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THE INFLUENCE OF DIFFERENT PREPARATIONS OF NANOCOMPOSITE COATING ON PROTECTIVE PROPERTIES

izvorni znanstveni rad

izvorni znanstveni rad

THE INFLUENCE OF DIFFERENT PREPARATIONS OF NANOCOMPOSITE COATING ON PROTECTIVE PROPERTIES

Vrsta prilog sa skupa (u zborniku)
Tip izvorni znanstveni rad
Godina 2023
Nadređena publikacija International Conference MATRIB 2023- Materials, Tribology & Recycling - BOOK OF ABSTRACTS
Stranice str. 347-357
Status objavljeno

Sažetak

Incorporating an anticorrosive component, such as nanoparticles, into organic coatings presents a challenged for researchers because nanoparticles tend to form agglomerates. The aim of this work is to improve and compare two methods of mixing nanoparticles into epoxy paints. The mixing of 1% aluminum nanoparticles was carried out by a mechanical and ultrasonic process. The surface of the nanocomposite coating was analyzed using a scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS). The corrosion behavior of the epoxy coating with and without nanoparticles was examined using electrochemical impedance spectroscopy (EIS) in a 3.5% NaCl solution. Electrochemical testing of the coating was completed with the use of a scanning electrochemical microscope (SECM). Electrochemical surface analysis of the coating enables a topography of monitoring the degradation of the coating. The results show that the nanocomposite with 1% aluminium nanoparticles prepared using an ultrasonic homogenizer has better anticorrosion properties than the nanocomposite prepared by mechanical stirring.

Ključne riječi

corrosion ; epoxy coating ; nanoparticles ; electrochemical tests