Measurements of Elongational Viscometry Using a Fiber Spinning Technique. Part 1. Modifications to the Sangamo Schlumberger Elongational Viscometer Model E4

摘要

The Sangamo-Schlumberger Elongational Viscometer (Model E4), as delivered by the manufacturer, did not maintain a constant elongational load under constant flow conditions and consequently could not be used to accurately measure elongational viscosity. The extensive modifications made to the instrument at DRES to correct his problem are described in detail as are other improvements made to the instrument.