Ligna 2019

•••8••• Innovationen Hybrid materials with a dynamic form Sustainable mobility through wood-based lightweight construction solutions The Fraunhofer WKI exhibits at Ligna 2019 illustrate the diverse possibilities for the industrial uti- lisation of the natural product wood, from the production of future-oriented hybrid materials through to the recycling options. In Hanover, the scientists will be presenting their extensive exper- tise in the research into the re- newable raw material wood and other botanicals for industrial ap- plications, thereby highlighting new commercial potential for the wood-based materials and auto- motive industries. Renewable raw materials With their wood-based light- weight construction solutions, the researchers at the Fraunhofer WKI are pursuing the objective of introducing renewable raw ma- terials into structural application within the mobility sector. Exhib- its include a seat shell as well as a seat which is attached to a struc- tural component made from a metal/wood layered composite. The structural component fulfills the technical-structural and crash- relevant requirements for appli- cation in vehicles. The moulded parts made from multi-layer ve- neer composites are lighter than conventional materials, exhibit a high rigidity, and lead overall to lower production costs. The ex- hibits on display are therefore an environmentally friendly and eco- nomically interesting alternative for the vehicle industry (e.g. auto- motive, rail, shipping). New insulation and buildingmaterials At the Fraunhofer WKI, scientists are developing innovative recy- cling techniques for the recovery of balsa wood and plastic foam from wind-power rotor blades. The recovered materials are then used to produce new, improved insulation and building materials. The innovative aspect lies in the fact that the usable sections con- taining the balsa wood are sepa- rated during dismantling of the rotor blade at its original location. This enables the separate process- ing and high-quality recycling of the materials. Sustainable approach A further advantage is that the ro- tor blades are not incinerated, as was previously the case, thereby losing rawmaterials in large quan- tities, but are instead implement- ed as a “material source” for new products. The recyclates are used to produce new, improved insula- tion and building materials, such as insulation mats and “light” extruded floorboards made from wood polymer composites (WPC). The products and the re- cycling procedure are relevant for, amongst others, wind-turbine operators, recycling companies, WPC manufacturers, insulation material manufacturers, wood- based materials manufacturers and the packaging industry. In wood research, light and fluo- rescence microscopy is an indis- pensable tool. Researchers at the Fraunhofer WKI determine, for example, the quality of the bonding in composite materials and analyse fibrous materials and wood foams. Furthermore, they also perform damage analyses on, amongst other items, bonds and coatings, and carry out re- search into historical materials. At Ligna, experts will be presenting the spectrum of different sam- ples, including the exhibits on the Fraunhofer-WKI stand, under the microscope. How can sustainable materials and construction methods be ap- plied in lightweight construction? How can the ecological footprint be reduced in boatbuilding? Is it possible to transfer proven boat- building methods to other sec- tors? Do the new materials fulfill the structural, processing and cost requirements? These and other questions were addressed in detail by researchers from the Fraunhofer WKI, together with designers from the Institute for Design Research at the Braun- schweig University of Art. The re- sults of this cooperation project will be presented at this year’s Ligna in Hanover. On display are three examples of rational pro- duction using sustainable materi- als in boatbuilding and the bicycle industry: a pedal-boat with pe- delec drive, the rib cross-section from a racy 22 m sailing catama- ran, and a pedelec delivery bicy- cle, Fraunhofer WKI announced. Metal-wood layered composite for application in structural assemblies Photo: Fraunhofer WKI / Manuela Lingnau Impressum LIGNA 2019 Verlag: CONNEX Print & Multimedia AG Große Packhofstraße 27/28 30159 Hannover Telefon: +49 511 830936 Telefax: +49 511 56364608 E-Mail: connex@die-messe.de Internet: www.die-messe.de Auflage IVW-geprüft. Auflagengruppe: P Redaktion: Martin Braun Verantwortlich für den Anzeigenteil: Tina Wedekind Druck: Berliner Zeitungsdruck GmbH, 10365 Berlin MESSEJOURNAL DIE MESSE Continued from page 1 Messeneuheit POLYTECHNIK ® Biomass Energy • Holz- u. Biomassefeuerungsanlagen (von 300 kW bis 30.000 kW) • Elektrische Energie aus Biomasse (von 200 kWel bis 20.000 kWel) • Nah-u. Fernwärmefeuerungen LIGNA • Halle 25 • Stand Nr. K22! POLYTECHNIK Luft- und Feuerungstechnik GmbH, A-2564 Weissenbach (AUSTRIA), Hainfelderstr. 69 - 71 Tel.: 0043/2672/890-0, Fax: 0043/2672/890-13 E-Mail: office@polytechnik.at, Internet: www.polytechnik.com • Vergasungs- und Verkohlungsanlagen