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<p>In the current scenario, renewable-resource-based biomaterials offer significant advantages owing to their availability, cost-effectiveness, and non-toxic nature. This study investigated the tribological performance of Cissus quadrangularis stem fiber (CQSF)/epoxy composites with and without silica nanofillers. Composites were prepared using a fixed 30 wt% fiber content with a fiber length of 40&#xa0;mm, while nano silica fillers were added at 1 wt% and 2 wt%. The friction and wear properties were evaluated using response surface methodology (RSM), and the wear mechanisms were further examined using scanning electron microscopy (SEM). The specific wear rate (SWR) ranged from 9 × 10⁻⁵ to 3.48 × 10⁻⁴ mm³/Nm, with the lowest SWR of 9 × 10⁻⁵ mm³/Nm achieved at 2 wt% nano-silica content. The coefficient of friction (COF) values varied from 0.5 to 0.85, with an optimal SWR of 9 × 10⁻⁵ mm³/Nm and a COF of 0.81. These findings highlight the potential of composites for applications requiring high roughness and low wear rates, such as gripping materials.</p>

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Enhancing friction and wear performance of epoxy composites with sustainable cissus quadrangularis stem fiber and nano silica fillers

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月13日

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  • Jenish Iyyadurai,
  • Felix Sahayaraj Arockiasamy,
  • Gokulkumar Sivanantham,
  • Yuvaraj Gopal,
  • Sasi Kumar Mani,
  • Makeshkumar Mani,
  • Rajkumar Sivanraju

摘要

In the current scenario, renewable-resource-based biomaterials offer significant advantages owing to their availability, cost-effectiveness, and non-toxic nature. This study investigated the tribological performance of Cissus quadrangularis stem fiber (CQSF)/epoxy composites with and without silica nanofillers. Composites were prepared using a fixed 30 wt% fiber content with a fiber length of 40 mm, while nano silica fillers were added at 1 wt% and 2 wt%. The friction and wear properties were evaluated using response surface methodology (RSM), and the wear mechanisms were further examined using scanning electron microscopy (SEM). The specific wear rate (SWR) ranged from 9 × 10⁻⁵ to 3.48 × 10⁻⁴ mm³/Nm, with the lowest SWR of 9 × 10⁻⁵ mm³/Nm achieved at 2 wt% nano-silica content. The coefficient of friction (COF) values varied from 0.5 to 0.85, with an optimal SWR of 9 × 10⁻⁵ mm³/Nm and a COF of 0.81. These findings highlight the potential of composites for applications requiring high roughness and low wear rates, such as gripping materials.