Lignin as Green Filler in Polymer Composites: Development Methods, Characteristics, and Potential Applications
Figure 12
(a) Diagrammatic illustration of the crystal phase of lignin-cellulose composite [187] (Copyright @ 2015 Wiley periodicals) and (b) XRD pattern for lignin-based biocomposite [227] (Copyright @ 2019 MDPI under CC BY 4.0).