and resin
impregnation of a dried nanofiber network [15–18]. For
larger scale production these methods are, however, slow
and expensive. Extrusion compounding is one of the most
promising methods for industrial processing due to easy
scale-up and the possibility of further molding of the materials
[9,19,20]. Yet there are only few published studies on
extrusion processing of cellulose nanocomposites reinforced with cellulose nanofibers [20–22], which is why
more research is needed