FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing oxidation-resistant ultrahigh molecular weight polyethylene (UHMWPE) material. The method involves forming UHMWPE with an additive and treatment with gamma-rays or an electron beam. Exposure is carried out on air under normal atmospheric conditions with a dose of 2-40 Mrad. The exposed head has oxidation index after artificial ageing which is equal to or lower than that of standard UHMWPE material sterilised with gamma-rays.
EFFECT: UHMWPE material exhibits improved wear resistance and good resistance to oxidation.
48 cl, 5 tbl, 5 ex
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