Viscous and elastic effects in polymer coextrusion

Journal of Plastic Film and Sheeting

Volumn 19, Issue 2, 2003, Pages 111-122

  Dooley, Joseph ^a   Rudolph, Luciana ^a  

^a DOW CHEMICAL COMPANY   (United States)

Author keywords

Circular channel; Coextrusion; Elastic effects; Layer deformation; Polyethylene; Square channel; Storage modulus ratio; Viscous effects

Indexed keywords

COEXTRUSION; ELASTIC MODULI; ELASTICITY; MULTILAYERS; PLASTIC FILMS; VISCOSITY;

CIRCULAR CHANNEL; ELASTIC EFFECT; LAYER DEFORMATION; SQUARE CHANNEL; STORAGE MODULUS RATIO; VISCOUS EFFECT;

POLYETHYLENES;

EID: 0347656857     PISSN: 87560879     EISSN: None     Source Type: Journal    
DOI: 10.1177/8756087903039575     Document Type: Article

References (22)

1. Thomka, L.M., and Schrenk, W.J. (1972). Tooling for Flat-die Coextrusion. Modern Plastics, 49: 62.
2. Han, C.D. (1975). A Study of Coextrusion in a Circular Die, J. Appl. Poly. Sci., 19(7): 1875.
3. Schrenk, W.D. (1974). Multilayer Film from a Single Die, Plastics Engg., 30(3): 65.
4. Caton, J.A. (1971). Extrusion Die Design for Cast Film Production, British Plas., 44(3): 95.
5. Thomka, L.M. (1973). Multi-color Marketing Plus Comes From New Films, Sheet, Pkgg. Engg., 18(2): 60.
6. Finch, C.R. (1979). Price/Property Performance Advantages of Coextruded Products, Plastics Design Forum, 4(6): 59.
7. Southern, J.H. and Ballman, R.L. (1973). Stratified Bicomponent Flow of Polymer Melts in a Tube. Appl. Polym. Sci., 20: 175.
8. Everage, A.E. (1973). Theory of Stratified Bicomponent Flow of Polymer Melts. I. Equilibrium Newtonian Tube Flow, Trans. Soc. Rheo., 17(4): 629.
9. Lee, B.L. and White, J.L. (1974). An Experimental Study of Rheological Properties of Polymer Melts in Laminar Shear Flow and of Interface Deformation and Its Mechanism in Two-Phase Stratified Flow, Trans. Soc. Rheo., 18(3): 467.
10. Southern, J.H. and Ballman, R.L. (1975). Additional Observations on Stratified Bicomponent Flow of Polymer Melts in a Tube, J. Poly. Sci., 13(4): 863.
11. Khan, A.A. and Han, C.D. (1976). On the Interface Deformation in the Stratified Two-Phase Flow of Viscoelastic Fluids, Trans. Soc. Rheo., 20(4): 595.
12. Han, C.D. (1981) Multiphase Flow in Polymer Processing, Academic Press, New York.
13. Dooley, J. and Hilton, B.T. (1994). Layer Rearrangement in Coextrusion, Plastics Engg., 50(2): 25.
14. Dooley, J. and Ramanathan, R. (1994). Coextrusion Layer Thickness Variation - Effect of Geometry on Layer Rearrangement, SPE-ANTEC Technical Papers, 40: 89.
15. Dooley, J. and Hughes, K. (1996). Thickness Variation in Coextruded Layers - Effect of Polymer Viscoelasticity on Layer Uniformity, TAPPI Journal, 79(4): 235.
16. Dooley, J. and Dietsche, L. (1996). Numerical Simulation of Viscoelastic Polymer Flow - Effect of Secondary Flows on Multilayer Coextrusion, Plastics Engg., 52(4): 37.
17. Dooley, J. and Hughes, K.R. (1996). Analyzing the Flow Through Dies Containing Different Channel Geometries, SPE-ANTEC Technical Papers, 42: 236.
18. Debbaut, B., Avalosse, T., Dooley, J. and Hughes, K. (1997). On the Development of Secondary Motions in Straight Channels Induced by the Second Normal Stress Difference: Experiments and Simulations, J. of Non-Newtonian Fluid Mech., 69(2): 255.
19. Dooley, J., Hyun, K.S. and Hughes, K.R. (1998). An Experimental Study on the Effect of Polymer Viscoelasticity on Layer Rearrangement in Coextruded Structures, Polym. Engg. and Sci., 38(7): 1060.
20. Zryd, J.L. and Dooley, J. (1998). Relative Effects of Viscous and Elastic Forces on Layer Thickness Uniformity in Coextrusion, TAPPI Polymers, Laminations, and Coatings Conference, 823.
21. Debbaut, B. and Dooley, J. (1999). Secondary Motions in Straight and Tapered Channels: Experiments and 3-D Finite Element Simulation with a Multi-Mode Differential Viscoelastic Model. J. of Rheol., 43(6): 1525.
22. Dooley, J. and Hughes, K. (2000) Measurement of Layer Defomlation in Coextrusion Using Unique Feedblock Technology. SPE-ANTEC Technical Papers, 46: 36.