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Polymers 2018, 10(8), 813; https://doi.org/10.3390/polym10080813

Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams

Institute for Polymers, Composites and Biomaterials, Italian National Research Council-Via Campi Flegrei 34, 80078 Pozzuoli, NA, Italy
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Received: 18 June 2018 / Revised: 11 July 2018 / Accepted: 20 July 2018 / Published: 24 July 2018
(This article belongs to the Special Issue Multi-functional Polymer Composites and Structures)
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Abstract

Poly(vinyl alcohol) foams, containing different amounts of microfibrillated cellulose, were prepared through an eco-friendly procedure based on high-speed mixing and freeze-drying. The effect of filler amount on cell shape and regularity was studied by scanning electron microscopy (SEM) and the evolution of the microstructure was assessed through dynamic cryo-SEM. Fourier Transformed Infrared Analysis and Differential Scanning Calorimetry measurements revealed the presence of hydrogen bond interaction among cellulosic filler and the matrix. The modulus and compression deflection of neat PVA were significantly improved by increasing the amount of microfibrillated cellulose content with respect to foams realised with pulp cellulose fibers. View Full-Text
Keywords: microfibrillated cellulose; poly(vinyl alcohol); foams; microstructure; properties microfibrillated cellulose; poly(vinyl alcohol); foams; microstructure; properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Gentile, G.; Cocca, M.; Avolio, R.; Errico, M.E.; Avella, M. Effect of Microfibrillated Cellulose on Microstructure and Properties of Poly(vinyl alcohol) Foams. Polymers 2018, 10, 813.

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