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<p>The mechanical characteristics and sliding wear behavior of epoxy composites reinforced with rapeseed stem fiber (RS) are examined, along with the synergistic effects of a hybrid silicon dioxide (SiO<sub>2</sub>) filler. Composites containing 10 wt% rapeseed stem fiber and 3 wt% silicon dioxide nanoparticles had a hardness of 40.5 HV, but those with 10 wt% rapeseed stem fiber and 4.5 wt% nSiO₂ shown superior mechanical properties (tensile strength of 50.8&#xa0;MPa, flexural strength of 27.3&#xa0;MPa, and impact energy of 3&#xa0;J). Due to particle aggregation and uneven distribution, the mechanical properties of rapeseed stem fiber-epoxy composites deteriorate with higher nSiO₂ loadings (4.5 wt%). Control factors, including sliding velocity (1.5&#xa0;m·s⁻¹ to 4.5&#xa0;m·s⁻¹), SiO₂ concentration (0 wt% to 4.5 wt%), and normal load (10&#xa0;N to 40&#xa0;N), were utilized to formulate the design of optimization. Following the application of the Taguchi method to optimize the sliding wear rate, ANOVA to was employed assess the relevance of the control parameters. The results showed that optimal specific wear rate were attained with a SV of 1.5&#xa0;m/s (61.97%), a nSiO₂ composition of 4.5 wt% (21.17%), and a normal load of 30&#xa0;N (11.52%).</p>

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Influence of rapeseed stem fiber and silicon dioxide nanoparticles on the tribological performance and mechanical characteristics of epoxy composites

  • 期刊论文

  • 发表日期：

    2026年4月22日

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  • Prashant D Kamble,
  • Pramod G. Musrif,
  • Rajasekaran Saminathan,
  • Vignesh K,
  • Muzammil parvez M,
  • Raajananthini K

摘要

The mechanical characteristics and sliding wear behavior of epoxy composites reinforced with rapeseed stem fiber (RS) are examined, along with the synergistic effects of a hybrid silicon dioxide (SiO2) filler. Composites containing 10 wt% rapeseed stem fiber and 3 wt% silicon dioxide nanoparticles had a hardness of 40.5 HV, but those with 10 wt% rapeseed stem fiber and 4.5 wt% nSiO₂ shown superior mechanical properties (tensile strength of 50.8 MPa, flexural strength of 27.3 MPa, and impact energy of 3 J). Due to particle aggregation and uneven distribution, the mechanical properties of rapeseed stem fiber-epoxy composites deteriorate with higher nSiO₂ loadings (4.5 wt%). Control factors, including sliding velocity (1.5 m·s⁻¹ to 4.5 m·s⁻¹), SiO₂ concentration (0 wt% to 4.5 wt%), and normal load (10 N to 40 N), were utilized to formulate the design of optimization. Following the application of the Taguchi method to optimize the sliding wear rate, ANOVA to was employed assess the relevance of the control parameters. The results showed that optimal specific wear rate were attained with a SV of 1.5 m/s (61.97%), a nSiO₂ composition of 4.5 wt% (21.17%), and a normal load of 30 N (11.52%).