Application of Rheology to Polymer Processing
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Polymer processing consists of nmeltlng or dissolving a polymeric material, shaping it, then solidifying. The choice Of whether a melt or solution technique is used depends on, a) chemical stability, and b) the ability of the ability to melt or dissolve. For example, polyethylene is generally melt processed since it is stable in the melt but only soluble with some difficulty. Polyacrylonitrile and its copolymers, in comparison, are soluble but infusible, so that they are always processed in solution.
KeywordsShear Rate Deborah Number Elongational Viscosity Newtonian Flow Extensional Stress
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- 2.Vinogradov, G.V. & Malkin, A, Ya., Rheology ofPolymers, Mir Publishers, Moscow.Google Scholar
- 3.Strughnski, M.J. & Graessley, W.W., (1985) Effects of Polydispersity on the Linear Viscoelastic Properties of Entangled Polymers. 1 Experimental Observations for Binary Mixtures of Linear Polybutadiene, Macr°omolecules, 24, 749 - 758.Google Scholar
- 4.Ferguson, J. & Kemblowski, Z(1991) Applied Fluid Rheology, Chapman & Hall, London.Google Scholar
- 8.Fano, G. (1908) The tubeless siphon, Arch. Fisiol., 5, 365 - 368.Google Scholar
- 13.Mlallkin, A.Ya, Private communication. Google Scholar