FIELD: chemistry.
SUBSTANCE: invention relates to theme of modification of surface of polymer materials to reduce oxygen permeability in order to increase storage term of packed materials, sensitive to oxygen, such as medications, dairy products, bakery products, silage mass. Method includes processing of film with gaseous mixture, which contains fluorine 10-15 vol %, nitrogen 68-72 vol %, oxygen 17-18 vol %, time of processing is 10-20 min, and pressure is 0-2 bar.
EFFECT: reduction of oxygen permeability of films.
1 ex
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