Can Trees Transform Our Life
Introduction of Wood-related Materials Research in Edinburgh Napier University
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Cellulose gels
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Cellulose Powder (Mechanical Process)
Pulp
shredder
Shredded Pulp
Cellulose Powder
250µm wire mesh Filter
Dialysis
3-5 days to remove sulphuric acid and increase pH
Centrifuge will be used subsequently to adjust zeta potential (counter ions) The concentration of the sample will be increased (gel) Roll mill will be used to further mix the gel after centrifugation/concentration to reduce the domain size and increase homogeneity The gel samples are stored in falcon tube in fridges
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Nanocellulose Project
Fine Paper (Graphics)
Speciality – Release Paper
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Structure of Cellulose Fibres
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Processing of Nano Cellulose
Mechanical process Acid hydrolysis Purification (removal of unused stuff and purify the remaining) Dialysis process (adjust pH of cellulose suspension) (Optional) Counter ions (in order to adjust surface charge) Concentration Mixing Gel storage (aging effect)
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Nanocellulose Project
Collaborative research project between Napier and Sappi Fabrication of cellulose nanofibrils from pulps Utilising cellulose nanofibrils (in-house and external) to make high strength fibres Scale up the process to a industrial level
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Forest Products Research Institute
One of the nine institutes in Edinburgh Napier University Work of existing Centre for Timber Engineering separated and new institute established in 2010 Includes four specialist research centres Various resources funding projects (Scottish government, Edinburgh Napier University, industrial companies etc)
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Ball Milling
Centrifuge
Centrifuge to remove acid and waste
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Centres in FPRI
Two centres focus on design and construction of wood products
• The Wood Studio • Centre for Timber Engineering
Two centres deal with wood-related materials science and chemistry research
• Centre for Plant Science and Biopolymer Research
• Centre for Wood Science and Technology