Flow Patterns in Elastomers and Their Carbon Black Compounds during Extrusion through Dies
1985 ◽
Vol 58
(4)
◽
pp. 815-829
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Keyword(s):
Abstract A basic study of flow patterns in elastomers in the entrance region of a die has been carried out for various gum elastomers including emulsion and solution butadiene—styrene copolymers, polybutadiene, and natural rubber. All exhibit streamline flow into the entrance with the exception of a cold mastication degraded natural rubber which gave evidence of vortices in corners. A study of a die with a sharp diverging region showed dead spaces for all the elastomers. Carbon black compounds all exhibited converging streamline flow in a 180° entrance angle die and stagnant regions in the sharply diverging die. Evidence based on marker motions has been presented for slip in elastomer compounds in the entrance region.
Keyword(s):
1954 ◽
Vol 27
(4)
◽
pp. 996-1004
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1955 ◽
Vol 28
(3)
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pp. 895-905
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Keyword(s):
Keyword(s):
1951 ◽
Vol 24
(2)
◽
pp. 381-383
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Keyword(s):
1946 ◽
Vol 19
(1)
◽
pp. 100-122
◽
Keyword(s):
1996 ◽
Vol 54
◽
pp. 174-175