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No 40 / 55

Surface structure of wood microfibrils (Mikroyta)

Date: 1.1.1997-31.12.1999
Code: 26716
Department: Åbo Akademi University / Faculty of Mathematics and Natural Sciences (MNF), Dept. of Physical Chemistry
Address: Porthansgatan 3-5, FIN-20500 Åbo
Phone +358-2-2154 252
Fax +358-2-2154 706
E-mail jpeltone@abo.fi
Project leader: FD Jouko Peltonen, docent (1.1.1997-31.12.1999)
Researchers: FK Johanna Simola (1.9.1997-31.12.1999)
Type of research: 2 (0=Within duty, 1=Ordered research, 2=Co-operation)
- basic research 80 %
- applied research 20 %
Finnish funding organizations: Finlands Akademi, Helsingfors (MATRA (Material och strukturforskning)) FIM 506000
Man months: Totally: 27 months
Partners: VTT Bio- och livsmedelsteknik, Esbo Jyväskylä Universitet, Jyväskylä KCL, Esbo
Keywords: fibrer, ytkemi, kuidut, pintakemia, materialvetenskap, ytstruktur, träfibrer, Materials science, surface structure, wood midrofibrils,

This consortium applies scanning probe microscopy [SPM] and FTIR microscopy in combination with existing results from theory-supported studies of native cellulose surfaces to achieve a corresponding characterisation and understanding of cellulose-hemicellulose-lignin systems, integral cell walls and model pulps.We also study how enzymatic degradation affects the fibre, fibril and microfibril surfaces.The department of physical chemistry at Åbo Akademi University has its main focus on SPM characterisation of the microfibrils, with the aim of localizing the cellulose, hemicellulose and lignin on the surface of both native and enzymatically treated fibrils.Topographic, friction and phase imaging will be used together with force-distance measurements.


21.3.1996 / 11.3.1998