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Article

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Title

Tribological behavior of polypropylene-based composites reinforced with cherry seed powder under lubrication conditions

Authors

[ 1 ] Instytut Maszyn Roboczych i Pojazdów Samochodowych, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ 2 ] Instytut Technologii Mechanicznej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 3 ] Instytut Badań Materiałowych i Inżynierii Kwantowej, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.7] Civil engineering, geodesy and transport
[2.8] Materials engineering
[2.9] Mechanical engineering

Year of publication

2025

Published in

Wear

Journal year: 2025 | Journal volume: vol. 564-565

Article type

scientific article

Publication language

english

Keywords
EN
  • Biocomposites
  • Polypropylene
  • Polymer wear
Abstract

EN The article presents the effect of cherry seed powder (CSP) addition to the polypropylene (PP) matrix on tribological properties: coefficient of friction (COF) and wear under lubrication conditions using paraffin and silicone oil. The composites differed in the percentage content of the filler (5, 10, 15 wt%) and the size of CSP particles (<400 μm, 400–630 μm, 630–800 μm). 30-minute friction tests were conducted using the “block-on-ring” system, and the wear mechanisms were identified based on SEM analysis supplemented with topographic analysis. To fully interpret the results, mechanical tests of the obtained composites were also performed and a viscosity-temperature analysis of the oils used was performed. In both the case of paraffin and silicone oil, it was observed that adding CSP to the polymer matrix reduces the COF. Paraffin oil tends to reduce the COF by increasing the percentage of filler (regardless of particle size). In contrast, silicone oil has the lowest COF observed in the case of 5 % wt. and the highest granulation. The dominant wear mechanism in the case of paraffin oil lubrication turned out to be micro-abrasion, while in the case of silicone oil, micro-abrasion and micro-adhesion. Moreover, it seems that the lower dynamic viscosity of silicone oil at lower temperatures favored the destructive effect of crushed filler particles on the composite surfaces in the initial parts of the tests.

Date of online publication

13.01.2025

Pages (from - to)

205745-1 - 205745-23

DOI

10.1016/j.wear.2025.205745

URL

https://www.sciencedirect.com/science/article/pii/S0043164825000146?dgcid=author

Comments

Article Number: 205745

Ministry points / journal

200

Impact Factor

5,3 [List 2023]

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