«Equipment and technologies for oil and gas complex»

Introduction of carbon modifiers into the composition of paint and varnish coatings to increase resistance to various types of wetting

UDC: 667.634:621.64
DOI: -

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia

Keywords: corrosion protection, carbon additives for paint-and-lacquer coatings (PLC), graphene, diamond graphite powder, thermally expanded graphite

Annotation:

Corrosion is the main cause of failure of oil and gas and refinery equipment. To ensure Equipment trouble-free operation in corrosive environments requires preventing or minimizing this process, for example, it can be done by reducing metal contact with an aggressive environment due to protective coatings. The main type of protective coatings of the barrier mechanism is paint-and-lacquer coatings (PLC), which have a number of advantages, but at the same time, disadvantages: high permeability and low adhesion to the surface. To increase the adhesion value, surface preparation is used, which consists of a number of processes: sand blasting/shot blasting treatment, dust removal, degreasing with subsequent application of a primer, and to reduce permeability, the PLC is applied in several layers. These methods significantly increase the economic and time costs for protecting equipment from corrosion. The authors of the article studied the effect of adding carbon modifiers into the PLC composition in order to increase the adhesion resistance and reduce the PLC permeability. The following carbon additives were selected: graphene (G), diamond-graphite powder (DGP), and thermally expanded graphite (TEG).

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