Rheological Behavior of Polylactic Acid Solution and Physical Properties of Resulting Film Using Cellulose Nanocrystals
Vol. 57, No. 6, pp. 347-353,
Dec. 2020
10.12772/TSE.2020.57.347
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Abstract
Polylactic acid (PLA), a polymer synthesized from biomass, is biodegradable and
sustainable. PLA has limited applications, owing to its poor mechanical properties. In this
study, cellulose nanocrystals (CNCs) were introduced into a PLA solution to improve the
mechanical properties of the composite film without sacrificing biodegradability. The dispersion
of CNCs was investigated based on the rheological behavior of the solution. The
uniform dispersion of CNCs decreased the solution viscosity and enhanced the mechanical
performance of the resulting film. When the CNC content was 2 wt%, the thermal decomposition
onset temperature of the film improved.
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