131.Solving a chemistry problem
24 Construct the rheological curve of the nitrocellulose solution in acetone in the coordinates P⋅τ = f (P), using the experimental data obtained with the Ubbelohde viscometer:
Voltage P⋅10-2, Pa 1,0 2,0 8,0 16,0 24,0 40,0
Time of solution outflow τ, s 340,0 159,0 39,0 17,8 10,8 6,5
Determine the ultimate stress on the shear Pm.
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