Project theme: 1–wood components

Nanolatexes for cellulose modification

Latex nanoparticles can be prepared via RAFT-mediated polymerization-induced self-assembly (PISA) in water. They are tailor-made and highly versatile nanoparticles that can be used for modification of cellulosic fibers due to their high affinity. Part of WWSC.

Sustainable High Performance Polymers from Functional Building-Blocks Created in Water

The projects aim to develop new materials based on renewable resources. The synthetic strategy involved is highly modular. This modularity enables a plethora of monomeric building blocks in one step. The final materials originate from abundant, cheap, and renewable reactants, meaning that the developed material would apply to all applications, ranging from advanced biomedical applications …

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Microscopic computed tomography aided finite element modelling of wood

Laboratory X-ray tube-based microscopic computed tomography (XµCT) aided finite element (FE) modelling considers XµCT data to characterize key engineering properties needed for modelling of material behavior. The method includes steps such as XµCT scanning, segmentation, meshing, and fiber reconstruction and can be supported by techniques such as digital image correlation and digital volume correlation. At …

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Towards Improved Molecular Understanding of Artificial Plant Cells

The project is on the development of artificial plant cells. This encompasses on one hand the development of plant cell models themselves (from layer-by-layer fabrication to more complex synthesis protocols) as well as method development of neutron and x-ray scattering techniques for the characterization of the artificial plant cells. In the end, a combination of …

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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 …

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3D nanotomography of wood fibres

Typically imaging of wood cells by 3D nanotomography is performed with the help of TEM or cryo TEM. To get a proper transmission signal, samples should be cut down to 100 nm thickness or even less. In this project we want to avoid extreme sectioning of wood pieces where observation area includes only a part …

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Fundamentals of nanoscale assembly of cellulose nanofiber

I am interested in fundamentals of cellulose nanofibers (CNF) and cellulose nanocrystals (CNC) in dilute, semi-dilute, and crowded environment. Specifically, for CNFs, semi-flexibility of fibers and its effect on nano-scale dynamics is a key aspect of my project. At the moment, combining simulations with experiments (X-ray photon correlation spectroscopy) is the strategy to proceed the …

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Structural Modification Softwood Pulp Cell Wall Under Extreme Pressure Conditions 

The ability to modify the structure of the wood-pulp fibre cell wall structure is an attractive means to obtain increased accessibility to the fibre interior and enable functionalization such as controlled drug delivery, interpenetrated networks, and selective removal of metal ions from aqueous mixtures just to mention a few examples. By changing the physical state …

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Mechanical behavior of all-lignocellulose composites 

In this study, we investigated property differences and failure mechanisms of hot-pressed, binder-free wood fiber composites. Random-in-plane microfibrillated lignocellulose (MFLC) composites showed better mechanical properties than microscale wood fibers WF due to stronger strain-hardening from lower porosity and better interfibrillar adhesion, provided by the intrinsic lignin-hemicellulose binder. Axially oriented wood fiber composites (O-WF) reached comparable …

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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 …

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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 …

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