The thermal degradation induced by our
processing step could explain such a difference. Properties obtained
for 3D printed/compressed samples and compressed filaments are in
the range of polypropylene (PP)/wood 30% [24,25] and high-density
polyethylene (HDPE)/wood 40% [26], but are lower than PHA/wood
20% (E = 3820 MPa ± 70 MPa and σ = 65.80 MPa ± 1.39 MPa [27]
and PLA/wood 20% [28], all manufactured by extrusion and injection
moulding