| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to production of heat protective coatings, intended for constructions and equipment, exploited under temperature conditions from minus 50°C to plus 300°C, and can be used in construction, machine-building, chemical industry, transport, aviation, oil and gas industry, housing and communal services and other branches of industry. Composition includes hollow ceramic microspheres, binding agent and solvent. as binding agent used are organo-soluble resins - alkyd and/or organosilicon resins, as solvent - xylene and/or toluene. In other version of composition realisation water-soluble acrylic acid is used as binding agent and water is used as solvent. Used microspheres have internal diameter from 3-150 mcm and 0.2-5 mcm thick wall. Microspheres with diameter multiple of wavelength of IR radiation of construction, protected by coating, can constitute 40-60% in the content of microspheres.EFFECT: obtaining composition to obtain coating with improved heat protective, moisture protective and thermophysical properties, with higher resistance to impact of high temperatures, vibration load and aggressive media, as well as extension of the range of coating working temperatures with provision of low heat conductivity and high homogeneity and strength of adhesion of coating to base in exploitation under severe conditions of higher humidity without additional protection.8 cl, 2 tbl |
