Knowledge and networking platform for sustainable electronics based on northern bioresources – SUSEN
The aim of the project is to promote knowledge, networking and joint-actions in cross-border research and innovation, and industrial activities related to sustainable electronic materials, components and applications by combining unique regional expertise of Oulu Univeristy , Luleå University of Technology and various northern companies. Especially, the project will focus on i) Providing knowledge on […]
Hygroexpansion in branch wood
Norway spruce branch wood is often chipped and used as forest fuel. To promote a better value chain for this byproduct, extensive material characterization is necessary. Using microscopic X-ray Computed Tomography and elastic image registration allows to investigate the hygroexpansion strains of branch wood.
A new XRF analysis develops high yield pulp with even sulfonate distribution at fiber level for improved renewable packaging
This project addresses the main challenges of using environmentally friendly, renewable packaging materials due to the widespread use of plastic in the packaging industry. This interdisciplinary project aims to address the uneven distribution of fiber sulfonation and softening in wood chips, which is currently poorly understood at a micro-level. After impregnation, the distribution of sulfonation […]
Microfiber
This project has addressed the major bottlenecks in using environmentally friendly, renewable packaging materials as plastic dominates the packaging industry. This interdisciplinary project aims to fundamentally resolve the degree of roughness, i.e. the amount of fiber sulfonation and softening prior to defibration, which is unknown at the micro level. Typically, the distribution of sulfonation in […]
PolyTree
The main goal of this project called PolyTree is to enable a closed-loop sustainable materials economy by making renewable polyesters from wood-based building blocks through innovative green chemistries. While biopolymers have been actively developed, their technical properties lack in respect to fossil-based materials. Moreover, biopolymers are not necessarily biodegradable – or recyclable. This project embraces […]
Modelling of conductive polymer-redox polymer supercapacitors
The Laboratory of Organic Electronics is developing cellulose base conductive polymer-redox polymer supercapacitors for large scale energy storage. This project focus on the modelling of such systems by coupling a recently developed theoretical model for organic mixed electronic-ionic conductors with the redox chemistry of wood-based redox polymer for energy storage applications. The aim is to […]
Methodologies providing new insights into the fundamentals of the pulping process
Today’s knowledge of what happens concerning the kinetics and other phenomena in the digester during the pulping process is mainly the result of the use of inductive methods. Based on these methods, generalised models have been formulated that are applied for process development as well as for industrial process optimisation. Recent studies (e.g., Mattsson et […]
Resource-efficient and non-toxic material flows from wood waste
With increasing focus on recycling, wood waste can increase its potential to generate secondary raw materials instead of incineration and landfilling. The quality of wood waste, as determined by the presence of material and mainly chemical impurities, is essential to ensure a high quality, clean and safe recycling loop for particleboards or for other emerging […]
Biobased polymers and fibers toward sustainable recyclable textiles
Biobased polymers and fibers toward sustainable recyclable textiles
Design of biochar from residual streams – influence of fuel and process parameters on biochar properties for water and soil applications
Biochar can be used in many applications, including water treatment and soil improvement. The properties of biochar are affected by the conditions during production. In this project, the influence on the properties of the biochar at different process conditions is investigated through the gasification of residual streams from both the forestry and agricultural sectors. The […]
Novel gels based on polysaccharides and polyphenols
This project will develop a new generation of functional hydrogels using cell wall polysaccharides and polyphenols from plant side streams, combining the material properties of the polysaccharides and the antioxidant properties of polyphenols. This project contributes to a circular biomass utilisation exploiting abundant by-products from agricultural production.
In-situ polymerization of functional polymers within the fiber cell wall
In this project, the fiber wall is modified to enable diffusion of functional monomers and subsequent polymerization and crosslinking within the wet-fiber wall resulting in a stiff and elastic fiber-composite. The fibers are modified in a fully biobased system and the end material is biocompatible and degradable.
