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<p>The mineral-based nanoparticles derived from grinding of automobile brake pads are used in this study. The influence of nano-brake-pad dust particles in polyimide (PI) reinforced basalt fiber (BF) composites is experimentally investigated. Four different weight fractions of composites are prepared using hot compression molding. The fabricated PBN composites with dispersed nano-dust fillers find applications in automobile and aerospace engineering. The physical properties of the formulated composites are studied using Fourier transform infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA) are carried out to identify the enhanced thermal behavior of the composites. The FTIR spectrum indicates the stretching of molecular structure for the occurrence of C=O links. SEM shows the strong interfacial bonding between the ingredients and matrix. DSC shows the glass transition temperature reduces with nanoparticles addition. TGA reveals that the composites withstand a temperature of 512.15&#xa0;°C without degrading and the percentage of weight loss after degradation of the composite enhances to 28.64% more, when compared to the pure sample. DMA shows a significant increase of about 84.32% in storage modulus and subsequent decrease in the value of tan <i>δ</i> by around 42.9% when the weight percentage of nano-dust particles increases, compared with pure composites. The presence of multiple elements in the nano-dust particles may influence the physical and thermo-mechanical properties of the polymer composite when compared with single compound nanocomposites.</p> Graphical abstract <p></p>

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Thermal and mechanical enhancements in polyimide/basalt fiber composites through mineral-based nano-dust particles

  • 期刊论文

  • 发表日期：

    2025年3月22日

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  • Arputham Arul Jeya Kumar,
  • Ramasamy Senthil Kumar,
  • Madhur Madan,
  • Ankit Gangishetti,
  • Muniyandi Prakash

摘要

The mineral-based nanoparticles derived from grinding of automobile brake pads are used in this study. The influence of nano-brake-pad dust particles in polyimide (PI) reinforced basalt fiber (BF) composites is experimentally investigated. Four different weight fractions of composites are prepared using hot compression molding. The fabricated PBN composites with dispersed nano-dust fillers find applications in automobile and aerospace engineering. The physical properties of the formulated composites are studied using Fourier transform infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA) are carried out to identify the enhanced thermal behavior of the composites. The FTIR spectrum indicates the stretching of molecular structure for the occurrence of C=O links. SEM shows the strong interfacial bonding between the ingredients and matrix. DSC shows the glass transition temperature reduces with nanoparticles addition. TGA reveals that the composites withstand a temperature of 512.15 °C without degrading and the percentage of weight loss after degradation of the composite enhances to 28.64% more, when compared to the pure sample. DMA shows a significant increase of about 84.32% in storage modulus and subsequent decrease in the value of tan δ by around 42.9% when the weight percentage of nano-dust particles increases, compared with pure composites. The presence of multiple elements in the nano-dust particles may influence the physical and thermo-mechanical properties of the polymer composite when compared with single compound nanocomposites.

Graphical abstract