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<p>In the present study, polypropylene (PP) based nanocomposites reinforced with varying weight fractions of tungsten carbide (WC) nanoparticles were produced through twin screw extrusion followed by injection moulding. The prepared samples underwent morphological examination, specific wear rate performance evaluation and thermal degradation kinetics analysis. Shore D hardness testing revealed that the nanocomposite containing 2 wt% WC (2T) achieved the highest hardness, showing a 7.46% improvement over neat PP. Wear tests conducted at loads of 10&#xa0;N and 20&#xa0;N over an abrasion distance of 1200&#xa0;m demonstrated that the 2T sample possessed the lowest specific wear rate. The activation energy was determined via the Coats- Redfern method and Integrated Procedural Decomposition Temperature (IPDT), with the 1 wt% WC nanocomposite (1T) displaying 9% and 13.01% higher activation energy and IPDT values, respectively, compared to the base matrix. These findings confirm that the incorporation of hard ceramic WC nanoparticles notably enhances the shore D hardness and sliding wear resistance of PP, rendering the developed nanocomposites promising candidates for advanced engineering applications. The developed PP/ WC nanocomposites are suitable for wear resistant, thermally stable automotive parts, industrial bearings, sliding components and lightweight engineering applications.</p> Graphical abstract <p></p>

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Insights into Wear analysis and Decomposition Kinetics of Polypropylene/Tungsten Carbide Nanocomposites

  • 期刊论文

  • 发表日期：

    2026年5月21日

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  • Manu Remanan,
  • Priwiya Peter,
  • Nikhil Raveendran,
  • Sherone Zachariah George,
  • Sreerag Krishnan,
  • Vijay Anil Kumar

摘要

In the present study, polypropylene (PP) based nanocomposites reinforced with varying weight fractions of tungsten carbide (WC) nanoparticles were produced through twin screw extrusion followed by injection moulding. The prepared samples underwent morphological examination, specific wear rate performance evaluation and thermal degradation kinetics analysis. Shore D hardness testing revealed that the nanocomposite containing 2 wt% WC (2T) achieved the highest hardness, showing a 7.46% improvement over neat PP. Wear tests conducted at loads of 10 N and 20 N over an abrasion distance of 1200 m demonstrated that the 2T sample possessed the lowest specific wear rate. The activation energy was determined via the Coats- Redfern method and Integrated Procedural Decomposition Temperature (IPDT), with the 1 wt% WC nanocomposite (1T) displaying 9% and 13.01% higher activation energy and IPDT values, respectively, compared to the base matrix. These findings confirm that the incorporation of hard ceramic WC nanoparticles notably enhances the shore D hardness and sliding wear resistance of PP, rendering the developed nanocomposites promising candidates for advanced engineering applications. The developed PP/ WC nanocomposites are suitable for wear resistant, thermally stable automotive parts, industrial bearings, sliding components and lightweight engineering applications.

Graphical abstract