulrahman²^ORCID,Hasan Hosam¹,Matli Penchal³,El-Sayed Seleman Mohamed¹^ORCID,Ahmed Essam¹^ORCID,El-Garaihy Waleed²⁴^ORCID,Golden Teresa⁵

Affiliation:

1. Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43512, Egypt

2. Department of Mechanical Engineering, College of Engineering, Qassim University, Unaizah 56452, Saudi Arabia

3. Department of Physics, Sri Krishnadevaraya University, Anantapur 515003, India

4. Mechanical Engineering Department, Faculty of Engineering, Suez Canal University, Ismailia 41522, Egypt

5. Department of Chemistry, University of North Texas, 1155 Union Circle #305070, Denton, TX 76203, USA

Abstract

This study aims to enhance the practical performance of PVDF/ZnO and PVDF/TiO2 composite coatings known for their distinctive properties. The coatings, applied through spray coating with PVDF and ZnO or TiO2 nanoparticles on glass, steel, and aluminum substrates, underwent a comprehensive evaluation. Surface wetting properties and morphology were respectively evaluated using a technique involving liquid droplets and an imaging method using high-energy electrons. Potentiodynamic polarization was used to compare corrosion resistance between coated and bare substrates. Nanoindentation was used to assess coating hardness, and bonding strength was subsequently quantified. The results revealed that PVDF/ZnO composite coatings had higher water contact angles (161 ± 5° to 138 ± 2°) and lower contact angle hysteresis (7 ± 2° to 2 ± 1°) compared to PVDF/TiO2 and PVDF coatings. Moreover, corrosion tests demonstrated superior protection for steel and aluminum surfaces coated with superhydrophobic PVDF/ZnO. Nanoindentation indicated enhanced mechanical properties with TiO2 nanoparticles, with adhesion results favoring TiO2 over ZnO nanoparticles.

Publisher

MDPI AG

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces

Link

https://www.mdpi.com/2079-6412/13/10/1729/pdf

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