Improving Mechanical Performance of Self-Binding Fiberboards from Untreated Perennial Low-Input Crops by Variation of Particle Size
Lüders Moll,
Alexander Klein,
Sören Jannis Heidemann,
Georg Völkering,
Jessica Rumpf,
Ralf Pude
Affiliations
Lüders Moll
Institute of Crop Science and Resource Conservation, Faculty of Agriculture, University of Bonn, Campus Klein-Altendorf, Klein-Altendorf 2, D-53359 Rheinbach, Germany
Alexander Klein
Institute of Crop Science and Resource Conservation, Faculty of Agriculture, University of Bonn, Campus Klein-Altendorf, Klein-Altendorf 2, D-53359 Rheinbach, Germany
Sören Jannis Heidemann
Institute of Crop Science and Resource Conservation, Faculty of Agriculture, University of Bonn, Campus Klein-Altendorf, Klein-Altendorf 2, D-53359 Rheinbach, Germany
Georg Völkering
Institute of Crop Science and Resource Conservation, Faculty of Agriculture, University of Bonn, Campus Klein-Altendorf, Klein-Altendorf 2, D-53359 Rheinbach, Germany
Jessica Rumpf
Institute of Crop Science and Resource Conservation, Faculty of Agriculture, University of Bonn, Campus Klein-Altendorf, Klein-Altendorf 2, D-53359 Rheinbach, Germany
Ralf Pude
Institute of Crop Science and Resource Conservation, Faculty of Agriculture, University of Bonn, Campus Klein-Altendorf, Klein-Altendorf 2, D-53359 Rheinbach, Germany
Studies on self-binding hot-pressed fiberboards using agricultural byproducts aim to identify alternatives to scarce wood resources. Particle size and mixture significantly impact strength, although direct comparisons are difficult due to differences in study methods. We evaluated fiberboards made from the two perennial biomass crops Miscanthus and Paulownia and compared them to Picea (spruce), using five distinct particle size blends prepared from milled and sieved particles, respectively. The boards were evaluated for their modulus of elasticity, modulus of rupture, reaction to fire, water absorption, and thickness swelling. All specimens exhibited normal ignitability, as defined by Euroclass E according to EN13501-1. The results indicate that mechanical performance improves with increasing density, which correlates with higher proportions of finer particles. Notably, the finer Miscanthus blends and all Paulownia samples met the modulus of elasticity requirements of EN 622.
