The influence of die design and extensional rheology on the onset of 'wave' interfacial instabilities in coextrusion flows

TAPPI - Polymers, Laminations and Coatings Conference

Volumn , Issue , 2001, Pages 529-535

  Zatloukal, Martin ^a   Perdikoulias, John ^b   Tzoganakis, Costas ^c   Sáha, Petr ^a  

^a TOMAS BATA UNIVERSITY IN ZLIN   (Czech Republic)

^b Compuplast Canada Inc ^*  (Canada)

^c UNIVERSITY OF WATERLOO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EXTRUSION DIES; FINITE ELEMENT METHOD; RHEOLOGY;

INTERFACIAL INSTABILITIES;

COEXTRUSION;

EID: 0142210407     PISSN: 1047305X     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (14)

1. Khomami, B. and Ranjbaran, M. M., "Experimental studies of interfacial instabilities in multilayer pressuredriven flow of polymeric melts", Rheol. Acta, 36, 345-366 (1997).
2. Matsunaga, K., Kajiwara, T. and Funatsu, K., "Numerical Simulations of Multi-Layer Flow for Polymer Melts - A Study of the Effects of Viscoelasticity on Interface Shape of Polymers within Dies", Polym. Eng. Sci., 38, 1099-1111 (1998).
3. Mavridis, H. and Shroff, R. N., "Multilayer extrusion: Experiments and computer simulation", Polym. Eng. Sci., 34, 559-569 (1994).
4. Perdikoulias, J., Richard, C., Vlcek, J. and Vlachopoulos, J., "A study of coextrusion flows in polymer processing", SPE ANTEC, 2461-2464 (1991).
5. Perdikoulias, J., "Analysis and design of annular dies for mono- and multi-layer polymer flows", pH thesis, University of Waterloo, Waterloo, Ontario (1997).
6. Perdikoulias, J. and Tzoganakis, C., "Interfacial instabilities during coextrusion of LDPEs", SPE ANTEC, 351-355 (1997).
7. Ramanathan, R., Shanker, R., Rehg, T., Jons, S., Headley S. and Schrenk, W., "Wave pattern instabilities in multilayer coextrusion - an experimental investigation", SPE ANTEC, 224-228 (1996).
8. Rincon, A. J., Hrymak, A.N. and Vlachopoulos, J.,"Transient finite element analysis of generalized Newtonian coextrusion flows in complex geometries", Int. J. Numer. Meth. Fluids 28, 1159-1181 (1998).
9. Shanker, R. and Ramanathan, R., "Effect of die geometry on flow kinematics in extrusion dies", SPE ANTEC, 65-68 (1995).
10. Zatloukal, M., Tzoganakis, C. and Vlček, J., "Predicting the onset of interfacial instabilities in coextrusion flows", TAPPI's 7th European PLC Symposium, 258-264 Prague (1999).
11. Tzoganakis, C., Zatloukal, M., Perdikoulias, J., Saha, P., "Viscoelastic stress calculation in multilayer coextrusion dies", SPE ANTEC, 46-50 (2000).
12. Kihara, S., Gouda, T., Matsunaga, K. and Funatsu, K., "Numerical Simulation of Three-Dimensional Viscoelastic Flow Within Dies", Polym. Eng. Sci., 39, 152-163 (1999).
13. Simhambhatla, M. and Leonov, A.I., "On the rheological modeling of Viscoelastic polymer liquids with stable constitutive equations", Rheol. Acta, 34, 259-273 (1995).
14. TM - User's manual, Compuplast International, Inc. (1999).