23 Calculate and plot the dependence of the shear stress of the agar jelly on the concentration of the surfactant-isopropyl alcohol. The study was carried out using the conical plastometer method, and the following data were obtained:
Concentration of surfactants C⋅102, kmol / m3 0.0 3.0 6.0 12.0 30.0
Depth of immersion of the cone h⋅102, m 1.08 1.34 1.54 1.81 2.03
The load value F = 9,8⋅10-2 H, the cone constant K = 0,413.
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Questions and problems from the manual:
"Laboratory Workshop on Colloid Chemistry" Nekrasov AP, Veretenchenko BA, Kharkov NTU "KhPI", 2004
"Characteristic properties of disperse systems" Nekrasov AP, Kharkov, 1996
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