A multipurpose grade of polylactide Ingeo 2500 HP by Natureworks (Minnetonka, MN, USA), with Melt Flow Index of 8 g/10 min (210 °C, 2.16 kg), a density of 1.24 g/cm3 and d-isomer content <0.5%, was used as the matrix of the composites.
Linseed cake (LC) was obtained from a local Polish supplier (Laboratorium Biooil, Zielona Góra, Poland). To evaluate the influence of oil content on the composite’s properties, the LC was partially defatted to obtain 5 grades with 0.9, 4.6, 17.7, 30.4 and 39.8 wt% of natural oil, respectively. The defatting procedure consisted of mechanical mixing of the linseed cake with acetone, filtration and drying. The fillers were then screened through a 630 μm sieve. A more comprehensive description of the preparation of linseed cake with various oil content can be found in our previous study [43 (link)]. The natural oil extracted from linseed cake was also examined after removing the acetone by evaporation.
Linseed cake (LC) was obtained from a local Polish supplier (Laboratorium Biooil, Zielona Góra, Poland). To evaluate the influence of oil content on the composite’s properties, the LC was partially defatted to obtain 5 grades with 0.9, 4.6, 17.7, 30.4 and 39.8 wt% of natural oil, respectively. The defatting procedure consisted of mechanical mixing of the linseed cake with acetone, filtration and drying. The fillers were then screened through a 630 μm sieve. A more comprehensive description of the preparation of linseed cake with various oil content can be found in our previous study [43 (link)]. The natural oil extracted from linseed cake was also examined after removing the acetone by evaporation.
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