FIELD: chemistry.
SUBSTANCE: method involves pre-treatment of objects with organic solvent (pentane, hexane, ethanol, carbon treatrachloride or their mixture), drying, treatment with a mixture of inert gas and fluorine with concentration of 2 to 5 vol % for 1 to 10 minutes, and then with the same mixture with concentration of 6 to 30 vol % for 10 to 300 minutes, and simultaneous elastic deformation of the object by bending in two opposite directions.
EFFECT: invention allows for reducing permeability of the material to low-molecular substances, increasing chemical resistance and reducing reagent consumption during modification of objects.
6 cl, 2 tbl, 2 dwg
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