Tribotechnical Characteristics of HDPE-Based Polymer Composites at Friction over Snow

Results of evaluating the tribotechnical characteristics of polymer composite materials based on lowdensity polyethylene PE273, modified with various fillers: polyethylene wax (5 %), graphite with carbon black (15 %), and ultra-high molecular weight polyethylene (5 % UHMWPE), are presented.

The aim of the work was to evaluate the friction coefficient during contact with snow and the wear resistance of the materials under conditions of dry friction at extreme load-speed parameters.

The studies were conducted using a specialized tribometer, simulating ski operating conditions, and a 2070 SMT-1 friction machine. It was found that the introduction of 5 % UHMWPE into the base polymer reduces the friction coefficient by a factor of 2—3 (to 0.02—0.08) in the temperature range from –10 °C to 0 °C. Furthermore, this composition-maintained operability at friction over steel at velocity 0,5 m/s at contact pressures up to 1.0 MPa, while other studied composites failed at 0.75 MPa.

The results of the work are of practical importance for the development of sliding surfaces for sports and transportation means operating under extreme conditions of temperature and load.

1. Kablov E.N. Kompozity: segodnya i zavtra // Metally Evrazii. — 2015, № 1, 36—39 (in Russian)

2. Peseckij S.S., Myshkin N.K. Polimernye kompozity mnogofunkcional'nogo naznacheniya: perspektivy razrabotok i primeneniya v Belarusi (obzor) // Polimernye materialy i tekhnologii. — 2016 (2), № 4, 6—29 (in Russian)

3. Sviridenok A.I., Myshkin N.K., and Kovaleva I.N. Latest Developments in Tribology in the Journal Friction and Wear // Journal of Friction and Wear. — 20153 (6), no. 6, 449—453. DOI: 10.3103/S106836661506015X

4. Kietzig A.M. A Biomimetic Approach to Ice Friction // In: Green Tribology. Green Energy and Technology / Nosonovsky M. and Bhushan B. (eds). — Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23681-5_9

5. Gerasimov N.P. Ispol'zovanie ftoroplastovoj skol'zyashchej poverhnosti dlya povysheniya effektivnosti skol'zheniya begovyh lyzh // Mezhdunarodnyj nauchno-issledovatel'skij zhurnal. — 2015, № 7(38), 10—12 (in Russian)

6. Cooper J.W. and Mccrum N.G. Anomalous Internal Friction in Linear Polyethylene at Low Temperatures // J Mater Sci — 1972 (7), 1221—1224. https://doi.org/10.1007/BF00550206

7. Gogoleva O.V., Popov S.N., Petrova P.N. et al. Structure and Properties of Composites Based on UltrahighMolecular Polyethylene and Thermally Expanded Graphite // Russ. Engin. Res. — 2014 (34), 743—746. https://doi.org/10.3103/S1068798X14120120

8. Kanaga Karuppiah K.S., Bruck A. L., Sundararajan S., Wang J., Lin Zh., Xu Zh.-H., and Li X. Friction and Wear Behavior of Ultra-High Molecular Weight Polyethylene as a Function of Polymer Crystallinity // Acta Biomaterialia. — 2008 (4), no. 5, 1401—1410. DOI: 10.1016/j.actbio.2008.02.022

9. Aderikha V.N., Pesetskii S.S. Sloj skol'zheniya begovyh plastikovyh lyzh: specifika uslovij treniya, tekushchee sostoyanie i perspektivy issledovanij i razrabotok (obzor) // Polimernye materialy i tekhnologii. — 2019 (5), № 3, 6—23. DOI: 10.32864/polymmattech-2019-5-3-6-23 (in Russian)

10. Peseckij S.S., Zhdanok S.A., Krauklis A.V., Bogdanovich S.P., Buyakov I.F., Golubovich V.V. Osobennosti struktury i svojstv polietilentereftalata, soderzhashchego dobavki uglerodnyh nanonapolnitelej i udlinitelya cepi // Doklady NAN Belarusi. — 2010 (54), № 6, 105—110 (in Russian)