Smartfibre Surface Engineering of Pulp Fibres: New Functionalisation Concepts for Smart Fibre Products
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1 Smartfibre Surface Engineering of Pulp Fibres: New Functionalisation Concepts for Smart Fibre Products Pedro Fardim and Jan Gustafsson Lab. of Fibre and Cellulose Technology Åbo Akademi University Impact Day as a part of Functional Materials Summer Festival on
2 TARGETS AND MOTIVATION Targets: 1) Multifunctionalisation and activation of fibres for current and future industrial applications 2) Develop a new platform for characterisation of fibres using nanorobotics and automation Motivation: 1) New applications for pulp fibres in new value chains improve sustainability of materials 2) Reliable platform for characterisation of fibre functionality is needed to support new research in materials DM
3 OUR APPROACH Multi-functionalisation of fibres (WP1) Nanorobotics and advanced spectrometry (WP2) Advanced characterization of smart fibres and papers (WP3) Concept development and technology transfer (WP4) New chemicals New laboratory instruments New functionalities New fibre based products New processes New pulp and paper industry in Europe New scientists DM
4 NEW FUNCTIONS FOR FIBRES From colloidal particles and pulp fibres rethinking pulp composites flame retardant insulation to product ideas. to functionalized fibres
5 NEW PROCESSES FOR FIBRE FUNCTIONALISATION IN FIBERLINES (1) Xylan from birch Hot water extraction from chips Å. Linder et al. Langmuir 2003, 19, 5072 Pine pulp with adsorbed xylan (better mechanical properties) Cold alkali extraction from pulp Neutralization Precipitation Washing Separation Concentration Oxygen bleaching and xylan adsorption UB pine kraft pulp Cold Alkali Xylan (CAX) Hot Water Xylan (HWX)
6 NEW PROCESSES FOR FIBRE FUNCTIONALISATION IN FIBERLINES (2) New method to remove HexAs in O bleaching leads to shorter bleaching sequences Reference sequence O PBA -reinforced sequence HexA [µmol/g] HexA [µmol/g] Initial O2 Ahot D0 EOP D1 P Initial O Opba D0 EOP
7 NEW PLATFORM FOR FIBRE CHARACTERIZATION (1) Flexibility Measurement
8 NEW PLATFORM FOR FIBRE CHARACTERIZATION (2) rop-on-fiber Contact Angle Measurement Top View
9 NEW PLATFORM FOR FIBRE CHARACTERIZATION (3) easuring Individual Bonds Strength
10 APPLICATIONS AND IMPACT Applications: 1) Concepts for new fibre based products: flame retardant materials, biocomposites, packaging, advanced materials 2) New processes for functionalisation in industry using current technology 3) New platform for fibre characterisation: fibre flexibility, fibre-to-fibre bonds, surface energy (contact angle) Impact: 1) Technology: New technologies for fibre functionalisation, new devices for the industry seeds for new products 2) Science: New concepts for functionalisation and new ways to verify them seeds for new research DM
11 SMARTFIBRE Pedro Fardim and Jan Gustafsson Our project focused on development of concepts and technologies for fibre functionalisation and characterisation. Technology for fibre functionalisation that is suitable for large scale and cost efficient applications are needed. Functional pulp fibres can be used in new value chains other than traditional papermaking. We could develop methods for functionalising fibres with inorganic nanoparticles and biopolymers leading to new fibre products that are suitable for flame retardant materials and biocomposites. We could also develop a new process for shorter bleaching sequences in pulp mils. A new platform for fibre characterisation was also developed using nanorobotics and automation. This platform gives new perspectives on measurements of fibre properties and allows the design of fibre functionalities with great precision. Technology and innovation transfer to industrial partners is available in form of new processes to be implemented in fibre lines or new fibre products to be used in other value chains than papermaking. In addition a new device is available for fibre characterisation in laboratory scale
12 Smartfibre: Surface Engineering of Pulp Fibres: New Functionalisation Concepts for Smart Fibre Products Project Manager: Åbo Akademi University, Lab. of Fibre and Cellulose Technology, Prof. Pedro Fardim Period: Research partners: Åbo Akademi University (Pedro Fardim), Tampere University of Technology (Pasi Kallio) Companies involved: Metsä Fibre (Pirkko Liias), UPM (Tom Hultholm), Stora Enso (Irene Wedin) International co-operation: Latvian Institute of Wood Chemistry (Arnis Treimanis), Friedrich Schiller University of Jena (Thomas Heinze), European Polysaccharide Network of Excellence (EPNOE)
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