Coatings for wood

4, 46 NEWS

10 Coatings for wood: growth is quite modest

14 UV-quantum technologies of formation protective, decorative and functional polymer coatings.Part II. Pigments, fillers, additives and compositions for UV-curable coatings — Doctor of Tech. Sci. Kondrashov E. K., Kozlova A. A.
This article analyzes publications concerning the influence of the properties of pigments, fillers and special additives on the anticorrosive and functional properties of UV-polymerized coatings. The effect of the size and shape of pigment particles on the rate of UV-polymerization, as well as the effect of dispersants, adhesion promoters, UV-absorbers and surfactants on the properties of the coatings obtained, is shown. Typical formulations of UV-polymerized compositions are given. The possibility of obtaining oxide nanoparticles from europium compounds directly into film-forming agents during UV-polymerization is shown.

Keywords: UV-polymerization, pigments, dispersants, adhesion promoters, UV-absorbers.

21 Wood coatings for the furniture industry

25 Colloidal-chemical properties of emulsifiers by the IVP trademark for reverse emulsions — Candidate of chem. Sci. Aristov B. G., Candidate of chem. Sci. Konichev M. A., Candidate of chem. Sci. Smrchek V. A., Candidate of chem. Sci. Yarovaya O. V.
The study of colloidal-chemical properties of emulsifiers by the IVP trademark for reverse emulsions, which are by chemical nature a solution in an organic solvent of derivatives of triglycerides of fatty acids of tallow or sunflower oil and ethanolamines. The acid and hydroxyl numbers, as well as the hydrophilic-lipophilic balance of the synthesized emulsifiers were determined. Their surface activity, micelle formation and emulsifying ability were used. It is shown that the studied diphilic compounds belong to the class of colloidal surfactants with high surface activity and the ability to micelle formation. For all samples, the experimentally determined surface tension isotherms and critical concentration of micelle formation (ССМ) values practically coincided, although the samples have different chemical structures. This indicates both their adsorption on the glass surface of the capillary for measurements, and the peculiarities of the association of surfactant molecules in a non-aqueous medium. It is obvious that the determination of isotherms of surface tension, CСМ, surface activity and Gibbs adsorption in a non-aqueous medium by conventional methods is incorrect. The stabilizing ability of reverse emulsions of water — alkyd varnish with the addition of the studied emulsifiers has been studied. It is shown that emulsifiers with a high hydroxyl number have the best emulsifying effect, which can be recommended for the production of water-containing alkyd enamels.

Keywords: emulsifier, surface activity, surface tension, micelle formation, hydrophilic-lipophilic balance, hydroxyl number, adsorption, emulsifying ability.

37 Aqueous intumescent coatings with encapsulated ammonium polyphosphate for wooden constructions

31 ASTM D5132 STANDARD:the standard method for determining the horizontal burning rate of polymer materials used in passenger cabins of motor vehicles (Part 7) — Candidate of Military Sci. Savelyev D. V., Candidate of chem. Sci. Pavlovich A. V., Doctor of Tech. Sci. Drinberg A. S., Candidate of chem. Sci. Mametnabiev T. E., Candidate of Pedagogic Sci. Danilova T. V., Candidate of tech. Sci. Ivanov A. V.

41 New functional coatings for investigation in space