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Water transmission barrier properties of biodegradable films based on cellulosic whiskers and xylan

A. Saxena ; Arthur Ragauskas (Institutionen för kemi- och bioteknik, Skogsindustriell kemiteknik)
Carbohydrate Polymers (0144-8617). Vol. 78 (2009), 2, p. 357-360.
[Artikel, refereegranskad vetenskaplig]

The reinforcement of natural biopolymers with cellulosic whiskers has been shown to be beneficial for physical strength properties including xylan films. This study examines the water transmission properties of xylan films reinforced with cellulosic whiskers prepared from kraft pulp hydrolyzed with sulfuric acid. Measurements of water transmission rate (WVTR) were accomplished by a modification of wet cup method described by ASTM E 96-95. The results showed that films prepared by xylan reinforced by 10% sulfonated whiskers exhibited a 74% reduction in specific water transmission properties with respect to xylan film and a 362% improvement with respect to xylan films reinforced with 10% softwood kraft fibers. (C) 2009 Elsevier Ltd. All rights reserved.

Nyckelord: Xylan, Cellulose whiskers, Water transmission, Barrier, nanocomposites



Denna post skapades 2010-02-26. Senast ändrad 2017-06-30.
CPL Pubid: 115514

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Skogsindustriell kemiteknik (2005-2014)

Ämnesområden

Pappers-, massa- och fiberteknik

Chalmers infrastruktur