FEATURES OF MECHANICAL PROPERTIES OF NANOCOMPOSITES BASED ON ISOTACTIC POLYPROPYLENE AND BLOCK COPOLYMER PROPYLENE WITH ETHYLENE - Berdinazarov Qodirbek Nuridin ugli , Khakberdiev Elshod Olmosovich , Normurodov Nurbek Fayzulla ugli , Sadikov Shukhrat Gafurovich , Ashurov Nigmat Rustamovich (PalArch’s Journal of Archaeology of Egypt / Egyptology, 2020)