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The water vapour sorption characteristics and kinetics of different wool types. / Ormondroyd, Graham; Curling, Simon; Mansour, Elie; Hill, Callum.

Yn: Journal of the Textile Institute, Cyfrol 108, Rhif 7, 2017, t. 1198-1210.

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Ormondroyd, G, Curling, S, Mansour, E & Hill, C 2017, 'The water vapour sorption characteristics and kinetics of different wool types', Journal of the Textile Institute, cyfrol. 108, rhif 7, tt. 1198-1210. https://doi.org/10.1080/00405000.2016.1224442

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Ormondroyd, Graham ; Curling, Simon ; Mansour, Elie ; Hill, Callum. / The water vapour sorption characteristics and kinetics of different wool types. Yn: Journal of the Textile Institute. 2017 ; Cyfrol 108, Rhif 7. tt. 1198-1210.

RIS

TY - JOUR

T1 - The water vapour sorption characteristics and kinetics of different wool types

AU - Ormondroyd, Graham

AU - Curling, Simon

AU - Mansour, Elie

AU - Hill, Callum

PY - 2017

Y1 - 2017

N2 - The water vapour sorption behaviour of a range of sheep wool types and alpaca was studied using dynamic vapour sorption. Sorption isotherms have been interpreted using the polymer sorption model developed by Vrentas and Vrentas. Satisfactory fits were obtained for absorption and desorption isotherms with the adjustment of parameters outside of the scope of what is allowed. This is possibly because the underlying Flory-Huggins approach does not take into account any clustering of sorbate within the polymer. Water clustering in the wool fibre, determined using the Zimm-Lundberg clustering function, starts above a fibre moisture content of approximately 20%. Sorption kinetics was analysed using the parallel exponential kinetics model, providing excellent fits and allowed for calculation of a fibre modulus at different relative humidities; the values were reasonable at the upper end of the hygroscopic range, but were over-estimated at the lower end of the range.

AB - The water vapour sorption behaviour of a range of sheep wool types and alpaca was studied using dynamic vapour sorption. Sorption isotherms have been interpreted using the polymer sorption model developed by Vrentas and Vrentas. Satisfactory fits were obtained for absorption and desorption isotherms with the adjustment of parameters outside of the scope of what is allowed. This is possibly because the underlying Flory-Huggins approach does not take into account any clustering of sorbate within the polymer. Water clustering in the wool fibre, determined using the Zimm-Lundberg clustering function, starts above a fibre moisture content of approximately 20%. Sorption kinetics was analysed using the parallel exponential kinetics model, providing excellent fits and allowed for calculation of a fibre modulus at different relative humidities; the values were reasonable at the upper end of the hygroscopic range, but were over-estimated at the lower end of the range.

U2 - 10.1080/00405000.2016.1224442

DO - 10.1080/00405000.2016.1224442

M3 - Article

VL - 108

SP - 1198

EP - 1210

JO - Journal of the Textile Institute

T2 - Journal of the Textile Institute

JF - Journal of the Textile Institute

SN - 0040-5000

IS - 7

ER -