Authors: L.G. Sivakova, O.V. Kasyanova

Title of the article: Wetting of the solid residue of used rubber products pyrolysis by surfactants solutions

Year: 2018, Issue: 6, Pages: 70-75

Branch of knowledge: Chemical technology

Index UDK: 678:67.08/54.384.2/544.722.3

DOI: 10.26730/1999-4125-2018-6-70-75

Abstract: Currently, research is actively conducted aimed at expanding the areas of application of the solid residue of pyrolysis of obsolete rubber products. To expand the areas of application of the solid residue of obsolete rubber products pyrolysis, it is necessary to study the physical and chemical properties of the surface. The object of the study was the solid residue of pyrolysis obtained at the «Pirotex» facility of company «Kuznetskecology +» (city Kaltan) at a pyrolysis temperature of 350+70°C. The paper presents studies of the adhesion properties of the surface of the solid pyrolysis residue: the adhesion performance, the equilibrium wetting angle, surface tension. The possibility of their change due to the adsorption of surface-active substances is shown. As the surfactant concentration increases, the wetting angle decreases, wetting increases and reaches full wetting. With the growth of surfactant concentration, the surface tension decreases linearly. Introduction of surfactants in aqueous solutions is changing the hydrophobic surface into hydrophilic one, and the surface begins to get wetted. It is found that the addition of surfactants in the amount of no more than 0, 1 mass.% leads to wetting of the TOP with aqueous solutions. This will allow us to use the TOP in treatment of wastewater containing pollutants of different nature.

Key words: wetting solid residue pyrolysis rubber products

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