A decreasing trend of strength with filler content was also observed—especially for bacterial nanocellulose composites—attributed to an increasing content of poorly dispersed filler.
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Biobased Composites of Poly(Lactic Acid) Melt Compounded with Bacterial and Vegetal Nanocelluloses Incorporated through Different Strategies.
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Regardless of the type of nanocellulose used, most composites presented higher stiffness values than neat PLA, and an increasing trend of these values with nanocellulose content was observed as a result of the introduction of stiff fillers into a more compliant matrix [ 14 ].