Research Progress on Preparation and Performance of Bio-Degradation PLA/Graphene Nanocomposites

Abstract

PLA(Poly(lactic acid)) as a bio-degradation and environment-friendly polyester could be used in packing, medicine, engineering, electronics and other multiple applications. However, the low strength, inherent brittleness, low heat resistance, slow crystallizations, degradation rate and other weakness limited PLA’s applications. Graphene as an atomically thick sheet composed of carbon atoms could be used as nanofillers to modify PLA nanocomposites’ some properties to some extent. The manufacturing processes, techniques and corresponding results were reviewed in this paper and results did prove that properties of nanocomposites could improve with the adding of an appropriate content ratio of graphene with an appropriate manufacturing technique, so as to provide references and highlights for materials researchers and multiply its great applications in packaging, medicine, engineering and electronics.