Low-Shear-Rate Capillary Viscometer for Polymer Solution Intrinsic Viscosity Determination at Varying Temperatures
Document Type
Article
Publication Date
1-1-2003
Department
Polymers and High Performance Materials
Abstract
A low-shear capillary viscometer has been designed, constructed, and used to measure polymer solution intrinsic viscosities over temperatures ranging from 10 to 75 degreesC. The instrument is capable of detecting the small shear stress forces produced when low-viscosity fluids are subjected to very low-shear rates. Instrument performance and sensitivity were evaluated using deionized water at temperatures between 10 and 75 degreesC. The measured water viscosity values differed from the literature values by less than 1%. The viscometer was also used to determine that the intrinsic viscosity of a poly(acrylamide) aqueous solution at 29 degreesC was 17.7 dL/g. This value was in agreement with the value obtained using a Contraves Low-Shear 30 cup and bob rheometer, 17.9 dL/g. (C) 2003 American Institute of Physics.
Publication Title
Review of Scientific Instruments
Volume
74
Issue
1
First Page
176
Last Page
181
Recommended Citation
Rushing, T.,
Hester, R. D.
(2003). Low-Shear-Rate Capillary Viscometer for Polymer Solution Intrinsic Viscosity Determination at Varying Temperatures. Review of Scientific Instruments, 74(1), 176-181.
Available at: https://aquila.usm.edu/fac_pubs/4510