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<p>New regulations are promoting the production of biobased bead foams to increase sustainability. In this work, expanded biobased propylene (BioEPP) reinforced with nanoparticles are produced and characterized. Bead foams with apparent densities ranging 24 to 34&#xa0;kg/m<sup>3</sup> and homogeneous cellular structures are obtained with BioEPP and the nanocomposites with nanoclays, while the samples with cellulose nanocrystals show higher densities. The BioEPP bead foams are also molded into parts of 105&#xa0;kg/m<sup>3</sup> to evaluate their compressive strength. Results support that this new bead foam can be a good candidate for the replacement of fossil-based bead foams by a more sustainable alternative.</p>

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A New Expanded Bead Foam Based on Bio-polypropylene (BioEPP): Fabrication and Reinforcement with Nanoparticles

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Ismael Sánchez-Calderón,
  • Mercedes Santiago-Calvo,
  • Esteban Cañibano,
  • María Teresa Fernández,
  • Alberto López-Gil,
  • Miguel Ángel Rodríguez-Pérez,
  • Victoria Bernardo

摘要

New regulations are promoting the production of biobased bead foams to increase sustainability. In this work, expanded biobased propylene (BioEPP) reinforced with nanoparticles are produced and characterized. Bead foams with apparent densities ranging 24 to 34 kg/m3 and homogeneous cellular structures are obtained with BioEPP and the nanocomposites with nanoclays, while the samples with cellulose nanocrystals show higher densities. The BioEPP bead foams are also molded into parts of 105 kg/m3 to evaluate their compressive strength. Results support that this new bead foam can be a good candidate for the replacement of fossil-based bead foams by a more sustainable alternative.