This project aims to develop novel experimental techniques for generating rapid compression and expansion waves in liquids and explore using compression and tension pulses to disintegrate, homogenize, and fibrillate cellulose fibers efficiently to contribute to the more sustainable production of novel nano- and micro-cellulose materials.
Dynamic Compression/Tension for Cellulose Treatment Läs mer »
POR-BioSorb, a collaboration of European Universities, SMEs, and Research Institutes, aims to introduce the use of bio-based, energy-saving and climate-friendly porous materials with high absorption capacity. By using low-cost polymers from various biomass sources and advanced green production technologies developed in the consortium, this project will develop environmentally friendly alternatives to current materials that are
POR-BioSorb: PORous Bio-based and high-functional sorbent alternatives Läs mer »
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
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
Methodologies providing new insights into the fundamentals of the pulping process Läs mer »
Advanced cellulose-based biocomposites are bio-degenerable mateirals for a sustainable material. These materials generally have complicated and highly heterogeneous optical and mechanical properties. The developments and applications of such materials demand a thorough investigation of their physical properties and their structure-property relationship. This project aims to characterize the optical and mechanical properties using experiments and simulation.
Physical properties characterization of cellulose biocomposites Läs mer »
In the last few decades, significant interest has arisen in the use of cellulose in conjunction with electrically conductive materials for a wide range of applications, from energy storage and actuators to sensors. The primary driving force for selecting cellulosic materials stems from their intrinsic and extrinsic properties, such as high flexibility, processability, chemical stability,
Electroactive Cellulose Composites Towards Future Green Devices Läs mer »
Investigation into the small scale interaction of cellulosic nanofibrils with geling agents through diffusion in flow layers, and the study of the subsequent effect on macro scale flow behavior of fibre spinning. Methods primarily intended to be those utilized at synchrotron facilities, like USAX, WAXS, and more novel techniques like XMPI.
Synchrotron Methods for Biomaterial Processes Läs mer »
Latex nanoparticles with controllable physico-chemical properties, such as size, rigidity and surface functionality, have shown great promise in modifying and tailoring macroscopic properties of cellulosic nanomaterials. For instance, it has been found that cationic nanoparticles can stiffen or plasticize cellulose nanopapers depending on additive amount. The impact of nanoparticle shell functionality will be further investigated
Nanostructured composites from latex nanoparticles Läs mer »
Purpose of the project is to study mass transport of ionic liquids into wood pieces and fibers and consequent lignin and hemicellulose transport out from the pieces. Therefore, characterisation techniques to investigate the location of ionic liquids and lignin in the fiber structure are needed to be developed. Examples of such techniques are X-ray imaging,
Mass transport in wood components from processed woods(III-3) Läs mer »
From wood to nanocellulose and back again: A study on the nanoscale
From wood to nanocellulose and back again: A study on the nanoscale Läs mer »
Nanostructured aerogels for removal of organic and inorganic water pollutions
Nanostructured aerogels for removal of organic and inorganic water pollutions Läs mer »
This project sets out to elucidate mass transport characteristics during delignification of wood chips as a means of understanding and controlling non-uniform delignification effects, associated to low efficiency and poor property control in the current pulping processes. To obtain information on local variations of delignification effect in a wood chip, the treated chips will be
Improved uniformity of the fibers liberated in the kraft pulp digester Läs mer »
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