Diffusion Dynamics of HAc from Cellulose Acetate Filament during Coagulation Process

Jiao Li; Jun Song; Jian Hua Cao; Lin Fu Wang; Qing Lan Zhang

doi:10.4028/www.scientific.net/AMR.842.118

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 842Diffusion Dynamics of HAc from Cellulose Acetate...

Diffusion Dynamics of HAc from Cellulose Acetate Filament during Coagulation Process

Abstract:

During dry-wet spinning, diffusion is very important for the formation and mechanical property of fibers. In this paper, the diffusion dynamics of acetic acid (HAc) and water (H₂O) during coagulation process of cellulose acetate filament were investigated in detail. The diffusion coefficients of HAc and H₂O were calculated based on the Ficks first law of diffusion according to the experimental data. Several factors which affect the coagulation process including concentration and temperature of coagulation bath were discussed respectively. The result showed that the diffusion coefficients of HAc and H₂O increased with the increasing coagulation temperature and decreased with the increasing coagulation bath concentration.

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Periodical:

Advanced Materials Research (Volume 842)

Pages:

118-121

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.842.118

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Online since:

November 2013

Authors:

Jiao Li, Jun Song*, Jian Hua Cao, Lin Fu Wang, Qing Lan Zhang

Keywords:

Cellulose Acetate Filament, Coagulation, Diffusion Coefficient, Dry-Wet Spinning

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