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Composite materials

There has been a dramatically increase in demand for sustainable and light weight materials, such as light and strong technical composites for transport or renewable and smart packaging. The combination of bio-plastics and wood fibers gives us an opportunity to meet this demand.

Cellulose fibres from wood offer a range of desirable properties, such as high specific mechanical properties, low weight, consistent high quality and low resource consumption. By combining the fibres with another polymer, a fibre-reinforced composite material is obtained. Yet another step is to combine the bioplastic with nanotechnology, as research project Sustaincomp will demonstrate.

Fibres for demanding applications

When working with composite materials, it is important to have good knowledge of the interaction between the fibre and the polymer, and how the wood fibre-based material interacts with water. Innventia boasts a high level of expertise within this field, and we know what is needed in order to develop technically advanced fibres which work in demanding applications.

Within this area of development, we focus on issues and areas such as the following:

  • The connection between moisture and properties
  • The mechanical properties of fibre-reinforced composite materials
  • Process development
  • Advanced bio-based matrices and multifunctionality
  • Stimuli-responsive materials

Composite materials can be created in many different ways. Helena Nilsson shows white chemical pulp which has been hot pressed into a 3D shape.

Unique properties

Renewable composites offer more than just a way of replacing traditional, non-renewable materials. Their unique properties are expected to result in brand new products and markets. Our approach to design, which includes everything from demonstrator development to molecular level, enables us to produce composite materials that are well-suited to meet the market needs. Renewability then becomes just one feature among many, rather than being the defining factor.

By working along the entire length of the value chain, from component raw materials right the way through to the end-user, new marketing channels are created for forest-based, renewable materials.


Fredrik Berthold
+46 8 676 7351
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Helena Halonen
+46 8 676 7253
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H. Nilsson, S. Galland, P.T. Larsson, E.K. Gamstedt, T. Nishino, L.A. Berglund, T. Iversen: A non-solvent approach for high-stiffness all-cellulose biocomposites based on pure wood cellulose. Compos. Sci. Technol., 70 (2010), 1704-1712