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<p>In this research, a novel investigation explored the enhancement of nanocomposites by blending styrene-butadiene rubber/acrylonitrile butadiene rubber (SBR/NBR) with both unmodified and [3-(2,3-Epoxypropoxy)-propyl]-trimethoxysilane-modified halloysite nanotubes (pHNTs and mHNTs). The study aimed to improve interfacial interactions and refine the SBR/NBR phase microstructure, leading to superior mechanical properties. Using a two-roll mill, mHNTs were incorporated at varying levels (0–10 phr). Results demonstrated reduced curing times (optimum cure time—t<sub>90</sub>, scorch time—t<sub>s2</sub>), increased maximum torque (M<sub>H</sub>), and substantial enhancements in tensile strength (up to 182%) and abrasion resistance (optimized at 6 phr mHNTs). Additionally, swelling resistance improved with higher mHNTs content, highlighting effective dispersion and interactions of HNTs within the SBR/NBR matrix.</p>

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Impact of halloysite nanotubes on the curing characteristics, mechanical performance, and swelling resistance of SBR/NBR nanocomposites

  • 期刊论文

  • 发表日期：

    2025年2月11日

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  • K Karthikeyan,
  • S Vishvanathperumal,
  • Ajith Damodaran

摘要

In this research, a novel investigation explored the enhancement of nanocomposites by blending styrene-butadiene rubber/acrylonitrile butadiene rubber (SBR/NBR) with both unmodified and [3-(2,3-Epoxypropoxy)-propyl]-trimethoxysilane-modified halloysite nanotubes (pHNTs and mHNTs). The study aimed to improve interfacial interactions and refine the SBR/NBR phase microstructure, leading to superior mechanical properties. Using a two-roll mill, mHNTs were incorporated at varying levels (0–10 phr). Results demonstrated reduced curing times (optimum cure time—t90, scorch time—ts2), increased maximum torque (MH), and substantial enhancements in tensile strength (up to 182%) and abrasion resistance (optimized at 6 phr mHNTs). Additionally, swelling resistance improved with higher mHNTs content, highlighting effective dispersion and interactions of HNTs within the SBR/NBR matrix.