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<p>Polymer-based matrix composites are familiar in automotive applications. Due to their high strength-to-weight ratio, improved chemical resistance, and ease of processing. However, the epoxy-based composites are found to be more brittle, with reduced impact toughness and limited flexibility. This research on polymer composites is developed using a polyester matrix, embedded with 16 wt% of short neem (treated) fibers and varying wt% of titanium nanoparticles (Ti, 50&#xa0;nm), via a hot compression mould process. The effectiveness of Ti nanoparticle loading on the functional properties of polyester/neem (treated) fibers is studied and compared. Given the significance of the hot-compression process, the Ti nanoparticles and neem (treated) fibers are effectively dispersed in the polyester matrix, as confirmed by transmission electron microscopy (TEM). The strong interface between the fiber/particle combination and the polyester matrix improved tensile, impact, hardness, and moisture-absorption resistance. According to the investigation results, the polyester composite made with 16 wt% neem fiber and 6 wt% Ti nanoparticles exhibits the highest tensile stress (89.6&#xa0;MPa), improved impact toughness (4.3&#xa0;J/mm<sup>2</sup>), high microhardness (34 HV), and reduced moisture (water) absorption (1.5% at 14 days). Moreover, the addition of Ti nanoparticles decreased the elongation from 45.5% to 39.5% and also enhanced its thermal stability 11.3% than polyester matrix (base). The novel composite sample is the trade for automotive cabinet and seat frame applications.</p>

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Integration and mechanical and water absorption characteristics of treated natural fiber-titanium nanoparticles embedded polyester composites

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月15日

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  • M. Aruna,
  • Nagabhooshanam Nagarajan,
  • Sharad Rathore,
  • Protyay Dey,
  • Helen Merina Albert,
  • M. Janaki Ram ,
  • Ramya Maranan,
  • M. Murali,
  • S. Sathiyamurthy,
  • Rajkumar Sivanraju

摘要

Polymer-based matrix composites are familiar in automotive applications. Due to their high strength-to-weight ratio, improved chemical resistance, and ease of processing. However, the epoxy-based composites are found to be more brittle, with reduced impact toughness and limited flexibility. This research on polymer composites is developed using a polyester matrix, embedded with 16 wt% of short neem (treated) fibers and varying wt% of titanium nanoparticles (Ti, 50 nm), via a hot compression mould process. The effectiveness of Ti nanoparticle loading on the functional properties of polyester/neem (treated) fibers is studied and compared. Given the significance of the hot-compression process, the Ti nanoparticles and neem (treated) fibers are effectively dispersed in the polyester matrix, as confirmed by transmission electron microscopy (TEM). The strong interface between the fiber/particle combination and the polyester matrix improved tensile, impact, hardness, and moisture-absorption resistance. According to the investigation results, the polyester composite made with 16 wt% neem fiber and 6 wt% Ti nanoparticles exhibits the highest tensile stress (89.6 MPa), improved impact toughness (4.3 J/mm2), high microhardness (34 HV), and reduced moisture (water) absorption (1.5% at 14 days). Moreover, the addition of Ti nanoparticles decreased the elongation from 45.5% to 39.5% and also enhanced its thermal stability 11.3% than polyester matrix (base). The novel composite sample is the trade for automotive cabinet and seat frame applications.