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<p>Nylon 6 is a versatile engineering polymer extensively used in automotive, agricultural, and mechanical applications. However, its widespread utilization contributes to significant plastic waste, making its recycling a key aspect of sustainable development and the circular economy. In this study, recycled Nylon 6 was incorporated into virgin Nylon 6 at 15 and 20% weight ratios to evaluate its performance in high-demand applications. To enhance the material’s properties and bridge the performance gap between recycled and virgin Nylon 6, nanofillers, graphene oxide (GO) and reduced graphene oxide (rGO) were introduced in varying concentrations (0.5–2.5%). The resulting composites were subjected to a series of thermal and electrical characterizations to assess their suitability for engineering use. Thermal properties were evaluated using heat deflection temperature (HDT), Vicat softening point (VSP), differential scanning calorimetry (DSC), and thermal conductivity tests, all conducted as per relevant ASTM D standards. Electrical properties were analysed through surface resistivity measurements. Scanning electron microscopy (SEM) confirmed uniform dispersion of the nanofillers within the polymer matrix. A 2% nanofiller loading demonstrated optimal enhancement in thermal and electrical properties, indicating its potential for high-performance recycled Nylon 6 composites. This research contributes to sustainable material development by improving the properties of recycled polymers for practical engineering applications through nanotechnology.</p>

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Synergistic effects of graphene nanofillers on recycled Nylon 6: Thermal and electrical characterization

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • S A Kamble,
  • R S N Sahai,
  • D Biswas

摘要

Nylon 6 is a versatile engineering polymer extensively used in automotive, agricultural, and mechanical applications. However, its widespread utilization contributes to significant plastic waste, making its recycling a key aspect of sustainable development and the circular economy. In this study, recycled Nylon 6 was incorporated into virgin Nylon 6 at 15 and 20% weight ratios to evaluate its performance in high-demand applications. To enhance the material’s properties and bridge the performance gap between recycled and virgin Nylon 6, nanofillers, graphene oxide (GO) and reduced graphene oxide (rGO) were introduced in varying concentrations (0.5–2.5%). The resulting composites were subjected to a series of thermal and electrical characterizations to assess their suitability for engineering use. Thermal properties were evaluated using heat deflection temperature (HDT), Vicat softening point (VSP), differential scanning calorimetry (DSC), and thermal conductivity tests, all conducted as per relevant ASTM D standards. Electrical properties were analysed through surface resistivity measurements. Scanning electron microscopy (SEM) confirmed uniform dispersion of the nanofillers within the polymer matrix. A 2% nanofiller loading demonstrated optimal enhancement in thermal and electrical properties, indicating its potential for high-performance recycled Nylon 6 composites. This research contributes to sustainable material development by improving the properties of recycled polymers for practical engineering applications through nanotechnology.