The current state of development of the economy of the Russian Federation causes the appearance of a number of urgent problems related to improving production and increasing the level of environmentally safe products, in particular paints and varnishes combined with high performance properties of coatings based on them. In this regard, the advantages and disadvantages of aqueous dispersions based on polymers in the presence of various modifiers that are widely used in the paint and varnish industry were analyzed. This article discusses the problem of stability conditions for mixed materials of epoxy-acrylic type and the establishment of a relationship between the composition of the film-forming base and the performance properties of coatings. The purpose of this study is to create new water-dispersion paints and varnishes based on mixed epoxy-acrylic film-formers for coatings with increased hardness, wear resistance, elasticity and adhesion. The analysis of the main types of water-based film-forming agents is carried out. It is proposed to use mixed systems of film-formers based on epoxy-acrylic dispersions. It was established by standard methods that by combining dispersions of acrylic and epoxy types it is possible to achieve a significant increase in the wear resistance of the compositions (almost 2 times) in comparison with the wear resistance of materials based on acrylic. The adhesion of coatings to substrates of various nature (except for brick) increases with an increase in the content of the epoxy component. In terms of performance, acrylic epoxy can be more effective than acrylic and can be used in humid environments. An increase in the performance properties of these materials in comparison with acrylate systems has been confirmed. It should be noted that an additional task in the development of any building materials is affordability. It is known that not all dispersions are cheap, for example, in the presence of silicone polymers, dispersions are expensive, so they are used only when necessary. To improve operational properties and reduce the cost of protective coatings, we proposed using composite materials, which included styrene-acrylic and epoxy aqueous dispersions. In the future, it is planned to create “smart” materials whose properties will depend on functional fillers.

In the age of information technology and the age of polymers, there are more and more tasks in scientific researches on chemistry and chemical technology. Such a phenomenon is explained by the fact that humanity develops very quickly. Consequently, the needs are enhancing dramatically, and therefore everyone objectively understands that natural resources decrease annually. The time will come when nature will not be enough for human existence. To plant a tree is not to build a house, but the construction of a wooden house requires more than one tree that grows over the years. In this paper, the authors try to prolong the life of various products and materials made of cheap wood species by using waste from production, which may partially ensure the preservation of nature. The article presents the results on the use of oligomer from petrochemical waste for the protective treatment of wood materials and high-density fiberboard (HDF). The dosage of secondary expanded polystyrene to oligomer from polybutadiene by-products varies from 10 to 40 %. The obtained samples of fiberboard, birch, linden and aspen are examined for resistance to water and moisture. The results indicate that the samples have high strength properties and resistance to water and moisture. Thus, the integrated use of waste and by-products allows them to be disposed and to be used for protective treatment of wood products, which contributes to improving the formability and service life of products.

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A technology for the modifying treatment of the wood fiber boards (WFB) by a solution of a petropolymer resin obtained from C9-fraction is considered. The technological process of modification of WFB included a number of operations on samples preparation, impregnation in a modifying composition and thermal hardening of the prepared composites. The process of the WFB modification was studied applying an experimental planning method based on a scheme of the greek-latin square of the forth order.