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<p>The article presents the results of thermal, rheological, and structural studies of a recycled polystyrene and recycled polyethylene blend by modifying it with maleinated styrene-ethylene-butylene-styrene thermoplastic elastomer as a compatibilizer. Thermal analysis showed that the introduction of a compatibilizer did not significantly affect the value of the glass transition temperatures of the composites, which indicates their stability. Thermogravimetric analysis showed an increase in the temperature of the onset of thermal degradation with the introduction of 2.5 wt.% of maleinated thermoplastic elastomer from 307 to 321&#xa0;°C. Scanning electron microscopy images confirmed an improvement in the uniformity of the resulting blend structure with the introduction of maleinated thermoplastic elastomer. Blends of the studied recycled polymers with the introduction of a compatibilizer have a 3.5-fold increased impact strength compared to non-compatibilized blend.</p> Graphical Abstract <p></p>

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Effect of SEBS-g-MA on recycled PS/HDPE blend miscibility

  • 期刊论文

  • 发表日期：

    2025年3月25日

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  • Davidyants Nikita G.,
  • Irina Yu. Gorbunova,
  • Stepan V. Polunin,
  • Tatyana P. Kravchenko,
  • Alexey V. Khoroshilov

摘要

The article presents the results of thermal, rheological, and structural studies of a recycled polystyrene and recycled polyethylene blend by modifying it with maleinated styrene-ethylene-butylene-styrene thermoplastic elastomer as a compatibilizer. Thermal analysis showed that the introduction of a compatibilizer did not significantly affect the value of the glass transition temperatures of the composites, which indicates their stability. Thermogravimetric analysis showed an increase in the temperature of the onset of thermal degradation with the introduction of 2.5 wt.% of maleinated thermoplastic elastomer from 307 to 321 °C. Scanning electron microscopy images confirmed an improvement in the uniformity of the resulting blend structure with the introduction of maleinated thermoplastic elastomer. Blends of the studied recycled polymers with the introduction of a compatibilizer have a 3.5-fold increased impact strength compared to non-compatibilized blend.

Graphical Abstract