Sliding film rheometer

Details Sliding film rheometer Sliding film rheometer

1982-06-28

1984-08-21

Goldberg, Gerald

Measuring and testing

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

Viscosity

G01N 1104

Patent

active

044662742

ABSTRACT:
A sliding film rheometer for measuring the viscosity of a molten polymer comprising a measuring cell containing a molten polymer, the cell having a rectangular slit through which is passed a rectangular shaped tape at a constant rate and strain gauges connected to the measuring cell for measuring the shear stress and normal stress produced by pulling the rectangular shaped tape through the molten polymer and through the slit from which the viscosity is calculated. The viscosity measurement provides useful data for obtaining optimum extrusion of said molten polymers.

REFERENCES:
patent: 2849875 (1958-09-01), DeMaria

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