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M21 resin benefits from toughening low-volume percentage rubber particles with a mean diameter of 20–40 μm. Hexcel® M21 curing data sheet. Sourced from Reference [16]. ILSS—interlaminar shear strength.
| Ply Mass | Ply Thickness | Fibre Volume Fraction | ILSS |
|---|---|---|---|
| 305 g/m2 | 0.262 mm | 56.6% | 60 MPa |
| Tensile strength | Tensile modulus | G Ic | G IIc |
| 3039 MPa | 172 GPa | 765 J/m2 | 1250 J/m2 |
