|
Korean Journal of Chemical Engineering, Vol.13, No.6, 554-558, 1996
APPARENT ELONGATIONAL VISCOSITY OF DILUTE POLYMER SOLUTIONS
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.
[References]
- Adachi K, J. Non-Newton. Fluid Mech., 24, 11, 1987
- Astarita G, Nicodemo L, Chem. Eng. J., 1, 57, 1970
- Baid KM, Metzner AB, Trans. Soc. Rheol., 21, 237, 1977
- Chang JC, Denn MM, J. Non-Newton. Fluid Mech., 5, 369, 1979
- Chow A, Keller A, Muller AJ, Odell JA, Macromolecules, 21, 250, 1988
- Cottrell FR, Merill EW, Smith KA, J. Polym. Sci. A: Polym. Chem., 7, 1415, 1969
- Fuller GG, Cathey CA, J. Rheol., 31, 235, 1987
- Gupta RK, Sridhar T, "Elongational Rheometers," Rheological Measurement, Collyer, A.A. and Clegg, D.W., eds., Elsevier Applied Science, New York, 1988
- Hudson NE, Ferguson J, Mackie O, Trans. Soc. Rheol., 18, 541, 1974
- MacSporran WC, J. Non-Newton. Fluid Mech., 8, 119, 1981
- Metzner AB, Metzner AP, Rheol. Acta, 9, 174, 1970
- Mewis J, Cleyn GD, AIChE J., 28, 900, 1982
- Moore CA, Pearson JRA, Rheol. Acta, 14, 436, 1975
- Odell JA, Muller AJ, Keller A, Polymer, 29, 1179, 1988
- Oliver DR, Bragg R, Rheol. Acta, 13, 830, 1974
- Spearot JA, Metzner AB, Trans. Soc. Rheol., 16, 495, 1972
- Sridhar T, Gupta RK, Rheol. Acta, 24, 207, 1985
- Vissmann K, Berwersdorff H, J. Non-Newton. Fluid Mech., 34, 289, 1990
- White JM, Polym. Eng. Rev., 1, 297, 1981
|