Résumé
Due to the rising amount of plastic waste generated each year, multiple questions are emerging about theirharmful long-term effects on the environment, the eco-systems and human health. One possible strategy tomitigate these issues is to substitute conventional plastics by materials fully biodegradable in naturalconditions, such as poly(3- hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). In order to decrease the overall costand environmental impact of PHBV-based materials while modulating their technical performance, PHBV canbe combined with lignocellulosic fillers. In this dataset, a total of 88 formulations of PHBV-based biocompositesdistributed over 5 interdisciplinary projects has been collected, involving computer scientists, data scientistsand biomass processing experts for food and bio-based material production. Available data concern thetechnical process descriptions, including the description of each step and the different observations measured.This dataset presents two characterizations for both the lignocellulosic fillers and the biocomposites.Lignocellulosic particles characterized and used as fillers for the production of biocomposites were eitherpurchased as commercial grades (e.g. cellulose and wood fibers) or produced by dry fractionation of rawbiomasses (e.g. wheat straw, vine shoots, olive pomace, and green park and garden waste). They werecharacterized in terms of biochemical composition (cellulose, lignin, hemicellulose and ashes contents) usingbiochemical analyses, and morphology (apparent median diameter and span value) measured by lasergranulometry. On another hand, biocomposites were produced following two processing steps: first, acompounding step to mix lignocellulosic particles with the PHBV polymer matrix; and then, a shaping step toget either thermopressed films or injection moulded samples. Biocomposites were characterized in terms ofthermal properties (melting and crystallization temperatures) assessed by differential scanning calorimetry(DSC) analysis, thermal stability (temperatures of thermal degradation) assessed by thermogravimetric analysis(TGA), mechanical properties (Young’s modulus, strain at break and stress at break) assessed by tensile testsand water vapour permeability