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<p>In this study, multi-walled carbon nanotubes (MWCNTs) were incorporated into ethylene-propylene-diene monomer (EPDM) and styrene-butadiene rubber (SBR) blends to develop high-performance nanocomposites. The prepared materials were thoroughly characterized to evaluate their curing behavior and a wide range of mechanical and physical properties, including tensile strength, elongation at break, tear strength, stress at 100% elongation, rebound resilience, and Shore A hardness. Additional assessments encompassed abrasion resistance, swelling resistance, crosslink density, compression set, and morphological analysis. The incorporation of MWCNTs resulted in significant improvements in mechanical properties, with tensile strength increasing by up to 99% and stress at 100% elongation improving by 29% compared to the unfilled EPDM/SBR blend. Enhanced swelling resistance and crosslink density further confirmed the effective interaction between the nanotubes and the rubber matrix. Field Emission Scanning Electron Microscopy (FESEM) revealed uniform dispersion and strong interfacial adhesion of MWCNTs within the matrix. These results demonstrate the potential of MWCNTs in reinforcing EPDM/SBR nanocomposites for advanced rubber engineering applications.</p>

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Role of carbon nanotubes in improving the mechanical and swelling resistance characteristics of EPDM/SBR blends

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • S. Vishvanathperumal,
  • K. N. Ramu,
  • K. A. V. Roossvelt Prabhu,
  • V. Navaneethakrishnan

摘要

In this study, multi-walled carbon nanotubes (MWCNTs) were incorporated into ethylene-propylene-diene monomer (EPDM) and styrene-butadiene rubber (SBR) blends to develop high-performance nanocomposites. The prepared materials were thoroughly characterized to evaluate their curing behavior and a wide range of mechanical and physical properties, including tensile strength, elongation at break, tear strength, stress at 100% elongation, rebound resilience, and Shore A hardness. Additional assessments encompassed abrasion resistance, swelling resistance, crosslink density, compression set, and morphological analysis. The incorporation of MWCNTs resulted in significant improvements in mechanical properties, with tensile strength increasing by up to 99% and stress at 100% elongation improving by 29% compared to the unfilled EPDM/SBR blend. Enhanced swelling resistance and crosslink density further confirmed the effective interaction between the nanotubes and the rubber matrix. Field Emission Scanning Electron Microscopy (FESEM) revealed uniform dispersion and strong interfacial adhesion of MWCNTs within the matrix. These results demonstrate the potential of MWCNTs in reinforcing EPDM/SBR nanocomposites for advanced rubber engineering applications.