, Volume 25, Issue 4, pp 2419–2434 | Cite as

Bilayer biocomposites based on coated cellulose paperboard with films of polyhydroxybutyrate/cellulose nanocrystals

  • I. T. Seoane
  • L. B. Manfredi
  • V. P. CyrasEmail author
Original Paper


In this paper, a biodegradable bilayer nanocomposite based on reinforced polyhydroxybutyrate (PHB) with cellulose nanocrystals (CNC) and cellulose paperboard was prepared. In order to obtain optimal properties two different processing methods were studied: casting and compression molding. Compression molding was selected as the most effective technique to achieve a continuous layer of PHB covering the entire surface of the paperboard. Mechanical and barrier properties of the composites were optimized, using the least amount of PHB due to its high cost compared to fossil-derived polymers. Then, the bilayer nanocomposite was produced according to the selected method and the least PHB proportion, demonstrating that PHB/CNC coating overcomes water sensibility of the cellulose paperboard and exhibited a performance enhancement without detrimental effect of the pristine PHB and paperboard properties. It was demonstrated that PHB and PHB/CNC have the potential to replace non-renewable polymers as fully bio-based materials, obtaining paperboard coatings with environmental advantages, such as non-toxicity, high recyclability and biodegradability.


Poly(3-hydroxybutyrate) Cellulose paperboard, Cellulose nanocrystals Bilayer biocomposite 



The authors acknowledge the financial support of CONICET (PIP 0527) and Universidad Nacional de Mar del Plata.


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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA)UNMdP, CONICET, Facultad de IngenieríaMar del PlataArgentina

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