| 摘要 |
FIELD: organic chemistry, special compositions. ^ SUBSTANCE: invention proposes a composition comprising an organic solvent and 0.01-0.5 wt.-% of a mixture of perfluoropolyester-acids of the formula: CF3O[CF(CF3)CF2O]nCF(CF3)COOH and perfluoropolyester-ketones of the formula: CF3O[CF2CFO(CF3)]nCF2C(O)CF3 wherein n = 8-50 in the content of ketones in mixture 1-50 wt.-%. The composition in designated for treatment of solid surfaces for reducing their surface energy that provides regulating wetting, sticking, adhesion, surface hardness, surface catalytic activity and some other parameters. Invention provides enhancing the thermal stability of the composition (providing working capacity of friction units below 220°C), decreasing abrasion of surfaces and friction coefficient. ^ EFFECT: improved and valuable technical properties of composition. ^ 1 tbl |
