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<p>Graphene oxide (GO) was employed as a reinforcing nanofiller to enhance the mechanical, hardness, and swelling characteristics of chloroprene rubber/natural rubber (CR/NR) blends. GO was incorporated at varying loadings (0–10 phr) through melt mixing, and the sulfur-vulcanized composites were systematically evaluated. The incorporation of GO increased torque values and reduced curing times, indicating improved crosslinking efficiency. Mechanical testing revealed substantial improvements in tensile strength (by 47%), stress at 100% elongation (by 47%), tear strength (by 55%), hardness, and abrasion resistance with increasing GO content. In contrast, elongation at break and rebound resilience decreased by 29% and 25%, respectively. Both tensile and swelling resistance properties reached their maximum at 6 phr GO and declined beyond this level due to filler agglomeration. These results confirm that optimally dispersed GO enhances interfacial interactions and structural integrity, demonstrating its potential as an effective nanofiller for developing high-performance CR/NR composites.</p>

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Enhancement of mechanical strength and swelling resistance in chloroprene rubber/natural rubber composites using graphene oxide

  • 期刊论文

  • 发表日期：

    2026年5月27日

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  • K. Parthasarathy,
  • S. Baskar,
  • S. Vishvanathperumal

摘要

Graphene oxide (GO) was employed as a reinforcing nanofiller to enhance the mechanical, hardness, and swelling characteristics of chloroprene rubber/natural rubber (CR/NR) blends. GO was incorporated at varying loadings (0–10 phr) through melt mixing, and the sulfur-vulcanized composites were systematically evaluated. The incorporation of GO increased torque values and reduced curing times, indicating improved crosslinking efficiency. Mechanical testing revealed substantial improvements in tensile strength (by 47%), stress at 100% elongation (by 47%), tear strength (by 55%), hardness, and abrasion resistance with increasing GO content. In contrast, elongation at break and rebound resilience decreased by 29% and 25%, respectively. Both tensile and swelling resistance properties reached their maximum at 6 phr GO and declined beyond this level due to filler agglomeration. These results confirm that optimally dispersed GO enhances interfacial interactions and structural integrity, demonstrating its potential as an effective nanofiller for developing high-performance CR/NR composites.