VTT – Recycled wood and fibers

VTT has expertise and solutions based on recovered wood and fibres. VTT has worked for example with the construction and demolition wood wastes and wastepaper. VTT’s core competences including purification, fractionation, grinding, fibre treatments, product manufacturing technologies and characterization in order to upgrade recovered wood and fibres to be used in high performance products. VTT can utilize mechanical, chemical and enzymatic treatments as well as dissolution technology in fibre production phase. The main product manufacturing technologies used for recycled wood and fibre based materials are water forming, foam forming, extrusion, injection moulding and spinning techniques and the target product sectors are printing papers, packaging boards, nonwovens, acoustic panels, thermal insulations and wood-plastic composites. VTT has versatile laboratory and pilot scale devices to perform experiments needed. Characterisation possibilities cover whole production chain from raw material quality to end product properties.  Real-time monitoring and online analysis of processes can also be done. Different kinds of simulation and modelling tools as well as techno-economic and environmental analyses complement the experimental work.