2026 (2) 3
https://doi.org/10.15407/polymerj.48.02.072
SURFACE DISPERSION OF STEEL 45 AND BRASS L59 IN AQUEOUS BINARY SOLUTIONS OF PEG–6000 – SODIUM DODECYL SULFATE IN THE PRESENCE OF ABRASIVES OF SILICON CARBIDE, SILICON DIOXIDE AND ELECTROCORUNDUM
Petro LOGVYNENKO (ORCID: 0000-0003-0721-8128)
Larisa KARSIM (ORCID: 0009-0003-7707-1659)
Galyna GLIEVA (ORCID: 0000-0002-2916-0257)
Tetyana DMYTRIEVA (ORCID: 0000-0002-3526-8395)
Halyna NEVMERZHYTSKA (ORCID: 0009-0002-8973-4790)
Sergii RIABOV (ORCID: 0000-0003-2996-3794)
Institute of Macromolecular Chemistry of the NAS of Ukraine, 48 Kharkivske Highway, Kyiv 02155, Ukraine
*Corresponding author.
E-mail: petmol@ukr.net
Polimernyi Zhurnal, 2026, 48, no. 2: 72-79
Section: Structure and properties
Language: Ukrainian.
Received 09.02.2026
Accepted 17.05.2026
Published 24.06.2026
Abstract
It is known that today the world volume of abrasive processing, including finishing and processing of metals, alloys, and mineral composites, reaches 75-80% of the world volume of mechanical processing. Considering that the effectiveness of surface dispersion is determined by the wetting and penetrating properties of cutting fluids (CFs) and the cutting properties of abrasive materials, studies were conducted on the influence of surfactants – sodium dodecyl sulfate (DDSNa), polyethylene glycol (PEG), and intermolecular complexes (IMCs) of PEG–DDSNa on the dispersing properties of aqueous binary solutions (ABS) of PEG–DDSNa. The synergism (S) of the dispersing action of small DDSNa additives in aqueous PEG solutions was established. Its value depends on the surfactant concentration, the stereochemistry of the abrasive component’s surface, and the alloy’s nature. The presence of –Sid⁺–Сd−≡ groups on the surface of silicon carbide (SіC) enables interaction with the IMC PEG–DDSNa and the implementation of the Rehbinder effect. The presence of -Al3⁺ cations on the surface of electrocorundum excludes interaction with the IMC PEG–DDSNa, but reveals their ability to interact with the IMC PEG–DDSNa in the micellar concentration range of 0.25-0.75 wt.%, which allows us to propose a micellar variant of the synergism of the dispersing action of the components in the micro cutting zone. To implement effective surface treatment, a triad has been defined: alloy-abrasive-CFs, which provides a combination of high dispersing properties and surface quality.
Keywords: dispersion, metal, polyelectrolyte, surfactant, micelles, viscosity, suspension, electrical conductivity.
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