Direct and concentrated incorporation of CaCO3

Name: Direct and concentrated incorporation of CaCO3
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Bol This work investigates high-density polyethylene (HDPE) composites reinforced with calcium carbonate (CaCO¿), highlighting the importance of Masterbatches for efficient dispersion of CaCO¿ in the polymer matrix. The preparation of the Masterbatches resulted in a homogeneous mixture, optimizing processing conditions and stabilizing the mechanical and thermal properties of the composite, even with high filler ratios.The addition of CaCO¿ up to 20% via a concentrate improved the flowability index, facilitating composite processing, while maintaining a stable Vicat temperature, a sign of uncompromised thermal resistance. Infrared analyses confirmed a homogeneous dispersion of CaCO¿ in the polymer matrix.Mechanically, composites with up to 15% CaCO¿ via concentrate retained satisfactory properties while improving processability. However, at 20%, a reduction in ductility is observed, although stiffness and mechanical strength remain preserved. This indicates that the composite becomes less deformable before fracture at high loading rates.

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This work investigates high-density polyethylene (HDPE) composites reinforced with calcium carbonate (CaCO¿), highlighting the importance of Masterbatches for efficient dispersion of CaCO¿ in the polymer matrix. The preparation of the Masterbatches resulted in a homogeneous mixture, optimizing processing conditions and stabilizing the mechanical and thermal properties of the composite, even with high filler ratios.The addition of CaCO¿ up to 20% via a concentrate improved the flowability index, facilitating composite processing, while maintaining a stable Vicat temperature, a sign of uncompromised thermal resistance. Infrared analyses confirmed a homogeneous dispersion of CaCO¿ in the polymer matrix.Mechanically, composites with up to 15% CaCO¿ via concentrate retained satisfactory properties while improving processability. However, at 20%, a reduction in ductility is observed, although stiffness and mechanical strength remain preserved. This indicates that the composite becomes less deformable before fracture at high loading rates.

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