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<p>Carbon nanotubes (CNTs) were incorporated to create nanocomposites of ethylene-propylene-diene monomer (EPDM) and styrene-butadiene rubber (SBR). These nanocomposites underwent comprehensive evaluation of their cure and mechanical properties, specifically assessing tensile strength, elongation at break, tear strength, stress at 100% elongation, rebound resilience, and hardness. Additional assessments included abrasion resistance, swelling resistance, crosslinking density, compression set, and morphology. Results from mechanical testing demonstrated substantial improvements in key properties, with tensile strength increased by up to 99% and stress at 100% elongation enhanced by up to 29%, relative to pure EPDM/SBR blends. To gain deeper insights into the nanocomposite structure, the dispersion state of CNTs within the EPDM/SBR matrix was investigated using Field Emission Scanning Electron Microscopy (FESEM), revealing the morphology and distribution of CNTs throughout the rubber matrix.</p>

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Carbon nanotubes (CNTs) impact on the mechanical properties and swelling behavior of EPDM/SBR blend nanocomposites

  • 期刊论文

  • 发表日期：

    2025年7月30日

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  • S. Vishvanathperumal,
  • K.N. Ramu,
  • G. Anand,
  • V. Navaneethakrishnan

摘要

Carbon nanotubes (CNTs) were incorporated to create nanocomposites of ethylene-propylene-diene monomer (EPDM) and styrene-butadiene rubber (SBR). These nanocomposites underwent comprehensive evaluation of their cure and mechanical properties, specifically assessing tensile strength, elongation at break, tear strength, stress at 100% elongation, rebound resilience, and hardness. Additional assessments included abrasion resistance, swelling resistance, crosslinking density, compression set, and morphology. Results from mechanical testing demonstrated substantial improvements in key properties, with tensile strength increased by up to 99% and stress at 100% elongation enhanced by up to 29%, relative to pure EPDM/SBR blends. To gain deeper insights into the nanocomposite structure, the dispersion state of CNTs within the EPDM/SBR matrix was investigated using Field Emission Scanning Electron Microscopy (FESEM), revealing the morphology and distribution of CNTs throughout the rubber matrix.