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<p>In this study, polyurethane foams (PUFs) were reinforced with molybdenum trioxide (MoO₃) nanoparticles to enhance their mechanical, thermal, and flame-retardant properties. Nanocomposite foams were fabricated by incorporating MoO₃ at varying loadings (5, 10, and 15 wt%), resulting in a notable 36% increase in compressive strength at the highest concentration. Thermogravimetric analysis indicated a significant improvement in thermal stability and flame retardancy, with the residual mass at 700&#xa0;°C rising from 9% to 23% and the maximum weight loss decreasing to 1.1%. These enhancements suggest that MoO₃-filled PUFs offer promising potential for use in fire-sensitive and durability-critical applications such as construction, automotive, and aerospace sectors.</p>

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PUF/MoO3 nanocomposites from soybean oil: synthesis, characterization, flame retardancy and mechanical properties

  • 期刊论文

  • 发表日期：

    2026年2月24日

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  • Fereshteh Soltani Mohamadi,
  • Hossein Ghafuri,
  • Behrooz Akhtar,
  • Peyman Hanifehnejad

摘要

In this study, polyurethane foams (PUFs) were reinforced with molybdenum trioxide (MoO₃) nanoparticles to enhance their mechanical, thermal, and flame-retardant properties. Nanocomposite foams were fabricated by incorporating MoO₃ at varying loadings (5, 10, and 15 wt%), resulting in a notable 36% increase in compressive strength at the highest concentration. Thermogravimetric analysis indicated a significant improvement in thermal stability and flame retardancy, with the residual mass at 700 °C rising from 9% to 23% and the maximum weight loss decreasing to 1.1%. These enhancements suggest that MoO₃-filled PUFs offer promising potential for use in fire-sensitive and durability-critical applications such as construction, automotive, and aerospace sectors.