Extensional viscosity modelling for injection molding simulation

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/210477

Title: Extensional viscosity modelling for injection molding simulation
Author(s): Brincat, Paul; Talwar, Kapil; Friedl, Chris
Abstract: Within the injection molding process the molten polymer is forced to extend as it flows through the nozzle and gates. Binding's analytical method was used to quantify an amorphous and semi-crystalline material's resistance to the extensional deformation at the high rate typically experienced in these regions. Conducting these experiments over various temperatures we are able to provide a temperature dependent extensional viscosity for the materials. Using the extensional model developed we are able to provide an improved simulation of the injection molding process.
Publication type: Journal article
Research centre: Swinburne University of Technology. Industrial Research Institute Swinburne
Source: Journal of Reinforced Plastics and Composites, Vol. 18, no. 6 (Apr 1999), pp. 499-507
Publication year: 1999
FOR Code(s): 0912 Materials Engineering; 0913 Mechanical Engineering
Keyword(s): Amorphous materials; Computer simulation; Crystalline materials; Deformation; Extensional viscosity; Injection molding; Mathematical models; Molten materials; Nozzles; Plastics molding; Thermal effects; Viscosity of liquids
Publisher: Sage
ISSN: 0731-6844
Publisher URL: http://dx.doi.org/10.1177/073168449901800602
Peer reviewed