Slot coating of mildly viscoelastic liquids
(PDF) Effect of Mild Viscoelasticity in Slot Coating's Low ...
In this work, the low-flow limit of slot coating of mildly viscoelastic liquids, that can be represented by Boger liquids, is examined by solving the conservation of momentum and continuity ... Journal of Non-Newtonian Fluid Mechanics | Vol 138, Issues ... select article Slot coating of mildly viscoelastic liquids. Research article Full text access Slot coating of mildly viscoelastic liquids. O.J. Romero, L.E. Scriven, M.S. Carvalho. Pages 63-75 Download PDF. Article preview. select article Non-isothermal viscoelastic numerical model of the cast-film process. Operability windows in viscoelastic slot coating flows ... The viscoelastic-capillary model to predict approximately coating windows for the stable operations of viscoelastic coating liquids is derived using a lubrication approximation in slot coating processes. A computational study of the effect of viscoelasticity on ...
Journal of Non-Newtonian Fluid Mechanics (v.138, #2-3) | www.chemweb.com
M. S. Carvalho - Google Scholar Citations Low-flow limit in slot coating of dilute solutions of high molecular weight polymer. ... Slot coating of mildly viscoelastic liquids. OJ Romero, LE Scriven, MS Carvalho. ... Forward roll coating flows of viscoelastic liquids. GA Zevallos, MS Carvalho, M Pasquali. FUNDAMENTALS OF SLOT COATING PROCESS - pstc.org Slot coating is commonly used in the manufacturing of adhesive and magnetic tapes, specialty papers, optical films, and many other products. In this process, the coating liquid is pumped to a coating die in which an elongated chamber distributes it across the width of a narrow slot through which the flow rate
The knowledge of the wetting characteristics of a coating solution is a prerequisite of assuring the final quality of thin films manufactured by the slot die coating process. Because the maximum coating speed is limited by defects, such as air entrainment, which are directly related to film quality, an understanding of the coating limits is ...
Since liquids are normally incompressible, an increase in pressure doesn't really bring the molecules significantly closer together. Simple models of molecular interactions won't work to explain this behavior and, to my knowledge, there is no generally accepted more complex model that does. Flow of Oldroyd-B Viscoelastic Fluid Many complex fluids of interest exhibit a combination of viscous and elastic behavior under strain.The Oldroyd-B fluid presents one of the simplest constitutive models capable of describing the viscoelastic behavior of dilute polymeric solutions under general flow conditions. Three-Element Viscoelastic Models - Wolfram Demonstrations… Mathematical models of linear viscoelasticity are frequently presented and explained using a mechanical analog composed of springs and dashpots. The three-element solid array, having two springs and a dashpot, is the simplest analog that exhibits realistic creep, relaxation, and straining...
Operability windows in viscoelastic slot coating flows using a simplified viscoelastic ...
Coater Die Design and Coating Quality Evaluation in the Machine Direction of Slot ... Coater Die Design and Coating Quality Evaluation in the Machine Direction of Slot Coating Through Computer Simulation slot ... "Slot coating of mildly viscoelastic liquids", J. Non-Newtonian Fluid Mechanics, 138, 63 ...
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