Reference projects

The wood constituent lignin accrues in large quantities as a by-product of pulp and paper production. In collaboration with industrial partners, we are developing a high-performance bio-foam from lignin. In order to demonstrate its market potential, the lignin foam is being processed into molded parts for the automotive industry within the scope of the project. These parts are to be utilized as the core in car bumpers. Petrochemical foam materials could also be replaced by climate-friendly lignin foams in numerous other applications - for example in packaging, insulation materials or as a core material in wind-turbine rotor blades.

Particle boards are a sustainable and inexpensive construction material for houses and furniture. They can be produced from regionally available wood residues and recycled waste wood. Through this research project, particle boards will become even more sustainable. In collaboration with industrial partners, we are developing particle boards that are produced using a new kind of adhesive which should not contain any health-critical formaldehyde and which consists entirely of biogenic raw materials. Furthermore, we are conducting tests to determine whether the particle boards can be produced using alternative types of wood, which will be increasingly available in the future as a result of forest restructuring.

Heating systems must be insulated in accordance with the German law on building-energy efficiency. For system components such as pump groups, valves or fittings, prefabricated insulation boxes made from polymer foams are available. These can be easily installed and subsequently removed. However, as they are of normal or low flammability, they cannot be fitted everywhere. Insulation using non-combustible materials has been laborious up until now. In collaboration with industry partners, we are developing a practicable solution: insulation boxes made from non-combustible foam that can be overhauled and recycled. Heating systems in building areas with increased fire-protection requirements could, as a result, be installed, maintained and modified more quickly.

Protecting moorlands, avoiding greenhouse-gas emissions and, at the same time, extracting valuable raw materials for house construction and horticulture: That is the aim of this model and demonstration project, which is being implemented in two model regions in the districts of Emsland and Cuxhaven by a total of 13 partners from research and industry. The task of the Fraunhofer WKI is to thereby develop, manufacture and test construction products on the basis of cattails in close collaboration with the Fraunhofer IBP.

Small city apartments, house moves, and changes in living and working circumstances: These days, furniture has to fulfill demanding requirements in terms of functionality and flexibility. In collaboration with research partners and companies, we develop furniture that meets these requirements and is furthermore sustainable. The starting point is the new and further development of compounds, foams and imitation leather made from lignin - a plant-based residual material from industry. The aim is the creation of modular, lightweight furniture that can be easily disassembled, transported, repaired and repurposed. In other words, the service life of the material should be as long as possible. A further focus of the project is the recyclability of the furniture - from entire assemblies through to the single-type separation and preparation of the individual materials. Possibilities for the transfer of materials to other areas of application – such as the fashion industry and the motorhome sector – are also being considered.

More and more houses are being insulated by means of external thermal insulation composite systems (ETICS). Whilst this saves energy, the façades are increasingly being colonized by algae. This is not only detrimental to the aesthetics but also to the diffusion capacity of the surface coating. Moisture damage can thereby result. In order to reduce algae growth, façade coatings containing biocides have often been used up to now. The problem here is that the biocides are leached out within a few years. Consequently, environmental pollution and increasing algae growth on the façade can occur. In collaboration with industry partners, we are developing a bio-based, weather-resistant façade paint that will physically prevent microbial growth. It could provide ETICS façades with long-term protection against algae - without any biocides whatsoever.

Houses made of wood are good for the climate and conserve finite resources such as concrete or steel. In particular, the construction of multi-story buildings and entire city quarters in timber construction offers great potential for achieving climate protection targets and strengthening the construction industry with a view to the future. By international standards, however, timber construction in Germany is still in its infancy. We want to change that. Together with project partners, we are investigating and optimizing the networking and cooperation of the players along the »urban timber construction« value chain, using the Berlin-Brandenburg region as an example. In this project, we at the Fraunhofer WKI are investigating the regionally available pine-wood product range in order to produce high-quality timber construction elements from it. The aim is to support metropolitan regions on their way to climate neutrality and to make the German construction industry fit for the future – based on renewable raw materials and closed, efficient resource cycles

Aerogels are highly porous, light-as-a-feather materials with extraordinary properties: extremely low thermal conductivity, low sound transmission, and a high adsorption effect on volatile organic compounds. They are excellently suited both for lightweight construction and as filter materials, and are therefore considered a material of the future. In collaboration with research and industrial partners, we are developing a process for the production of aerogels on the basis of waste wood. From the aerogels, we are creating prototypes of insulation materials and pollutant-adsorbing indoor-air filters that can be utilized in buildings and vehicles. Furthermore, transfer possibilities to applications in exhaust-gas cleaning are to be demonstrated. A further project objective: The raw materials required to manufacture the aerogels are to be recovered from the products. With this sustainable material solution, we are supporting health protection as well as the fight against climate change and resource scarcity.

Lightweight cars, trucks and trains made from renewable raw materials can contribute towards the protection of resources and the climate. As a joining technology for the production of lightweight components, adhesive bonding offers particular advantages and is therefore increasingly gaining in importance. In collaboration with research and industry partners, we are developing a bio-based, switchable PU adhesive for large surfaces. This should enable the production of panel-shaped laminated materials made from wood or wood and metal, which are not formed into 3D components until a later stage in the process chain. This opens up new possibilities for the flexible, economically efficient production of sustainable lightweight vehicles as well as for repair purposes and recycling. The special feature: Thanks to the re-detachable adhesive bond, it should be possible to separate the wood and metal according to type and with as little damage as possible.

Flexible wood-fiber mats are ideally suited for the thermal insulation of buildings - for example as between-rafter insulation or as a filling material for thermal-insulation bricks. Until now, wood-fiber insulation materials have been manufactured primarily from softwood. As a result of climate change, this will be available in significantly smaller quantities in the future. In order to secure the raw-material base for wood-fiber insulation materials and to expand their application potential, we are working in collaboration with industrial partners on the development of insulation mats and novel wood-foam granules made from beech-wood fibers. The project objective is the establishment of a pilot plant for material production. In this way, we are creating a sustainable perspective for the construction industry as well as a high-quality utilization possibility for beech wood, which will be increasingly available in the future due to climate-related forest restructuring. In order to exploit the resource “beech wood” even more efficiently, it would also be conceivable to utilize the new wood-foam granules as a filler for transport packaging.