*2.4.4.1. Strain sweep tests*

To begin the study of the viscoelastic response of biocomposites, the linear viscoelastic region for the PP matrix was identified. To find this region, strain sweeps were carried out at a defined temperature. The geometry used to perform these tests was three-point bending. A strain sweep test takes successive measurements with an increase in the strain. For these experiments, the RSA-G2 was programmed with a strain between 0.001 and 1%; the frequency was constant at 1 Hz. Measurements were made at 0, 30, and 60°C.
