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Technologyleapsforfutureapplicationsofcellulosefibres

Prof. Ali Harlin

Question:

New meaning of cellulose- the ultimate properties

of fractioned cellulose as a fibre?

DegradableBiobased

Recyclable Sustain

Understanding developsIn the past decades we have learned more of cellulosestructure and properties than in previous centuries

– Rapid development of research methods and equiment– Nanotechnology lead to detailled morphology of cell wall– Computational methods explained cellulose molular structure– Advanced methods to modify and dissolve cellulose– Digitalization enabled active communication of researches– Reorientation of the forest based industries increased finansing

Cellwall structure Fibril structure Molecular structureFibre structuresWoodstructure

Paper, board New inherent propertiesTimber Chemicals

Novel innovativematerials

Vision develops

From simple fibers to:

Complex natural polymerNano fibils and chrystals

Next supermaterials

Fiber foams

Innovation in processing:Specialty and long fibers formationTailored orientation and density profils

Siljanderet.al.NFCsurfaceonMWCNTnetwork

Heating nonwoven

Digitalized production

On-demand personizedMaterial adding manufacturingDirect production

Conductive/MagnetoactiveCoaxial Filaments +3dprint

Lundhal et.al.2016

Nanocellulose supermaterial

Applying high strengthHandling hygroscopicity & dryingControlled composite structures

Flame retardant

Kunnariet.al.Pat.Appl.FI20175604

Control over dissolving

Sustainable fibers and technical yarnsIL’s: Highly efficient cellulose solventsDES: Controlled swelling

Hormone capture

Orelmaet.al.2017

Towards engineered materials

Cellulose is more than collection of naturally occuring fibers:

• Fibril and chemical properties can be tailored multiple levels• ability to modify and construct new materials• Predefined structure engineering leads to material design

StructureEngineering

MaterialDesign

Innovation

Impact oftechnology leaps:

Enabling competitive renewable materials:Sustainable future through low LCA

Recycling ofcellulose:Increasing supply security ofsociety

Cellulose asnext super material:Replacement ofnon renewable materials

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