Ongoing

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.

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A new bio-based wood adhesive

TREESEARCH

One of the obstacles to easy recycling of wood composites is the thermosetting adhesives used in their production. Increasing the recyclability of composites could be achieved by developing bio-based bonding materials that will decompose under specific conditions. Bio-based adhesives such as those based on starch and microfibrillated cellulose have been demonstrated to form strong bonds

A new bio-based wood adhesive Läs mer »

Enhancing the stability of biomass-processing enzymes

TREESEARCH

We are investigating the basis of (thermo)stability in bacterial biomass-processing enzymes, and will use this information to engineer stability into enzymes of interest in the wood biorefinery.

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Renewable High-Performance Materials from the Forest with Designed Degradation – Next Generation of Plastic (Re-Design Plastic)

TREESEARCH

Sustainable material design can alleviate the environmental burden related to material waste. Use of available and abundant resources, create materials that can be recycled, and final degradability in nature is central to achieve this. The overarching aim of the proposal is to holistically design new materials from cellulose fibers by; developing new sustainable modification strategies,

Renewable High-Performance Materials from the Forest with Designed Degradation – Next Generation of Plastic (Re-Design Plastic) Läs mer »

New materials from Lignin

TREESEARCH

The goal of my project is creating new materials deriving from Lignin, in order to substitute materials deriving from petroleum.

New materials from Lignin Läs mer »

Design for Circularity: Lignocellulosic based Thermoplastics – FibRe

TREESEARCH

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,

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Processability of modified fibres for complex shaped parts

TREESEARCH

There is a drive towards the use of single-component materials in different applications, for example in opening and closure of packaging products and in single use plastics (SUP). This opens up the possible use of cellulose-based products, but increases the demand for new modification strategies for fibres. Modifications aiming at improving their processability and final

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Methodologies providing new insights into the fundamentals of the pulping process

TREESEARCH

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 »

Multifunctional fibres for different end-use applications

TREESEARCH

During the last decade there has been a large focus on using wood-based fibres in new materials and there has also been an overwhelming development of the use of nanocelluloses (NCs) in new types of composites where the properties of the Cellulose NanoFibrils (CNFs) or Cellulose NanoCrystals (CNCs) are utilized to create unique material properties.

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Xylem development and wood formation

TREESEARCH

The project focuses on lignification and cell death of xylem elements and how these processes influence the chemical and physical properties of the secondary cell walls and woody tissues of vascular plants. We use two model systems. The roots and hypocotyls of Arabidopsis thaliana provide excellent models for understanding the molecular and genetic control of

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Injection moulded polymers – imaging of composites with x-ray techniques

Anastasia Riazanova

Investigation of the structure induced by processing of traditional polymers for packaging application (such as LDPE or HDPE) as well as new cellulose and ligno-cellulose based materials. Characterization include SAXS/WAXS imaging, birefringence, STXM, and CT.

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Advanced rheological characterization of cellulose based systems

Anastasia Riazanova

Processing, e.g. extrusion, injection molding, typically involves rheologically complex materials in complex flow configurations. The deformation history therein experienced by materials is generally characterized by a series of shear, extensional, or a combination of the two deformations, at high isotopic pressures and temperatures. Therefore, a fundamental understanding of the material response in simple shear and

Advanced rheological characterization of cellulose based systems Läs mer »

Plasticization and partial depolymerization of lignocellulose-based materials

A new bio-based wood adhesive

Enhancing the stability of biomass-processing enzymes

Renewable High-Performance Materials from the Forest with Designed Degradation – Next Generation of Plastic (Re-Design Plastic)

New materials from Lignin

Design for Circularity: Lignocellulosic based Thermoplastics – FibRe

Processability of modified fibres for complex shaped parts

Methodologies providing new insights into the fundamentals of the pulping process

Multifunctional fibres for different end-use applications

Xylem development and wood formation

Injection moulded polymers – imaging of composites with x-ray techniques

Advanced rheological characterization of cellulose based systems

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