Abstract
Apparent elongational viscosity studies were made on dilute solutions of high molecular weight polymers using a fiber spinning apparatus designed for low shear viscosity liquids with substantial elongational effects. The experimental method involved the flow of solutions of polyacrylamide and poly(ethylene oxide) from a tube into an evacuated vessel. Experimental results showed that the apparent elongational viscosity obtained from the jet shape increased linearly with the stretch rate.
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Lee, J.K., Seo, G.T. Apparent elongational viscosity of dilute polymer solutions. Korean J. Chem. Eng. 13, 554–558 (1996). https://doi.org/10.1007/BF02706020
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DOI: https://doi.org/10.1007/BF02706020