TY JOUR TI INFLUENCE OF SECONDARY RAW MATERIALS ADDITION ON THE PROPERTIES OF POLYMER FILMS KW polymer materials KW recycling KW polyethylene JO Modern Technologies and Scientific and Technological Progress AU Genenko, N.I. AU Chernigovskaya, M.A. PY 2024 IS 2024 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»