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Granulou Biocomposite – Summary of Material Advantages
1. Enhanced Impact Resistance
• Unnotched Charpy Impact Strength: 8.0 kJ/m² vs. 3–6 kJ/m² for virgin PP
• Notched Charpy: 4.0 kJ/m² vs. 2–4 kJ/m²
• Benefit: Exceptional resistance to impacts and cracking makes it ideal for
industrial and outdoor applications where durability is critical.
2. Low Shrinkage for Precise Manufacturing
• Shrinkage: 0.6% vs. 1–2% for virgin PP
• Benefit: Improved dimensional stability during molding leads to higher
production quality, less waste, and cost efficiency.
3. Good Processability
• Melt Flow Index (MFI): 3.1 g/10 min
• Benefit: Material flows well during extrusion and injection molding, enabling
smooth industrial-scale production.
4. Competitive Stiffness with Flexibility
• Young’s Modulus: 1300 MPa (slightly lower than virgin PP)
• Benefit: Slightly more flexible than standard PP, which can reduce brittleness
while maintaining adequate structural rigidity.
5. High Density – Opportunity for Tailored Properties
• Density: 1.3 g/cm³ vs. 0.9 g/cm³ for virgin PP
• Benefit: Likely due to fillers or functional additives, enabling customization for
specialized applications (e.g., weight-dependent components, reinforced structures).
6. Adequate Thermal Performance
• HDT: 94/72°C (0.45/1.8 MPa)
• Benefit: Sufficient for most industrial and outdoor applications; slight trade-off
from virgin PP compensated by enhanced impact and manufacturing properties.
Key Takeaway
Granulous’ material combines high impact resistance, dimensional stability, and adaptable
performance—making it a premium, industrial-ready alternative to virgin polypropylene
with clear differentiation for sustainable, high-performance applications.
