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MIXER VISCOMETER CONSTANT (k) FOR THE BROOKFIELD SMALL SAMPLE ADAPTER AND FLAG IMPELLER
Author(s) -
BRIGGS JENNI L.,
STEFFE JAMES F.
Publication year - 1996
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1996.tb01000.x
Subject(s) - viscometer , impeller , adapter (computing) , viscosity , constant (computer programming) , analytical chemistry (journal) , materials science , mechanics , mathematics , chemistry , chromatography , physics , composite material , electrical engineering , engineering , computer science , programming language
The mixer viscometer constant (k 1 ) of a Brookfield viscometer equipped with a flag impeller and small sample adapter was determined using the slope and matching viscosity methods. Results showed that k’ was equal to a constant value of 2.92 rad −1 using the slope method and found to be a function of angular velocity (Ω), k’= 2.54(Ω) −0.176 , using the matching viscosity method. An example problem illustrating how the mixer viscometry principle can be used to determine the relationship between apparent viscosity and average shear rate is presented.