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Volume 7 Journal of Material Sciences & Engineering Biopolymers Summit 2018
June 04-06, 2018
June 04-06, 2018 Osaka, Japan
7th World Congress on
Biopolymers and Polymer Chemistry
Reinforcing effect of poly-furfuryl alcohol on freeze-dried micro-fibrillated cellulose foams
Eva-Marieke Lems1, Stefan Winklehner1, Wolfgang Gindl-Altmutter1 and Christian Hansmann2
1University of Natural Resources and Life Sciences, Austria
2Wood K-Plus, Austria
Lightweight foams are of general interest in a diversity of applications because of their low density and high specific surface
area. Since there is a special interest to replace fossil-based polymers with polymers from renewable and biodegradable
resources, cellulose nanofibrils and lignocellulosic nanofibrils were used to prepare bio-based foams, which could be used for
insulating materials. For the preparation of the porous materials, lignin-free bleached wood pulp, termed MFC and micro-
fibrillated cellulose with 17% lignin content (MFLC) were used in aqueous suspensions. Furfuryl alcohol and maleic anhydride
were added to the slurry, resulting in ratios of fibrils to furfuryl alcohol of 0.00, 0.03, 0.06, 0.11, 0.20, 0.33 and 0.50. After
mixing with a high-shear blender, the mixtures were placed in an oven at 80 °C for 24 hours in order to polymerize the furfuryl
alcohol. Thereafter, foams were prepared by freeze-drying. Characterization of the foams was performed by Scanning Electron
Microscopy (SEM), ATR-Fourier Transform Infrared Spectroscopy (FTIR), Thermo-Gravimetric Analysis (TGA) and as well
as mechanical testing (e.g. compression tests). Furfuryl alcohol content was found to significantly affect the foam density.
Furthermore, mechanical properties were significantly higher for MFLC-based foams.
Biography
Eva-Marieke Lems has obtained her Master’s degree in Biomaterials Science and Technology from University of Natural Resources and Life Sciences, Austria in
2017. Presently she is pursuing her PhD with the thesis entitled “Lignocellulosic materials and their application possibilities”.
Eva-Marieke Lems et al., J Material Sci Eng 2018, Volume 7
DOI: 10.4172/2169-0022-C7-110