Funct. Mater. 2024; 31 (2): 210-214.

doi:https://doi.org/10.15407/fm31.02.210

Influence of dispersed filler on the abrasive wear index of ultra-high molecular polyethylene

S.V.Tomin, О.V.Yeromenko, Ye.A.Yeriomina

Dniprovsk State Technical University, 2 Dniprobudivska Str., 51918 Kamyanske, Ukraine

Abstract: 

The paper describes the influence of the percentage content of crucible graphite and aluminosilicate microspheres on the abrasive wear index of ultra-high molecular weight polyethylene when worn by rigidly fixed abrasive particles. It is shown that the introduction of 10-30 mass.% of crucible graphite or aluminosilicate microspheres into ultra-high molecular weight polyethylene reduces its abrasive wear rate by 20-35%; minimum wear is achieved with a filler amount of 30 mass.%. The result is explained by the high stiffness and strength of the fillers, which leads to an increase in the resistance of composites to mechanical damage to surfaces; this is confirmed by the morphology of the friction surface (roughness decreases 1,35 times).

Keywords: 
ultra-high molecular weight polyethylene, abrasive wear index, abrasive particles, crucible graphite, aluminosilicate microspheres

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