Poly(lactic acid)-Based Composites Containing Natural Fillers : Thermal, Mechanical and Barrier Properties
Articolo
Data di Pubblicazione:
2014
Citazione:
Poly(lactic acid)-Based Composites Containing Natural Fillers : Thermal, Mechanical and Barrier Properties / D. Battegazzore, J. Alongi, A. Frache. - In: JOURNAL OF POLYMERS AND THE ENVIRONMENT. - ISSN 1566-2543. - 22:1(2014), pp. 88-98. [10.1007/s10924-013-0616-9]
Abstract:
Natural filler/poly(lactic acid)-Based composites have been prepared by melt blending in order to investigate the resulting thermal, mechanical, and oxygen permeability properties. To this aim, several wastes or by-products (namely, cellulose fibers, wood sawdust, hazelnut shells, flax fibers, corn cob and starch) have been used, ranging from 10 to 30 wt%. The presence of these fillers is responsible of a slight reduction of the polymer degradation temperature in nitrogen as well as of a significant increase of the storage modulus as a function of the filler content. The experimental data obtained by dynamic mechanical analysis have been mathematically fitted, employing three micromechanical models (namely, Voigt, Reuss and Halpin-Tsai). Furthermore, the presence of cellulose or starch has turned out to significantly reduce the polymer oxygen permeability. Finally, in order to fully assess the feasibility of such materials, an economic analysis has been carried out and discussed.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Biocomposites; By-products; Mechanical characterization; PLA; Wastes; Environmental Engineering; Polymers and Plastics; Materials Chemistry
Elenco autori:
D. Battegazzore, J. Alongi, A. Frache
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