2012
DOI: 10.15376/biores.7.4.4683-4703
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Cellulose Microfibril-Water Interaction as Characterized by Isothermal Thermogravimetric Analysis and Scanning Electron Microscopy

Abstract: Microfibrillated celluloses, liberated from macroscopic lignocellulosic fibers by mechanical means, are sub-fiber elements with lengths in the micron scale and diameters ranging from 10 to a few hundred nanometers. These materials have shown strong water interactions. This article describes an investigation and quantification of the 'hard-toremove (HR) water content' in cellulose fibers and microfibrillated structures prepared from fully bleached softwood pulp (BSW). The fiber/fibril structure was altered by u… Show more

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Cited by 6 publications
(5 citation statements)
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“…In another work, Sen et al . 36 used another method to calculate the HR water for pulp fibers by integrating the area above the 1st derivative curve in the constant and falling rate zones, and compared this method with the method used by Park et al . The authors refined cellulose fibers to liberate microfibrils with different sizes ranging from several microns down to hundreds of nanometers.…”
Section: Resultsmentioning
confidence: 99%
“…In another work, Sen et al . 36 used another method to calculate the HR water for pulp fibers by integrating the area above the 1st derivative curve in the constant and falling rate zones, and compared this method with the method used by Park et al . The authors refined cellulose fibers to liberate microfibrils with different sizes ranging from several microns down to hundreds of nanometers.…”
Section: Resultsmentioning
confidence: 99%
“…In support of this statement, a strong exotherm has been observed accompanying the first increment of water uptake onto completely dry cellulose (Kocherbitov et al 2008). Water that is strongly bound to cellulose has also been characterized as "hard to remove water" as measured by thermogravimetric analysis or as freezing or non-freezing bound water as measured using differential scanning calorimetry (Park et al 2006(Park et al , 2007Sen et al 2012).…”
Section: Cellulose Crystallinitymentioning
confidence: 90%
“…This seems logical as the amount of hard-toremove water is linked to the cellulose-air interfacial area [74]. Spence et al [75] used a similar method to determine the HR-water content of a heavily homogenized (20 passes) bleached kraft pulp MFC.…”
Section: Discussionmentioning
confidence: 99%