ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A dual chamber capillary viscometer (DCCV) has been designed and constructed to measure steady shear viscosity of concentrated polymer solutions at temperatures above the solution normal boiling point. Projected equipment capabilities are as follows: Shear rate: 102≤γ(overdot)≤104 s−1, Viscosity: 10−1≤η≤104 Pa s, Temperature: 300 ≤T≤520 K. Equipment design and results using Newtonian viscosity standards and various Newtonian polymer solutions are presented. Viscosity results determined with Newtonian standards are within ±5% or better of the reported values and two different concentrated polymer solutions and a paper coating (a suspension of clay in a starch-water solution) were used to test the equipment capabilities over wide ranges of shear rate, viscosity, and temperature. The ranges of equipment capabilities tested to date are Shear rate: 300≤γ≤5500 s−1, Viscosity: 0.12≤η≤7.5 Pa s, Temperature: 299≤T≤399 K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1138626
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