| Abstract [eng] |
The goal of the work is to establish colloidal-chemical regularities of epoxy oligomers emulsification in aqueous solutions, and to develop scientific foundations for regulating the colloidal-chemical properties of emulsions as well as determine new areas of their application. The objects of the study are epoxy oligomers (EO), surfactants, stabilizers, hardeners, pigments, fillers, small functional additives, composite materials. The research methods are: tensiometric research method, method for determining the electrokinetic potential, IR spectroscopy, X-ray phase and thermogravimetric analyzes, methods for determining the type of emulsion and its stability, rheological studies and research methods for compositions and coatings based on epoxy oligomers aqueous dispersions. The influence of emulsification methods on the aggregate stability of aqueous epoxy dispersions has been investigated. The regularities of the influence of surfactants (emulsifiers) chemical nature on the type and colloidal-chemical properties of epoxy oligomers aqueous dispersions have been established. The colloidal-chemical properties of epoxy oligomers aqueous dispersions of various chemical structures obtained by emulsification have been investigated. The regularities of the processes of chemical curing for epoxy oligomers aqueous dispersions in order to obtain films and coatings with desired properties have been studied. A search was carried out for new areas of practical application of the obtained epoxy dispersions with the aim of introducing them into production processes. Injection and water-repelling compositions have been developed for waterproofing bulkheads of ore mines, their properties and the effect of saline solutions composition and concentration on the properties of waterproofing coatings have been studied. The compositions for anti-slip lanes at stopping points as well as pedestrian crossings have been developed. A water-dispersion epoxy varnish has been developed, its colloidal-chemical and operational properties, either as a part of a complex decorative-protective coating of metal products have been investigated. |
