Adsorption Studies of Humidity Presented by an Unbleached Kraft Woodpulp
A direct adsorption kinetic study of an unbleached Kraft woodpulp has exhibited a sequence of regimes of adsorption. The kinetics of adsorption of the first two stages may be described as typical of a first order process. The results obtained are perfectly consistent with qualitative descriptions of structure and fibre bonding in these materials, as abundantly reported in the literature. For the two first regimes, values for time constants and maximum mass of adsorbed water were evaluated. Clearly this technique reveals an outstanding potential for crucial information about surface area characterisation of paper woodpulps.
KeywordsAdsorbed Water Adsorption Study Lactone Formation Fibre Bonding Cellulose Hydrogel
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