Keyword: «full-scale exposure»

This paper presents the results of comparative studies of the physical and mechanical properties of ultra-high molecular weight polyethylene and modified polymer composite materials (PCM) before and after bench full-scale tests at the climatic test site in Yakutsk. It is established that in the conditions of the sharply continental climate of Yakutia, ultra-high molecular weight polyethylene and a composite containing 5 wt. % of carbon fibers of the brand "Belum" are aging by the fourth month of exposure. In this regard, ultra-high molecular weight polyethylene was modified not only with carbon fibers to increase the physico-mechanical and tribotechnical parameters, but also a stabilizer of the SO-4 brand produced by NIOH SB RAS was introduced. Based on the conducted studies, it was found that the additional modification of the UHMWPE-UV composite with a stabilizer of the CO-4 brand leads to a slowdown in the photo-oxidative processes of the composite in the open air, which has a positive effect on the preservation of physical and mechanical parameters for a long time under the influence of adverse climatic factors. This fact allows us to predict the high performance of products made of the developed material in the conditions of the sharply continental climate of Yakutia.