KTH is taking part in the EU funded Horizon 2020 project SISTERS. SISTERS aims to reduce food loss and food waste in the main different stages of the Food Value Chain in Europe through innovations targeted to each link of the value chain: new tools to primary producers for promoting direct and Short Chain sales […]
The project’s focus is on developing a methodology that will provide new knowledge and processcontrol capabilities concerning nano- and microscale fibrillar wood-pulp material in thepapermaking process.
The ever increasing threat from climate change has spurred the demand for innovative, sustainable materials that could reduce our dependence on fossil fuels. Dispersions of cellulose nanofibrils (CNFs), derived from wood, can be spun into filaments that exhibit favourable mechanical properties. However, the structure, dynamics and interactions of the CNFs during the spinning process, which
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,
Mechanical aspects of bio based composites Läs mer »
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
Deformation and fracture mechanisms of wood and wood polymer biocomposites Läs mer »
Lignocellulosic biomass represents the main renewable resource from the biosphere for the production of biofuels, platform chemicals and bio-based materials. Lignocellulose consists of a complex polymeric network of cellulose microfibrils embedded in a matrix of hemicelluloses, pectins, and lignins with exquisite organization from the nano- to the microscale. However, the heterogeneity of the lignocellulose polymeric
Molecular Basis of the Interactions and Recalcitrance of Lignocellulosic Biomass Läs mer »
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 »
BioUPGRADE unites expertise in functional genomics and material science to deliver breakthrough biotechnologies that sustainably upgrade nature’s main structural biopolymers into high-value and multipurpose materials.Living organisms drive our planetary carbon cycle via biocatalysts that transform CO2 into an enormous array of diverse and functional molecules. A significant fraction of this carbon is transformed into structural
This is a umbrella theme of research carried out in Sustainable Materials Chemistry (SUSMATCHEM) research group in Stockholm University. We aim to make most out of lignin with minimal processing and chemical modification according to the principles of green chemistry. In addition to fundamental studies of structure and properties of lignin and lignin nanoparticles, we
Functional lignin nanomaterials Läs mer »
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
Upscaling of natural plastic alternatives: towards a sustainable industry Läs mer »
The project aim is to control the stability and orientation of nanocellulose particles, by understanding the fundamental colloidal interactions between them in aqueous media. The information will then be used to create ordered and self-organized structures from nanocellulose dispersions. This knowledge is of great importance, since many nanocellulose based materials today are produced directly from
Colloidal properties of nanocellulose dispersions Läs mer »
In this project, we used different conducting polymers to impregnate the wood. Our goal is to create a pathway for studying the nano/microscopic structure of the conductive wood and the interactions between the wood components and the conducting polymer matrix. . In detail, we mainly focus on the difference of crystallinity and the orientation of
Conducting polymers-modified wood composites Läs mer »
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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