science-review.ru
Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440
ISSN 2500-0799
ПИ №ФС77-57440
THE SURFACE OF PROTECTIVE-DECORATIVE COATING FORMED BY THE WATER AND DISPERSIVE VARNISH ON WOOD AT AERO IONIZATION IS RESEARCH
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In article to influence of aero ionization drying on a roughness of coverings protective-decorative coating on the wood, formed water-dispersive acryle-polyurethane varnish is researched. Influence of a film-former and solvent as components of a coating composition on a wood substrate in the course of covering formation is considered. Decrease in a roughness of a surface of a protective-decorative coating covering of the formed at an intensification drying by aero ionization is experimentally confirmed. Theoretical justification of process of decrease in a roughness of a surface is executed and the mechanism of influence of aero ionization on the electrokinetic processes proceeding in a cured layer of a varnish covering on wood is considered. At an curing in a thin layer on a wood surface as a result of aero ionization free molecules of solvent of the coating composition which was a part have opportunity to be polarized and leave a layer on its surface and only their small part interacts with a wood substrate and gets into amorphous sites of cellulose microfibrilla and between microfibrilla, causing not significant increase in a roughness.