EFFECTS OF THE EXPERIMENTAL CONDITIONS ON THE RECOVERY OF THE FUNCTION OF SIZE DISTRIBUTION OF PORES

The knowledge of information on the structure of nanoporous materials is key for understanding heat and mass transfer and catalysis processes and also for predicting the behavior of nanoporous materials for various applications. Assessing the infl uence of various factors on the process of fi lling a nanoporous material with a nonwetting liquid is an important moment for the development of domestic porometry and techniques for processing experimental results in recovering the function of size distribution of pores. This paper presents the results of investigations into the eff ects of various conditions of the experiment on the fi lling of hydrophobized (water-repellent) Fluka 100 C₈ silica gel with a nonwetting liquid (distilled water, glycerin, and ethylene glycol). Based on experimental data, functions of size distribution of pores have been determined. It is shown that functions of distribution coincide within the error for all experiments in the case of using distilled water as a nonwetting liquid.
The knowledge of information on the structure of nanoporous materials is key for understanding heat and mass transfer and catalysis processes and also for predicting the behavior of nanoporous materials for various applications. Assessing the infl uence of various factors on the process of fi lling a nanoporous material with a nonwetting liquid is an important moment for the development of domestic porometry and techniques for processing experimental results in recovering the function of size distribution of pores. This paper presents the results of investigations into the eff ects of various conditions of the experiment on the fi lling of hydrophobized (water-repellent) Fluka 100 C₈ silica gel with a nonwetting liquid (distilled water, glycerin, and ethylene glycol). Based on experimental data, functions of size distribution of pores have been determined. It is shown that functions of distribution coincide within the error for all experiments in the case of using distilled water as a nonwetting liquid.
Author:  V. D. Asafova, S. A. Kulakov, S. A. Bortnikova, A. A. Belogorlov
Keywords:  nanoporous material, nonwetting liquid, liquid porometry (mercury porosimetry), function of size distribution of pores
Page:  1503