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Abstract <p>Polymer nanocomposites incorporating isotactic polypropylene (PP), butadiene–nitrile rubber (NBR), and nickel oxide–containing nanofiller stabilized in a high-density polyethylene matrix were produced through melt blending. Structural and morphological features of the materials were analyzed using X‑ray diffraction (XRD) and atomic force microscopy (AFM), whereas their thermal characteristics were examined by thermogravimetric analysis (TGA/DTA). Comprehensive mechanical testing, including tensile behavior and elongation at break, was conducted to assess the influence of nanoparticle addition on the functional performance of the composites. The introduction of nickel oxide nanoparticles markedly enhanced the thermal stability of the hybrid systems relative to the unmodified blend. This effect is attributed to improved phase compatibility and stronger interfacial interactions between the nanoparticles and the polymer phases. AFM observations further revealed that even a minimal nanofiller loading (1.0 wt %) serves as an efficient nucleating agent, stimulating the formation of a fine, highly ordered spherulitic microstructure. The emergence of this refined morphology contributes directly to the superior combination of mechanical and thermal properties observed in the developed nanocomposites.</p>

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Comprehensive Structural Characterization and Property Evaluation of Thermoplastic Elastomer Composites Reinforced with Nickel Oxide Nanoparticles

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • T. M. Gulieva,
  • N. I. Kurbanova,
  • G. S. Martynova,
  • F. V. Hajiyeva,
  • M. B. Muradov

摘要

Abstract

Polymer nanocomposites incorporating isotactic polypropylene (PP), butadiene–nitrile rubber (NBR), and nickel oxide–containing nanofiller stabilized in a high-density polyethylene matrix were produced through melt blending. Structural and morphological features of the materials were analyzed using X‑ray diffraction (XRD) and atomic force microscopy (AFM), whereas their thermal characteristics were examined by thermogravimetric analysis (TGA/DTA). Comprehensive mechanical testing, including tensile behavior and elongation at break, was conducted to assess the influence of nanoparticle addition on the functional performance of the composites. The introduction of nickel oxide nanoparticles markedly enhanced the thermal stability of the hybrid systems relative to the unmodified blend. This effect is attributed to improved phase compatibility and stronger interfacial interactions between the nanoparticles and the polymer phases. AFM observations further revealed that even a minimal nanofiller loading (1.0 wt %) serves as an efficient nucleating agent, stimulating the formation of a fine, highly ordered spherulitic microstructure. The emergence of this refined morphology contributes directly to the superior combination of mechanical and thermal properties observed in the developed nanocomposites.