Epoxy Coatings Doped with (3-Aminopropyl)triethoxysilane-Modified Silica Nanoparticles for Anti-Corrosion Protection of Zinc

Author:

Ovari Tamara-Rita1,Toth Timea2,Katona Gabriel2ORCID,Szabó Gabriella Stefánia2ORCID,Muresan Liana Maria1

Affiliation:

1. Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany J. Street, 400028 Cluj-Napoca, Romania

2. Department of Chemistry and Chemical Engineering of the Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany J. Street, 400028 Cluj-Napoca, Romania

Abstract

Epoxy (EP) coatings containing silica (SiO2) and (3-Aminopropyl)triethoxysilane-modified silica (SiO2-APTES) nanoparticles were prepared via the dip-coating technique on a zinc substrate. A detailed study was performed regarding their incorporation into the matrix, followed by the investigation of the newly obtained organic–inorganic hybrid coatings’ anti-corrosive properties. The two methods of embedding the nanoparticles were (I) modification of the silica nanoparticles with APTES followed by their introduction into the epoxy resin, and (II) functionalization of the silica nanoparticles in the epoxy gel before the addition of the hardener. It was observed that through the second method, the coating was homogeneous, with no sign of agglomerates. The nanoparticles were subjected to morpho-structural and physical–chemical analysis using Fourier-Transform Infrared Spectroscopy and Transmission Electron Microscopy, while the coatings were examined through Scanning Electron Microscopy and Energy-Dispersive X-Ray Spectroscopy, contact angle measurements and adhesion tests. The anti-corrosive performance of epoxy-coated zinc was analyzed using electrochemical impedance spectroscopy and polarization curves to investigate the impact of silanized SiO2 nanoparticle incorporation. Based on long-term corrosion testing, the epoxy-SiO2-APTES composite coatings showed a higher corrosion resistance than the undoped epoxy layer.

Publisher

MDPI AG

Subject

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

Reference45 articles.

1. Makhlouf, A.S.H. (2014). Handbook of Smart Coatings for Materials Protection, Elsevier.

2. Tiwari, A., Hihara, L., and Rawlins, J. (2014). Intelligent Coatings for Corrosion Control, Butterworth-Heinemann.

3. Muresan, L.M. (2023). Nanocomposite Coatings for Anti-Corrosion Properties of Metallic Substrates. Materials, 16.

4. The potential of nanocompo-site-based coatings for corrosion protection of metals: A Review;Randis;J. Mol. Liq.,2023

5. Study on corrosion electrochemical behavior of several different coating systems by EIS;Liu;Prog. Org. Coat.,2009

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