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Chitosan based nanocomposite membranes with cellulose nanowhisker as nanoadditive
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0002-4755-5754
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-4762-2854
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-8909-3554
2013 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Biobased nanocomposite membranes were prepared using chitosan as te matrix and cellulose nano whisker as the reinforcing phase. Cellulosee production. Atomic force microscopy of the nanowhiskers showed diameters of 10 -20nm and lengths of 250 - 350nm. Nanocomposites were prepared in 1:1, 1:2 and 1:3 ratios to investigate the effect of nanoadditive concentration on the membrane properties. The nanocomposites were prepared by solution mixing followed by freeze-drying, to obtain porous structures with high degree of internal surface area. These nanocomposites were further treated with ammonia vapours to prepare the crosslinked nanocomposites and thereby stabilize it towards moisture and pH variations. The morphology, surface area, crystallinity, porosity, and mechanical properties of prepared membranes were studied. The effect of the nanocomposite composition, crosslinking and the pore size distribution on the water transport through the membranes was also evaluated.

Place, publisher, year, edition, pages
2013.
National Category
Bio Materials Chemical Process Engineering
Research subject
Wood and Bionanocomposites; Chemical Technology
Identifiers
URN: urn:nbn:se:ltu:diva-29730Local ID: 34bb7fa5-4501-439c-a40a-528ef721d8a4OAI: oai:DiVA.org:ltu-29730DiVA: diva2:1002956
Conference
EEIGM International Conference on Advanced materials research : 21/03/2013 - 22/03/2013
Note
Godkänd; 2013; 20130925 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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