| 摘要 |
FIELD: chemical industry; shipbuilding industry; aerospace industry;, atomic power industry; petroleum industry; food-processing industry; production of the enamels for protection of the metallic, wooden and other types of surfaces operating under conditions of the especially hazardous environments. ^ SUBSTANCE: the invention is pertaining to the enamel used for production of the weather-resistant, corrosion-resistant, radiation-proof and decontaminated coatings, which may be applied in shipbuilding, aerospace engineering, atomic power engineering, and also in petroleum and the food-processing industry for external and internal works at protection of the metals, wood, rubber, concrete, bricks, slate surfaces, which are operating under conditions of the especially of aggressive environments. The enamel represents the composition including 100 mass shares of the semi-finished enamel product and 2.1-28.6 mass shares of the curing agent of the amine type. The semi-finished enamel product contains the following ratio of the ingredients (in mass %): 17-30 - pigments, 7-15 -the mixtures of microtalcum, the caolin and micromica as the filler, 5.22-6.93 - the organic solvent, the remaining - 50-60 mass % - the solution of the epoxy pitch-basis in the organic solvent. The degree of the polycondensation in the organic solvent of the pitch-basis compound makes n = 0-2. The epoxy pitch-basis is produced by epoxidation of the aromatic-conjugated hydroxy phenylene having the degree of the polycondensation of n = 0-2 produced from dihydricphenol or alkylresorcin. Epoxidation of the hydroxyphenylene conduct in the melt at the temperature of 120-165° at presence of 0.15-0.35 mass % of 2,4,6-tridimethylaminomethylphenol up to the content of the epoxy groups of 10.1-11.0 mass %. The invention allows to improve the enamel stability against the actions of the atmosphere, corrosion, radiation and the means of the decontamination. ^ EFFECT: the invention allows to improve the enamel stability against the actions of the atmosphere, corrosion, radiation and the means of the decontamination. ^ 8 cl, 4 tbl, 8 ex |
