Development of thermoplastic lignocellulose based materials
The aim of this project is to develop and increase the knowledge of thermoplastic materials from bleached pulp through minimal chemical modification.
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Stora Enso
Preparation and use of lignocellulose nanomaterials in energy storage devices
Cellulose nanomaterials (CNs) obtained from fully-bleached (lignin-free) chemical fibers, such as cellulose nanoparticles (CNPs), cellulose nanofibers (CNFs), microfibrillated cellulose (MFC) have been a topic of extensive research during last decades since they constitute a biodegradable, renewable and naturally abundant resource with an important scientific and technological potential. However, the bleaching process is an energy-intensive process …
Preparation and use of lignocellulose nanomaterials in energy storage devices Läs mer »
Efficient Washing of Paper grade pulp in the kraft process
The project contributes to strengthened Swedish competitiveness through its expected research results and new fundamental knowledge for the development of an efficient pulp washing process and thus through an increased pace of innovation in the transition to a circular economy. After pulping the wood chips, the resulting pulp fibres and cooking liquor are separated in a …
Efficient Washing of Paper grade pulp in the kraft process Läs mer »
Modeling, processing and optimization of highly-filled polymer wood fiber composites
Biocomposites are a critical ingredient in the context of overarching societal efforts to increase the use of renewable materials. Therefore, the use of polymer with natural fiber reinforcements is expected to increase significantly. A current drive for polymer biocomposites is to maximize the use of renewable content in mass production systems. However, the full potential …
Modeling, processing and optimization of highly-filled polymer wood fiber composites Läs mer »
The kinetics of lignin extraction in oxygen delignification.
The current and future environmental challenges call for improved and more sustainable processes in the pulp industry. To contribute to a sustainable and competitive Swedish bioeconomy the pulp industry needs to increase efficiency without increasing the use of hazardous chemicals. Oxygen delignification is a unit process that has been used in pulp mill fiberlines between …
The kinetics of lignin extraction in oxygen delignification. Läs mer »
Circular cellulose to textile fiber production
The overall aim is to enable an upscaled process for textile fiber production based on alternative cellulose rich feedstocks together with TreeToTextile’s process, which is resource and energy-efficient without use of toxic chemicals. The proposed project focuses on the knowledge development for utilization of cellulose from residual streams, such as agricultural waste streams, recycled cartonboard/paper, …
Multi scale modeling of the delignification kinetics during kraft cooking
The kraft process is today the dominant industrial technology for the production of pulp from wood.In this process, wood chips are boiled with chemicals in order to dissolve lignin, hemicellulose andextractives. The process itself contains several complex mass transport mechanisms, where thechemicals are to be transported into the wood chip and then further into the …
Multi scale modeling of the delignification kinetics during kraft cooking Läs mer »
Plasticization and partial depolymerization of lignocellulose-based materials
This project is a part of the competence center FibRe. This particular PhD student project aims to plasticize the lignin in the cell walls. The first part will be to extract lignin from wood and wheat straw, and to evaluate how different plasticizers affect the material properties. This will then be extrapolated to lignocellulose-based fibers.
Design for Circularity: Lignocellulosic based Thermoplastics – FibRe
Global warming is one of the largest threats ever to our planet which can completely alter our living conditions. Human contributions to emissions of green-house gases must decrease, and a drastically decreased use of fossil resources is a key step to achieve this. Daunting 320 million tons of plastics are annually produced in the world, …
Design for Circularity: Lignocellulosic based Thermoplastics – FibRe Läs mer »
Modifiering av Kraft lignin for Material Syntes
Sverige har som målsättning att bli en totalt biobaserad ekonomi från år 2050. Skogsindustrin, som är en nyckelaktör för ekonomisk utveckling i Sverige, kan här spela en central roll. Vid produktion av kemisk massa frigörs en polyfenolisk förening som kallas lignin. Den globala årliga produktionen av lignin från den dominerande processen för att producera massa …
KAW Biocomposites
Technical objective The project is focused on materials design of biocomposites which are semi-structural, recyclable and/or biodegradable. The term “semi-structural” needs to be defined. If 30wt% glass fiber/polypropylene is selected as the reference material for substitution, it would mean that the modulus should be > 6 GPa and the tensile strength > 85 MPa. In …
EcoSys – Eco-effective processes and systems
The main purpose of EcoSys is to develop and implement energy-saving technologies at production units producing mechanical pulp with high wood yield (> 90%) and thus also demonstrate and further improve the environmental and sustainability aspects of mechanical pulp manufacturing. Mechanical pulp is durable and resource efficient since it is manufactured with a very high …
