The time sweep profiles for formulations containing Avicel CL-611, A - 1% or 2%;
ID: 1767313 • Letter: T
Question
The time sweep profiles for formulations containing Avicel CL-611, A - 1% or 2%; B - 4% or 6%; and commercial cream - C is given. The high G' value of A and B is indicative of____?
Close circles - ', open circles - G' and open triangles - G''
A - low yield stress values needed to initiate flow and the shorter time needed to rebuild structure at rest after shear
B - high yield stress values needed to initiate flow and the shorter time needed to rebuild structure at rest after shear
C- low yield stress values needed to initiate flow and the longer time needed to rebuild structure at rest after shear
D - high yield stress values needed to initiate flow and the longer time needed to rebuild structure at rest after shear
100 B 10000 100 A 1000 100 25e 500 0 1000 1250 15001750 2000 250 500-50 1000 1250 1500 1'50 2000 Time (sec) Time (see) 100 C 10000 1000 100 250 00 50 1000 12 ISe0 1759 2000 Time (sec)Explanation / Answer
Ans: C
Low yiels stress values needed to initiate the flow and the longer time needed to rebuild the structure at rest after shear.
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