Results 201 to 210 of about 12,657 (289)

Numerical Simulation of Three‐Dimensional Unsteady Extrudate Swell Through Annular Dies: Effects of Die Core Opening Position and Sag on Parison Formation

open access: yesPolymer Engineering &Science, EarlyView.
Study on transient parison formation at various strokes during extrusion of Newtonian and viscoelastic fluids. In the presence of an offset between the mandrel and the bushing, Newtonian fluids exhibit a reduction in extrudate diameter, whereas viscoelastic fluids display diameter swelling only at flow rates exceeding a critical threshold.
Kalonji K. Kabanemi   +2 more
wiley   +1 more source

Improved Inverse Identification of Anisotropic Polymer Properties via FEMU and VFM With Sensitivity Analysis

open access: yesPolymer Engineering &Science, EarlyView.
Heterogeneous biaxial testing for anisotropic elastic properties identification from full displacement field. ABSTRACT The stretch‐blowing process of PET bottles induces significant anisotropy in mechanical properties due to the differential elongation of macromolecular chains.
Thanh Tung Nguyen   +3 more
wiley   +1 more source

A Simplified Polymerization Model for Fluorinated Polymers: Average Microstructural Properties and Recipe Optimization

open access: yesPolymer Engineering &Science, EarlyView.
A model‐based strategy for the design of the emulsion polymerization recipe for a fluoroelastomer, namely Tecnoflon, is reported. This ensures target average microstructural properties like number‐average molecular weight, number of iodine end‐groups and number of bridges per chain can be obtained and preserved all along the reaction.
Luca Fois   +4 more
wiley   +1 more source

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