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6. Polylactic acid–agave fiber biocomposites produced by rotational molding: A comparative study with compression molding.

Author

Cisneros‐López, Erick Omar, Pérez‐Fonseca, Aida Alejandra, González‐Núñez, Rubén, González‐García, Yolanda, Robledo‐Ortíz, Jorge Ramón, Ramírez‐Arreola, Daniel Edén, and Rodrigue, Denis

Subjects
*POLYLACTIC acid, *AGAVES, *FIBROUS composites, *INJECTION molding, *BIODEGRADABLE materials
Abstract

In this work, the possibility to produce polylactic acid (PLA) and agave fiber biocomposites by dry‐blending and rotational molding was studied. The samples were also produced by compression molding to compare the effect of processing conditions on the biocomposites properties. In particular, the effect of fiber content (0–40 wt.%) on morphology, density, porosity, thermal (DSC) and mechanical properties (tension, flexion, impact and hardness) was studied. Also, a complete analysis of the internal air temperature profiles was performed to determine the thermal behavior of PLA during the rotational molding cycle. The results showed that rotomolded biocomposites were successfully produced but had higher porosity than compression molded ones due to the absence of pressure while forming. This led to different level of mechanical properties reduction as fiber content increases. Nevertheless, for compression‐molded biocomposites, crystallinity (30% at 30 wt.%), tensile modulus (14% at 30 wt.%) and impact strength (71% at 40 wt.%) improvements were obtained compared to neat PLA. [ABSTRACT FROM AUTHOR]

Published
2018
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