Tensile properties such as tensile strength, elongation at break,
and Young modulus of the composites made from lignocelluloses
fillers (RH and BRH), PLLA/starch blends at different filler
loadings are shown in Figure 3 and Table II.
The RH–PLLA–
starch composites have shown higher strength compared to the
BRH–PLLA–starch composites.
As the bleaching process
removed the lignin content in the RH, therefore, one may conclude
that lack of lignin in the BRH is the main reason for the
observed behavior.
The tensile strength of RH–PLLA–starch
composites is slightly increased by increasing the filler loading
(RH) and similar trend, that is, enhancement of tensile strength
on filler loading, can be seen in the case of adding BRH filler.