Analyses of dynamic rheological behavior of polymer melt based on novel experimental equipment and procedures
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By introducing a vibrating, force field into the extrusion process of polymer melt, an experimental equipment of constant velocity type dynamic rheometer of capillary (CVDRC) was designed. A set of experimental procedures was established, by which the dynamic rheological parameters of polymer can be acquired, and a set of data management methods to undergo time-domain or frequency-domain analysis was set up for dynamic rheological data of polymer melt. Meantime, the characterization formula of polymer melt’s rheological behavior in a vibrating force field was set up. The instantaneous value of capillary entry pressure, capillary volume flow rate and their phase difference were measured and analyzed, and the melt apparent viscosity, which describes the rheological behavior of polymer melt in a vibrating force field, was obtained.
Key wordspolymer melt vibrating force field rheological behavior measurement characterization formula
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- J D Ferry.Viscoelastic Properties of Polymer. New York: Willey, 1967: 102–132Google Scholar
- C D Han.Rheology in Polymer Processing. New York: Academic Press, 1976: 1–11Google Scholar
- R Tanner.Engineering Rheology. London: Oxford University Press, 1984: 1–26Google Scholar
- K L Seon, A J Giacomin. Dynamic Slip and Nonlinear Viscoelasticity.Polymer Engineering and Science, 2000, 40(12): 507–524Google Scholar
- G Vlastos, D Lerche, B Koch, O Samaba. The Effect of Parallel Combined Steady Anti Oscillatory Shear Flows on Blood and Polymer Solutions.Rheologica Acta, 1997, 36(2): 160–168Google Scholar
- Y J Liu.Studies on Viscoelastic Behaviors of Polymer Melt under the Vibration Force Field. Guangzhou South China University of Technology Press, 2002: 24–49Google Scholar
- Y J Liu, J P Qu. Relationship between Shear Stress and Shear Strain of Polymer Melt under Vibrating Force Field.Plastics, Rubber and Composites, 2004, 2/3Google Scholar
- Y J Liu, J P Qu. Effect of Vibration Force Field on Rheological Behavior of Polymer Melt—I. Capillary Pressure Drop and Apparent ViscosityChina Plastics, 2003, 17(9): 12–15Google Scholar