Polymeric solutions rheometer

Details Polymeric solutions rheometer Polymeric solutions rheometer

2005-10-04

2005-10-04

Garber, Charles (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

Reexamination Certificate

active

06951128

ABSTRACT:
A method for determination of the extensional rheological properties of a liquid comprises application to a sample of liquid in a closed system of a pulsed oscillatory alternating flow in a geometry creating an extension flow surrounding a stagnation point and measuring the pressure drop in the liquid across the stagnation point. The alternating displacement may be applied from the ends of each limb in a given direction simultaneously, thereby providing symmetrical flow. The method may be carried out on very small sample volumes of dilute polymer solutions.

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Kapoor et al. “Dynamic and Extensional Properties of Starch in Aqueous Dimethylsulfoxide”Carbohydrate Polymers2000, 42, 323-335.

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