Abstract
Measurements of the dielectric constant and the dielectric loss, at frequencies of 0.05-10 kHz over a temperature range of 10–60 °C, were carried out on viscose fibres, viscose with iron adsorbed and with iron removed. The results obtained show that: (i) a relaxation process is observed in the low-frequency region only in the case of the viscose-iron complex, and (ii) the variation of the dielectric constant with temperature showed a transition at about 30 °C with the untreated fibres, and the transition disappeared when the fibres were treated with ferric chloride. These results, together with changes in hydrogen bonding obtained from infrared spectra for these samples are discussed. Oxidation and adsorption of ferric ions can modify the dielectric properties of viscose fibres.
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Abdel Moteleb, M.M., El Shafee, E. Dielectric investigation of the effect of ferric chloride on viscose fibres. Cellulose 1, 197–203 (1994). https://doi.org/10.1007/BF00813507
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DOI: https://doi.org/10.1007/BF00813507