The effect of aging on tribotechnical characteristics of a twolayer frost-resistant rubber – ultra-high molecular weight polyethylene composite
https://doi.org/10.46973/0201-727X_2025_3_231
Abstract
In the severe conditions of the Far North, the effect of polymers aging on their properties is important due to the long-term impact of various environmental factors leading to polymer degradation. In this work, friction and wear tests were carried out using a scheme simulating a sealing unit, a two-layer composite “rubber - ultra-high molecular weight polyethylene” under various loads, sliding speeds and temperatures. The effect of climatic and thermal aging on the frictional properties and wear resistance of the two-layer composite was estimated. It was found that the friction coefficient depends on the sliding speed, load and external temperature. Aging of the material leads to a decrease in the friction coefficient. The wear resistance of the material increases by 25 % in the second month of aging and does not change over the next four. With accelerated aging tests, wear decreases by 15 %. It can be concluded that the material can be used in friction units for a period limited to six months of climatic aging, and in friction units protected from solar radiation, it can be used without time restrictions.
About the Author
I. V. Shkalei
Ishlinsky Institute for Problems in Mechanics RAS (IPMech RAS)
Russian Federation
Russian Federation
Shkalei Ivan Vladimirovich, Laboratory of Tribology, Postgraduate Student, Junior Researcher
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Review
For citations:
Shkalei I.V. The effect of aging on tribotechnical characteristics of a twolayer frost-resistant rubber – ultra-high molecular weight polyethylene composite. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(3):231-238. (In Russ.) https://doi.org/10.46973/0201-727X_2025_3_231
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