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http://dx.doi.org/10.12925/jkocs.2019.36.4.1050

Self Diffusions and Rheological Properties of Polyamide Polymer Materials in Various Solvents  

Kim, Nam Jeong (Department of Chemistry & Life Science, Sahmyook University)
Publication Information
Journal of the Korean Applied Science and Technology / v.36, no.4, 2019 , pp. 1050-1059 More about this Journal
Abstract
The self diffusion, hole volume, and flow thermodynamic parameters of polyamide fibers were calculated from rheological parameters and crystallite size in order to study of flow segments in amorphous region. The stress relaxation of polyamide filament fibers were carried out in air and various solvents at various temperatures using the tensile tester with the solvent chamber. The rheological parameters were obtained by applying the experimental stress relaxation curves to the theoretical equation of the Ree-Eyring and Maxwell non-Newtonian model. It was observed that the rheological parameters of these polyamide filament fibers are directly related to the relaxation spectra, self diffusion, viscosities, and activation energies of flow segments.
Keywords
polyamide fibers; self diffusion; hole volume; thermodynamic parameters; stress relaxation; rheological parameters;
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