PHYSICS

Synthesis and properties of protective compositional sol-gel coatings containing graphene

V. V. Vaskevich^a, D. L. Kovalenko^a, T. A. Nguyen^b, V. E. Gaishun^a, Thien Vuong Nguyen<sup>b

a</sup> Francisk Skorina Gomel State University
^b Institute for Tropical Technology of Vietnam Academy of Science and Technology, Hanoi

Abstract: The optimal conditions for synthesis are determined. The technology for obtaining composite protective sol-gel coatings that contain finely dispersed powders of titanium oxide (carbon) and nanosized graphene powder is described. The results of analyzing the thickness, adhesion, and surface morphology of the resulting coatings are presented. The influence of the composition and concentration of graphene on the hardness, impact resistance, abrasion resistance and hydrophobic properties is established. The moisture resistance, resistance to salt fog and resistance to temperature fluctuations of the resulting sol-gel coatings are investigated.

Keywords: sol-gel, film-forming solution, compositional coatings, thickness, adhesion, mechanical strength, resistance to thermal cycling.

UDC: 539.23:67.017

Received: 09.09.2024

DOI: 10.54341/20778708_2024_4_61_13