N. N. Pavlov

Prospects for functionalizing the properties of synthetic fibers with the use of complex salts of metals

It is shown that salts of metals can be used to produce different effects in modifying the properties of synthetic fibers. The use of such salts improves the dyeability of polyester and polyacrylonitrile fibers, increases their affinity for acid dyes, alters the electrokinetic properties of their surface, and makes it possible to use complexes of metal cations to give the fibers biocidal properties.

Effect of salts of metals on water absorption by synthetic fibers and materials based on them

It is shown that complex salts of metals can be used to increase water absorption by synthetic fibers and materials. The hygroscopicity of fibers can be more than doubled through the use of salts of calcium and chromium.

Chemical Modification of Synthetic Fibres with Complex Metal Salts with Organic Ligands

The possibility of deliberately altering the biocidal and capillary properties of a fabric by combined treatment with solutions of metal salts and low-molecular-weight organic substances with special properties — dyeing, biocidal, etc., is demonstrated.

Complex Metal Cations as Modifiers of the Properties of Polyester Fibres

Treatment of Lavsan fabric with a solution of chromium(III) benzoate complexes causes the highest rate of fixation of acid dye by the fabric and the highest equilibrium sorption, 2.5 times higher than this index for untreated fabric. The fabric also acquires higher capillarity. A simple method is proposed for production of chromium(III) benzoate and salicylate complexes and their composition is investigated spectrophotometrically as a function of the ratio of chromium ions and acid molecules in the solution.

Quantitative Characteristics of Binding of Metal Ions by Polyamide Fibres

Based on the data on chemical binding of the salts of ten metals from aqueous solutions by polycaproamide fibres, the metal cations were divided into four groups as a function of the concentration of the salt solutions and their chemisorption power. Copper cations are most prone to chemisorption by PCA fibres and their chemisorption index is one order of magnitude higher than the index for cations of the other metals.