PLA-fMWCNT Bionanofilms With High Modulus And Great Properties To Apply In Packaging And Biomedicine

PAULA GONZÁLEZ SELIGRA; MELISA LAMANNA ; LUCÍA FAMÁ

Procedia Materials Science

elsevier

Año: 2015 vol. 8 p. 383 - 390

2211-8128

Physicochemical properties of films based on PLA and reinforced with functionalized carbon nanotubes (fMWCNT), wasinvestigated. The filler was functionalized in order to achieve its good dispersion in the matrix. Fenton reaction was carried outand subsequently a reaction with thionyl chloride and with triethylene glycol was performed. Excellent dispersion of the filler inthe PLA matrix was observed for composites with filler concentrations till 0.10 wt%. Nanocomposites showed an importantincrease in the Young?s modulus (almost 50 %) and cristallinity till 20 % when carbon nanotubes were added. UV-Vis spectraindicated that all the films are transparent in the UV-visible range.