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Deformation behavior of wet lignocellulosic fibers
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Robert M. Lowe
Published/Copyright:
April 26, 2007
Abstract
The deformation behavior of wet lignocellulosic fibers was examined by applying a dilute suspension of dyed pulp fibers to a filter paper and then wet pressing the fibers onto glass slides. The geometry of single fiber crossing was determined using light interference and an image analysis computer program. The effects of pulp type, refining, wet pressing, drying and bleaching on the deformation behavior of pulp fibers were explored. The main effect of refining fibers was to reduce the step height for fiber-fiber crossings for both bleached and unbleached pulps by increasing the tendency of the cell wall to collapse and deform. All the pulps and treatments investigated maintained a relatively constant value for the step height/free span ratio.
Keywords: bleached kraft pulp; deformability; fiber crossing; flexibility; refining; single fiber; unbleached kraft pulp; wet pressing
Received: 2006-12-13
Accepted: 2007-2-21
Published Online: 2007-04-26
Published in Print: 2007-5-1
©2007 by Walter de Gruyter Berlin New York
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Keywords for this article
bleached kraft pulp;
deformability;
fiber crossing;
flexibility;
refining;
single fiber;
unbleached kraft pulp;
wet pressing
Articles in the same Issue
- To all readers, authors and subscribers
- Vapor-phase diethyl oxalate pretreatment of wood chips: Part 1. Energy savings and improved pulps
- Vapor-phase diethyl oxalate pretreatment of wood chips: Part 2. Release of hemicellulosic carbohydrates
- Size exclusion chromatographic and UV-VIS absorption analyses of unbleached and bleached softwood kraft pulps using LiCl/1,3-dimethyl-2-imidazolidinone as a solvent
- A new method for the titration of free phenolic groups in pulps
- Adsorption of water-soluble organic dyes on ferrofluid-modified sawdust
- Mechanical properties and creep behavior of lyocell fibers by nanoindentation and nano-tensile testing
- Deformation behavior of wet lignocellulosic fibers
- Changes in physical, mechanical and chemical properties of wood during sterilisation by gamma radiation
- Penetration of poly(ethylene glycol) into wood cell walls of red pine
- Transverse mechanical behaviour and moisture absorption of waterlogged archaeological wood from the Vasa ship
- Determination of residual stress in bonded wood components
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- Improved quantitative determination of benzalkonium chloride in treated wood by liquid chromatography
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