Department of Bioproducts and Biosystems

Wood Material Science and Technology

The wood material science and technology group, led by assistant professor Lauri Rautkari, focuses on a variety of subjects ranging from developing thermal modification processes and improving the properties of wooden construction materials to microbiology and chemistry of wood and wood components. The aim of this group is to develop new sustainable, environmentally friendly and diverse wood products with enhanced properties.
WoodMaterialScienceTechGroup

Research subjects

Thermal and chemical modification of wood

We research the phenomena behind the changes in wood material due to different modification methods, such as thermal and chemical modification, e.g., innovative hot water modification process for solid wood, as well as developing novel analysis techniques to study water vapor sorption phenomena.

Surface modification of wood

We study wood modification by one-sided surface charring in order to create a durable, ecological and maintenance-free construction material for wall claddings and sidings, as well as for other purposes both indoors and outdoors.

 

Thermally modified wood samples - Photo: Maija Kymäläinen

Pine extractives and natural durability of wood

We investigate the ways in which pine wood extractives prevent the growth of wood decaying fungi and study how the fungi work to overcome the effects of those extractives.

Antibacterial properties of wood extracts

We study the antibacterial properties of wood components, such as extractives, lignin and VOC's especially in terms of pathogenic bacteria.

Chemical imaging of wood

We are applying confocal Raman microspectroscopy and chemometrics to analyze cellular level changes during wood decay and the distribution of chemical modification agents. We are also developing methods to study local changes in water vapor sorption in the wood cell wall in-situ.

Chemical imaging of wood - photo: Michael Altgen

Wood-based panels and lignin adhesives

We are developing environmentally bening, greener adhesives for the wood panel industry by utilizing the versatility of wood lignin.

Wood veneer and plywood properties

We aim to improve the properties of wood veneer by investigating the effect of drying parameters on the hydroxyl group accessibility and glueability of green birch veneers, as well as increase the fire-retardant properties of veneers for plywood production and investigate the impact of treatments on bondability and sorption behavior.

Drying modified veneer for plywood manufacturing - Photo: Anni Hanén

Earlier and ongoing research

  • Recycling possibilities for wooden packaging waste and wood working industry by-products - RecycledWood (KiertoPuu; EU/ERDF 2019-2020)
  • Wood modification using pressurized hot water - HOTWOOD (Academy of Finland, 2017-2021)
  • Interactions of wood and water in the nanoscale - WooD2O (AoF 2018-2021)
  • Charred surface as a durable, sustainable façade material for the future of wood construction - CHARFACE (AoF 2019-2022)
  • Thermal modification of wood in aqueous media (EU/ERDF 2018-2020)
  • Modification of wood veneer (EU/ERDF, 2016-2018)
  • Lasting wooden facades with surface charring - SurfaceMod (PintaMod; EU/ERDF, 2017-2018)
  • Colloidal lignin adhesives and coatings - COLIAD (Tekes 2016-2018)
  • Developing the ThermoWood process and products (EU/ERDF 2015-2017)
  • Several ongoing industrial projects (2014 -)
Demonstrating thermal modification of wood - photo: Olli Häkämies

The 4-year Academy of Finland funded project HotWood investigates what happens to the ultrastructure of wood, when it is modified in superheated water at high pressure. Find out more about this and other projects at metsä.fi!

Latest publications

Wood Material Science, Department of Bioproducts and Biosystems
Publishing year: 2019 ACS Sustainable Chemistry and Engineering
Department of Bioproducts and Biosystems, Wood Material Science
Publishing year: 2019 Composites Part A: Applied Science and Manufacturing
Wood Material Science, Department of Bioproducts and Biosystems, School services, CHEM
Publishing year: 2019 European Journal of Wood and Wood Products
Department of Bioproducts and Biosystems, Wood Material Science
Publishing year: 2019 Scientific Reports
Department of Bioproducts and Biosystems, Wood Material Science
Publishing year: 2019 Journal of Materials Science
Department of Computer Science, School services, SCI, Professorship Lokki T., Wood Material Science, Department of Bioproducts and Biosystems
Publishing year: 2019 Acoustics
Professorship Lokki T., Department of Computer Science, School services, SCI, Wood Material Science, Department of Bioproducts and Biosystems
Publishing year: 2019
School services, CHEM, Wood Material Science, Department of Bioproducts and Biosystems
Publishing year: 2019 Holzforschung
Wood Material Science, Department of Bioproducts and Biosystems
Publishing year: 2019 Holzforschung
Department of Bioproducts and Biosystems, Wood Material Science, Bioproduct Chemistry
Publishing year: 2019 Abstracts of papers of the American Chemical Society
More information on our research in the Research database.
Research database

Research group members

Lauri Rautkari

Lauri Rautkari

Department of Bioproducts and Biosystems
Assistant Professor
Mikko Mäkelä

Mikko Mäkelä

Department of Bioproducts and Biosystems
Postdoctoral Researcher

Tiina Belt

Department of Bioproducts and Biosystems
Postdoctoral Researcher

Tuomas Hänninen

Department of Bioproducts and Biosystems
Postdoctoral Researcher

Maija Kymäläinen

Department of Bioproducts and Biosystems
Academy Postdoctoral Researcher

Suvi Kyyrö

Department of Bioproducts and Biosystems
Doctoral Candidate

Michael Altgen

Department of Bioproducts and Biosystems
Postdoctoral Researcher

Muhammad Awais

Department of Bioproducts and Biosystems
Doctoral Candidate

Paavo Penttilä

Department of Bioproducts and Biosystems
Academy Postdoctoral Researcher

Daniela Altgen

Department of Bioproducts and Biosystems
Visiting Doctoral Candidate

Nina Kokkonen

Department of Bioproducts and Biosystems
Doctoral Candidate

Panu Miettinen

Department of Bioproducts and Biosystems
Project Employee

Pasi Herranen

Department of Bioproducts and Biosystems
Research Assistant

Orvokki Ihalainen

Department of Bioproducts and Biosystems
Project Employee

Aleksi Zitting

Department of Bioproducts and Biosystems
Doctoral Candidate
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