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<p>The present study investigates the development of bio-nanocomposites by incorporating single-walled carbon nanotubes (SWCNT) at varying weight percentages (0, 0.05, 0.15, 0.25, 0.35, and 0.45 wt%) using ultrasonic dispersion to enhance the properties of bio- epoxy (EcoPoxy). The mechanical and thermal properties of the EcoPoxy composite were comprehensively evaluated using tensile testing, flexural testing, and thermogravimetric analysis (TGA). Morphological, elemental, and chemical analyses were conducted using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier-transform infrared spectroscopy (FTIR). Results showed significant improvement in mechanical properties up to 0.35 wt% SWCNT, beyond which performance declined. At 0.35 wt%, the tensile strength and modulus increased by 37.22% and 19.84%, while flexural strength and modulus improved by 83.23% and 92.83%, respectively, compared to neat EcoPoxy. TGA revealed enhanced thermal stability at this concentration, with the 10% mass loss temperature rising from 346.9&#xa0;°C (neat EcoPoxy) to 362.3&#xa0;°C and the 50% mass loss temperature from 378.1&#xa0;°C to 396.4&#xa0;°C. SEM showed improved fracture resistance due to crack deflection by dispersed SWCNT. EDX confirmed carbon and oxygen as predominant elements, while FTIR indicates various functional groups between SWCNT and the EcoPoxy matrix. This study offers a robust methodological approach that aligns with recent research on improving mechanical and thermal properties of environmentally sustainable materials.</p>

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Development and characterization of SWCNT reinforced bio-epoxy (EcoPoxy) nanocomposites

  • 期刊论文

  • 发表日期：

    2025年6月4日

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  • Vivekanand Singh,
  • Sanjay Mishra,
  • Sanjeev Kumar Singh Yadav,
  • Abhishek Kumar,
  • Avadesh Yadav

摘要

The present study investigates the development of bio-nanocomposites by incorporating single-walled carbon nanotubes (SWCNT) at varying weight percentages (0, 0.05, 0.15, 0.25, 0.35, and 0.45 wt%) using ultrasonic dispersion to enhance the properties of bio- epoxy (EcoPoxy). The mechanical and thermal properties of the EcoPoxy composite were comprehensively evaluated using tensile testing, flexural testing, and thermogravimetric analysis (TGA). Morphological, elemental, and chemical analyses were conducted using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier-transform infrared spectroscopy (FTIR). Results showed significant improvement in mechanical properties up to 0.35 wt% SWCNT, beyond which performance declined. At 0.35 wt%, the tensile strength and modulus increased by 37.22% and 19.84%, while flexural strength and modulus improved by 83.23% and 92.83%, respectively, compared to neat EcoPoxy. TGA revealed enhanced thermal stability at this concentration, with the 10% mass loss temperature rising from 346.9 °C (neat EcoPoxy) to 362.3 °C and the 50% mass loss temperature from 378.1 °C to 396.4 °C. SEM showed improved fracture resistance due to crack deflection by dispersed SWCNT. EDX confirmed carbon and oxygen as predominant elements, while FTIR indicates various functional groups between SWCNT and the EcoPoxy matrix. This study offers a robust methodological approach that aligns with recent research on improving mechanical and thermal properties of environmentally sustainable materials.