Table 3: Average physical and mechanical performances of different composites.

CompositeDensityElastic modulus (Stretching) (MPa)

Synthetic thermoplastic + 30% glass fibres 1.1–1.682–220
Moulding high pressure4000–6000
Thermo setting Resin (polyester) + 30% glass fibres1.4–280–400
Natural based thermoplastic + 20% flax fibres1.2–1.4500