Accession Number : ADA140451

Title :   Development of Methods of Evaluation Extensional Properties of Polymer Solutions from Measurements of Shear.

Descriptive Note : Technical rept. Apr 82-Apr 83,

Corporate Author : RHEOLOGY RESEARCH GAITHERSBURG MD

Personal Author(s) : Kearsley,E A

PDF Url : ADA140451

Report Date : Jun 1983

Pagination or Media Count : 32

Abstract : Although large extensional flow components occur in many important technological processes of liquids, there is no currently suitable device to measure the elongational properties of polymer solutions. To obtain such measurements the BKZ model of the mechanical behavior of polymer solutions was formulated to infer extensional properties from shear measurements. Both the technique and its limitations are discussed in this report. Stress relaxation measurements of five solutions were taken and show promise for the practicality of this procedure for inferring extensional fluid properties. (Author)

Descriptors :   *Polymers, *Solutions(Mixtures), *Flow, *Elongation, *Shear properties, Measurement, Stress relaxation, Elastic properties, Energy, Loads(Forces), Polymethyl methacrylate, Ethyl radicals, Malonates, Rheology, Models, Mathematical analysis

Subject Categories : Plastics
      Fluid Mechanics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE