Study on the influence of the additives for the thermophysical properties of paraffin-containing dispersed systems

Abstract

ABSTRACT: Introduction. Particular interest for research has dispersed systems. Dispersed systems are multiphase systems, consisting of a quantity of smallest particles, evenly distributed in the liquid, gaseous or solid medium. Such systems are the majority of the real bodies around us: soil, bodies of plant and animal life, clouds and fogs, many industrial products, such as building materials, metals, polymers, paper, leather, fabrics and foodstuffs. Disperse systems have many unusual physical properties, which require separate study and are of great importance in practice. Methods and materials. This article explores the influence ion-forming additives on the thermophysical properties of paraffin-containing disperse systems. The widespread use of ion-forming additives is associated with a number of positive features. Ion-forming additives is a new type of modifiers of crystalline solid phase and liquid crystals, significantly affect the process of micelle formation of paraffin in dispersed paraffin-containing environment. Therefore, studies on their effect on the processes of nucleation and growth of crystals are of particular interest. During the research, samples were prepared with various ion-forming additives and obtained temperature dependences of dielectric permittivity for dispersed systems petrolatum – methyl ethyl ketone – water solution of NaCl and KCl. Polynomial models are selected as the model type, which are widely used in the processing of various data, including experimental, and are also an effective tool for solving a wide range of scientific and technical problems. Results and discussion. It has been established that an increase in the degree of crystallinity of the solid phase with the introduction of additives is associated with a decrease in surface tension and increase in secondary nucleation. Resulting universal regression dependence of permeability allows us to describe the experimental results with the reliability of the approximation 0.99. Conclusion. The analysis of the obtained results shows reliability of the considered regression models and their applicability in practice, as well as in further studies of the dynamics of the process in disperse systems and the process of nucleation and growth of crystals

Keywords

• dispersed systems
• the dielectric constant
• ion-forming additives
• coefficient of determination
• polynomial model
• x-ray diffraction analysis
• degree of crystallinity
• response function