Extrusion rheology of rigid PVC
article
Two compounds or rigid PVC, one of the emulsion type, the other of the suspension type, were processed at different temperatures by means of a highly instrumented 30-mm research extruder. During processing, measurements were made of the axial distribution of pressures and temperatures at the inner wall of the barrel, of the axial temperature distribution in the hollow screw and of the radial temperature distribution of the melt close to the screw tip.
The melts were forced through capillaries and slit dies and their viscosity behaviour was measured. Extrudates were subjected to an immersion test in acetone, in which they showed very significant differences in behaviour that depended on the temperatures at which they were processed. These differences did not show up in impact strength or yield strength in stress strain testing. © 1974 Dr. Dietrich Steinkopff Verlag.
The melts were forced through capillaries and slit dies and their viscosity behaviour was measured. Extrudates were subjected to an immersion test in acetone, in which they showed very significant differences in behaviour that depended on the temperatures at which they were processed. These differences did not show up in impact strength or yield strength in stress strain testing. © 1974 Dr. Dietrich Steinkopff Verlag.
TNO Identifier
227623
ISSN
00354511
Source
Rheologica Acta, 13(2), pp. 209-215.
Publisher
Steinkopff-Verlag
Pages
209-215
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