Scholarlink

<p>Multi-walled carbon nanotubes (MWCNTs), 1-hexyl-3-methylimidazolium bromide–functionalized MWCNTs (HMIM-Br@MWCNTs), and ethyl-4-aminocinnamate–functionalized MWCNTs (EAC@MWCNTs) were incorporated into ethylene–propylene–diene rubber/styrene–butadiene rubber (EPDM/SBR) blends to evaluate their influence on curing behavior, mechanical performance, and physical properties. The composites were prepared using a conventional two-roll mill followed by compression molding. The effects of pristine and surface-modified nanotubes on cure characteristics, tensile strength, modulus, tear strength, hardness, abrasion resistance, compression set, and swelling resistance were systematically investigated. The incorporation of MWCNT-based fillers significantly enhanced filler–matrix interactions and promoted efficient stress transfer within the elastomer network. Tensile strength increased progressively with filler loading and reached an optimum at 5 phr. At this concentration, the tensile strength improved by approximately 99% for MWCNT-filled composites, 236% for HMIM-Br@MWCNT-reinforced systems, and 249% for EAC@MWCNT composites compared with the unfilled blend. The superior performance of the functionalized nanotubes was attributed to improved dispersion and stronger interfacial adhesion with the rubber matrix. However, elongation at break and rebound resilience decreased due to increased stiffness and restricted polymer chain mobility. Overall, the results demonstrate that surface-functionalized MWCNTs effectively reinforce EPDM/SBR-based elastomer systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mechanical performance enhancement of EPDM/SBR-based composites reinforced with MWCNTs, 1-Hexyl-3-methylimidazolium bromide-modified MWCNTs, and Ethyl-4-aminocinnamate-modified MWCNTs

  • 期刊论文

  • 发表日期：

    2026年5月2日

查看全文
  • V. Sivaramakrishnan,
  • S. Vishvanathperumal,
  • J. Vasantheroy,
  • K. N. Ramu

摘要

Multi-walled carbon nanotubes (MWCNTs), 1-hexyl-3-methylimidazolium bromide–functionalized MWCNTs (HMIM-Br@MWCNTs), and ethyl-4-aminocinnamate–functionalized MWCNTs (EAC@MWCNTs) were incorporated into ethylene–propylene–diene rubber/styrene–butadiene rubber (EPDM/SBR) blends to evaluate their influence on curing behavior, mechanical performance, and physical properties. The composites were prepared using a conventional two-roll mill followed by compression molding. The effects of pristine and surface-modified nanotubes on cure characteristics, tensile strength, modulus, tear strength, hardness, abrasion resistance, compression set, and swelling resistance were systematically investigated. The incorporation of MWCNT-based fillers significantly enhanced filler–matrix interactions and promoted efficient stress transfer within the elastomer network. Tensile strength increased progressively with filler loading and reached an optimum at 5 phr. At this concentration, the tensile strength improved by approximately 99% for MWCNT-filled composites, 236% for HMIM-Br@MWCNT-reinforced systems, and 249% for EAC@MWCNT composites compared with the unfilled blend. The superior performance of the functionalized nanotubes was attributed to improved dispersion and stronger interfacial adhesion with the rubber matrix. However, elongation at break and rebound resilience decreased due to increased stiffness and restricted polymer chain mobility. Overall, the results demonstrate that surface-functionalized MWCNTs effectively reinforce EPDM/SBR-based elastomer systems.