CREPEC > Séminaire CREPEC

Séminaire CREPEC

Prof Lars Berglund, KTH Royal Institute of Technology

Merci à tous pour votre participation au séminaire du Prof Berglund!

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Cellulose nanocomposites combining structural and functional properties

Recently, economical routes have been commercialized for disintegration of cellulose nanofibrils (CNF) from chemical wood pulp. CNF can be used as an aqueous suspension and combined with polymers. It is of interest in applications such as adhesives, coatings, biocomposites, foams and hydrogels. Research has furthermore showed the potential in multifunctional high-technology applications for aerogels, microelectronic devices, biomedical applications, liquid purification, packaging, magnetic materials etc. In most cases, cellulose is used as a nanofibril providing attractive physical properties. Good dispersion of nanocellulose in suspension or in the polymer matrix is essential in order to ripe the full benefits of the CNF properties. Furthermore, the moisture problems associated with cellulose needs to be addressed. The presentation includes strategies for nanostructural control in polymer matrix biocomposites, strategies for removal of the moisture sensitivity, demonstration of the potential of CNF biocomposites in semi-structural applications and in inorganic hybrids with fire retardant characteristics. Furthermore, new wood nanotechnology approaches have been developed, where the wood nanostructure is utilized in order to create load-bearing structures with new functions, including optical transparency.

Lars Berglund is a professor of Wood Composites at KTH Royal Inst of Technology in Stockholm, Sweden, and a director of Wallenberg Wood Sci Ctr (WWSC). Around 80 people are active in the center, including 25 PhD-students, working on basic engineering science topics related to "New materials from trees”. Prof Berglund is interested in structure-property relationships in new types of nanostructured biocomposites and other nanomaterials. He has published around 200 journal papers related to a wide variety of composite materials, and he is a member of the Royal Swedish Academy of Engineering Sciences.

 

Prof Abbas S. Milani, University of British Columbia

Merci à tous pour votre participation au séminaire du Prof Milani!

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