Combined Effect of Poly(hydroxybutyrate) and Plasticizers on Polylactic acid Properties for Film Intended for Food Packaging

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Title: Combined Effect of Poly(hydroxybutyrate) and Plasticizers on Polylactic acid Properties for Film Intended for Food Packaging
Authors: Arrieta, Marina Patricia | Samper, María D. | López, Juan | Jiménez, Alfonso
Research Group/s: Análisis de Polímeros y Nanomateriales
Center, Department or Service: Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología
Keywords: Poly(lactic acid) | Poly(hydroxybutyrate) | Blend | Barrier properties | Ductility
Knowledge Area: Química Analítica
Issue Date: Dec-2014
Publisher: Springer Science+Business Media New York
Citation: Journal of Polymers and the Environment. 2014, 22(4): 460-470. doi:10.1007/s10924-014-0654-y
Abstract: Poly(lactic acid) PLA, and poly(hydroxybutyrate) PHB, blends were processed as films and characterized for their use in food packaging. PLA was blended with PHB to enhance the crystallinity. Therefore, PHB addition strongly increased oxygen barrier while decreased the wettability. Two different environmentally-friendly plasticizers, poly(ethylene glycol) (PEG) and acetyl(tributyl citrate) (ATBC), were added to these blends to increase their processing performance, while improving their ductile properties. ATBC showed higher plasticizer efficiency than PEG directly related to the similarity solubility parameters between ATBC and both biopolymers. Moreover, ATBC was more efficiently retained to the polymer matrix during processing than PEG. PLA–PHB–ATBC blends were homogeneous and transparent blends that showed promising performance for the preparation of films by a ready industrial process technology for food packaging applications, showing slightly amber color, improved elongation at break, enhanced oxygen barrier and decreased wettability.
Sponsor: This work has been supported by the Spanish Ministry of Economy and Competitiveness (MAT2011-28648-C02-01 and MAT2011-28468-C02-02) M.P. Arrieta is Granted by Santiago Grisolía program (GRISOLIA/2011/007).
URI: http://hdl.handle.net/10045/44329
ISSN: 1566-2543 (Print) | 1572-8900 (Online)
DOI: 10.1007/s10924-014-0654-y
Language: eng
Type: info:eu-repo/semantics/article
Rights: The final publication is available at Springer via http://dx.doi.org/10.1007/s10924-014-0654-y
Peer Review: si
Publisher version: http://dx.doi.org/10.1007/s10924-014-0654-y
Appears in Collections:INV - NANOBIOPOL - Artículos de Revistas

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