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Abstract <p>The paper presents the results of calculating the equilibrium contact angles of wetting of oligomeric binders of different viscosity on the surface of an analogue of lunar soil. All calculations were performed using the COMSOL Multiphysics program. All calculations were performed separately for the following fractions: SiO<sub>2</sub>, CaO, and Al<sub>2</sub>O<sub>3</sub>. As a result of the calculations, it was found that with an increase in the viscosity of the binder from 1 to 2 Pa s, the values of the contact angles of wetting increase: for SiO<sub>2</sub> particles, by 6.9%, and for CaO and Al<sub>2</sub>O<sub>3</sub> particles, by 7.3 and 10%, respectively. VI-7 was used as an analogue of the lunar soil, for which its fractional composition and bulk density were determined.</p>

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Study of the Kinetics of the Process of Spreading Oligomeric Binders over the Surface of a Lunar Soil Analogue

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • T. Ch. Pkhon,
  • M. V. Khudorozhko,
  • G. V. Malysheva

摘要

Abstract

The paper presents the results of calculating the equilibrium contact angles of wetting of oligomeric binders of different viscosity on the surface of an analogue of lunar soil. All calculations were performed using the COMSOL Multiphysics program. All calculations were performed separately for the following fractions: SiO2, CaO, and Al2O3. As a result of the calculations, it was found that with an increase in the viscosity of the binder from 1 to 2 Pa s, the values of the contact angles of wetting increase: for SiO2 particles, by 6.9%, and for CaO and Al2O3 particles, by 7.3 and 10%, respectively. VI-7 was used as an analogue of the lunar soil, for which its fractional composition and bulk density were determined.