Microfibrillated cellulose with sizing for reinforcing composites with LDPE |
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Authors: | Amaury Lepetit Richard Drolet Balázs Tolnai Daniel Montplaisir Romain Lucas Rachida Zerrouki |
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Institution: | 1.Laboratoire de chimie des substances naturelles,Université de Limoges,Limoges,France;2.Centre de recherche sur les matériaux renouvelables,Université du Québec à Trois-Rivières,Trois-Rivières,Canada;3.Kruger Biomaterials Inc,Montréal,Canada;4.SPCTS - UMR 7315,Université de Limoges,Limoges,France |
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Abstract: | Microfibrillated cellulose (MFC) fibers were acylated by the sizing agent, alkenyl succinic anhydride (ASA) reagent in an aqueous medium, by simple impregnation. The chemical modification was confirmed by Fourier transform infrared spectroscopy and solid-state 13C NMR. All the samples were combined with low-density polyethylene and the morphology, thermal properties, mechanical properties and water absorption behavior of the ensuing composites were investigated. The chemical modification of the MFC with ASA improved the interfacial adhesion with the matrix and hence the mechanical properties of the composites while decreasing their water uptake capacity. In addition, it was shown that the degree of substitution strongly influenced the performance of the composites. |
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