Features of Synthesis of Anion Exchange Matrix “Polikon A” with Oxidated Ultrafine Additives on Lavsan Textile Bases

Abstract

A comparative analysis of the studies on the influence of the textile structure of reinforcing fabric on the physicomechanical and sorption characteristics of anion-exchange systems as a component of the "Polikon" mosaic materials is presented in this study. This study shows the promise of using polyester fibers as a reinforcing fiber base for the production of Polikon A membrane materials. The morphology, moisture capacity, static exchange capacity, and physical and mechanical characteristics of anion-exchange membrane systems were investigated. A modification of Polikon A anion-exchange matrices on lavsan fabric by oxidized ultrafine particles of silicon, iron and nickel is proposed.

Anion-Exchange Membrane “Polikon A” Based on Polyester Fiber Fabric (Functionalized by Low-Temperature High-Frequency Plasma) with Oxidized Metal Nanoparticles

“…The chemical composition of Polikon A on the fabric from the polyester fiber was studied by the energy dispersive method (Figures 6-9). It was shown that the elemental composition was dominated by carbon (in weight%): 49.96 ± 0.37; nitrogen 17.17 Suffusion is a destructive process that occurs during the operation of membranes, expressed in the leeching of unrelated or loosely bound particles from the material into the solution [34]. To avoid suffusion, as well as to give the anion matrix "Polikon A" a more homogeneous cross-linked structure, it was proposed to introduce the oxidized ultrafine modifying additives of Fe, Ni, and Si oxides at the synthesis stage [34].…”

“…It was shown that the elemental composition was dominated by carbon (in weight%): 49.96 ± 0.37; nitrogen 17.17 Suffusion is a destructive process that occurs during the operation of membranes, expressed in the leeching of unrelated or loosely bound particles from the material into the solution [34]. To avoid suffusion, as well as to give the anion matrix "Polikon A" a more homogeneous cross-linked structure, it was proposed to introduce the oxidized ultrafine modifying additives of Fe, Ni, and Si oxides at the synthesis stage [34].…”

“…We fabricated laboratory pilot-scale batches of membranes “Polikon A” (letter “A” denotes an AEM, and the term “Polikon” corresponds to the original technological method of membrane production fabricated by the authors [ 34 , 35 , 36 , 37 , 38 , 39 ]). Membranes were formed using polyester fiber-based fabrics treated and not treated with plasma.…”

“…The technological process consisted of the pretreatment of the raw materials, the preparation of monomerization composites (on the basis of polyethylene polyamines and epichlorohydrins), and their application on a fibrous base; then, the synthesis and curing process was carried out, thereby forming a spatial network of polymer matrices on the surface and in the volume of the system [ 34 , 35 ].…”

“…Comprehensive studies of the influence of the method of manufacturing a fibrous base on the properties of ion-exchange membranes have been carried out by the authors of articles [ 34 , 35 , 36 , 37 , 38 , 39 ]. In these studies, polyester fibers pretreated with low-temperature high-frequency plasma were proposed as the fibrous substrate of the membranes.…”