Composite Sorption-Active Materials Based on Zeolite and Ethylene Fluorine Derivatives Part I. Raw Materials, Production Technology and Research Methodology for Prototypes
Theoretical and experimental studies of promising technologies for the preparation of nanostructured composite adsorbents with a matrix structure based on crystalline NaX zeolite is carried out. The initial reagents (zeolite crystalline NaX by Industry Standard 05766575-2009, fluoroplastic powder-42 of grade “F-42V” by GOST 25428-82, acetone of reagent grade qualification by GOST 2603-79 and methyl ethyl ketone solvent as a rheological additive) and an adsorbent-filler-polymer matrix composition in the synthesis of sheet, granular and block composite adsorbents with a matrix structure have been selected. Methods for studying physical and chemical properties of samples of composite sorption-active materials have been developed. Methods of examining morphological and mechanical properties as well as thermal stability of samples are proposed. Methods of determining the isotherm and kinetics of water vapor sorption by materials' samples under static conditions and methods of measuring the dynamic activity of materials by water vapor and the intensity of air drying by the dew point are developed. The porous structure is studied and the bulk density of samples of composite sorption-active materials is determined.