TY - JOUR
AU1 - Yang, Xiaoping
AU2 - Wang, Shi-Qing
AU3 - Halasa, Adel
AU4 - Ishida, H.
AB -  When a stick-slip transition of an extremely large magnitude occurs in capillary flow of a highly entangled melt, a significant flow can be generated in the barrel. At a constant piston pressure, this barrel flow reduces the actual pressure available at the die entry that produces the capillary flow in the die. Experiments on linear monodisperse polybutadienes (PBd) show that a significant correction due to this barrel flow must be made to obtain a reliable characterization of the interfacial stick-slip transition. The interfacial flow discontinuity transition exhibits hysteresis behavior similar to that of linear polyethylenes. When a large pressure loss occurs in the barrel due to a massive stick-slip transition, the die wall stress may drop below the hysteresis loop, causing a new self-regulated flow oscillation to take place at a constant applied pressure.
TI - Fast flow behavior of highly entangled monodisperse polymers
JF - Rheologica Acta
DO - 10.1007/s003970050129
DA - 1998-11-05
UR - https://www.deepdyve.com/lp/springer-journals/fast-flow-behavior-of-highly-entangled-monodisperse-polymers-YNBzpGlPZj
SP - 424
EP - 429
VL - 37
IS - 5
DP - DeepDyve
ER -