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Nano-ligno-cellulose as strength enhancer in handsheets
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
2013 (English)Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

In recent years, there has been tremendous work in the research field of nanocellulose or microfibrillated cellulose but, very few scholars have envisioned the use of the low quality fibre fraction of mechanical pulps for the production of mechanical pulp based nanocellulose, referred to as nano-ligno-cellulose (NLC) in this paper. Today, it has been noticed by many that there has been an economic downturn in the pulp and paper industry and that this adverse situation could be somewhat alleviated by possibly searching for better products or by improving the material quality of existing products (papers and paperboards). This paper presents results related to paper strength properties based on testing of handsheets of pulp fibres blended with nanocellulose. The results indicate that the addition of nano-ligno-cellulose (NLC) to chemi-thermomechanical pulp (CTMP) fibres improved the z-strength property of laboratory sheets with only a slight effect in relation to the sheet density. Also the crill characterisation method was used to evaluate fibre size distribution. The measurement of crill is based on optical response of a suspension at two wavelengths of light; UV and IR. The UV light contains information on both the total fibres and the crill, while IR only contains information on fibres. Results showed that the crill value of NLC of CTMP correlated (linearly) fairly well with the homogenisation time.

Place, publisher, year, edition, pages
2013.
Keyword [en]
chemi-thermomechanical pulp, homogenisation, nanocellulose, z-strength, crill
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-21104OAI: oai:DiVA.org:miun-21104DiVA: diva2:689622
Conference
Marcus Wallenberg Prize (MWP 2013) - Young Researchers' Programme, Stockhom , Sweden, 23-24 Sept 2013.
Available from: 2014-01-21 Created: 2014-01-21 Last updated: 2014-01-22Bibliographically approved

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