Preview

Russian Coatings Journal

Advanced search
Open Access Open Access  Restricted Access Subscription or Fee Access
No 10 (2023)
View or download the full issue PDF (Russian)

NEWS

 
56-58 38

EVENTS AND FACTS

PROCESSING OF POLYMERS AND COMPOSITES

18-23 37
Abstract

The effect of copolymers of methyl methacrylate and butyl methacrylate Degalan LP 65/12, Dianal MB 7497 and Dacril SP 652 as an acrylic film on the properties of heat-resistant lacquer coatings based on polymethylphenylsiloxane resin was investigated. The density, viscosity, molecular weight distribution of varnish compositions, as well as the mechanical properties of coatings based on them have been identified: tensile strength, elongation, hardness and elastic modulus. The ratios of acrylic film-forming agents and polymethylphenylsiloxane resin were established at which coatings with optimal properties were obtained.

37-39 46
Abstract

The lab researches have completed for usage of powder coating waste as a plasticizer in concrete mixtures and as pigments for volumetric coloring of silicate bricks. The test results discovered the plasticizing activity of the powder coating waste additive in the concrete mixture. Also detected the low efficiency of using powder coating waste as pigment materials in bulk coloring of silicate bricks.

40-43 33
Abstract

The article considers the production of paint and varnish materials based on water-soluble polyesters. Unsaturated and saturated water-soluble polyesters were obtained by the polycondensation reaction in the melt of diols, dicarboxylic acids or their anhydrites and the sodium salt propane hydrochlorohydrin sulfonic acid. The structure of the obtained polymers is confirmed by the data of elemental analysis and IR spectroscopy. Paint coatings with good physical and mechanical properties were obtained on the basis of unsaturated polyesters.

EXPERTS' OPINION

INFORMATION TECHNOLOGY

27-36 38
Abstract

The presented work examines in detail the use of the developed expert system for selecting cost-effective technologies and production equipment in the engineering and reengineering of enterprises in the paint and varnish industry. Methods for reducing economic and energy costs when carrying out complex engineering of small-tonnage chemical-technological systems for paint and varnish production are presented. The use of reactors with induction heating is considered, with the possibility of reducing time and operating costs.

STANDARDIZATION AND METROLOGY

44-52 54
Abstract

The international standard ISO 22899-1, which makes it possible to determine the fire resistance of passive protection materials in a jet fire is considered. Test requires a gas flow rate in the nozzle of 0,3 kg/s at a pressure of 2,3 bar been established. The temperature of the resulting flame can reach 1400 °C with the formation of a fireball. The types of tested fire-fighting materials facing materials, intumescent coatings, components and structures are indicated. The types of tests by this method: external and internal configuration of the installation are considered.

YOUR NAVIGATOR



ISSN 0130-9013 (Print)