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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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Hybrid Glycoproteins from Wheat Bran as Platform Materials

Vetekli är det yttre skiktet som omger kornens frövita och utgör den huvudsakliga biprodukten från vetemalningsprocessen och står för cirka 300 000 ton per år i Sverige. Vetekli används för närvarande nästan uteslutande industriellt som djurfoder på grund av lågt organoleptiskt värde och näringsvärde för mänsklig konsumtion. Vetekli innehåller emellertid en stor andel värdefulla biomolekyler

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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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Mechanical aspects of bio based composites

The work consists of understanding the mechanical aspects of novel bio-based composites by exploring microstructures, weak interfaces, anisotropy, and lamella thickness. My current projects are (i) in situ mechanical tests with Deben microtester and scanning electron microscopes on a thin layer of montmorillonite clay on hydroxyethylcellulose films to investigate interfacial (adhesion) properties between the constituents,

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Deformation and fracture mechanisms of wood and wood polymer biocomposites

The main objective of this project is to study the deformation and fracture mechanisms of wood and polymer impregnated wood biocomposites, characterize the mechanical properties and relate them to structural differences. In this project, strain and deformation fields are measured, during mechanical loading, using digital image correlation which is useful for material comparison, also to

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Real time 4D X-ray microtomography Imaging and analysis of water transport mechanisms in sustainable paper straws

At present, there are no quantitative experimental studies for liquid transport with relevant spatial and temporal resolution in cellulose fiber networks. This project aims to improve the understanding of the dynamic interplay between water transport processes and the cellulose fiber network. In this way, the proportion of sorption of water in pores and cell walls

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Upscaling of natural plastic alternatives: towards a sustainable industry

The extensive use of fossil-based plastic around the world is accelerating climate change. The global life cycle GHG emissions of fossil-based plastics were 1.7 Gt of CO2 equivalent in 2015 and would reach 6.5 Gt CO2 equivalent by 2050 if the current plastic demand trend were to continue. However, legislations and consumers are pushing the

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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,

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FibreFuse – Biobaserade kolfiber: Hur undviks att biobaserade kolfibrer fastnar i varandra under tillverkningen?

Att använda kolfibrer som armering i kompositer ger ett lättviktsmaterial som kan ersätta stål, aluminium eller glasfiber i många konstruktioner, t.ex. i fordonsindustrin eller till turbinbladen i vindkraftverk. Dessvärre är dagens kommersiella kolfibrer för dyra för många tillämpningar och även tillverkade av fossilbaserade polymerer. Lignin har länge ansetts vara en speciellt attraktiv kandidat som råmaterial

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Om Treesearch

Treesearch har som syfte att skapa en nationell plattform för att stödja forskning. Forskningsprojekt som bedrivs inom Treesearch forskningsområden och de forskare som är aktiva i dessa projekt är välkomna att ansluta till plattformen.

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