Understanding melt rheology and foamability of polypropylene-based TPO blends

Journal of Cellular Plastics

Volumn 44, Issue 4, 2008, Pages 307-325

  Gunkel, F ^a   Sporrer A N J ^a   Lim, G T ^a   Bangarusampath, D S ^a   Altstadt V ^a  

^a UNIVERSITY OF BAYREUTH   (Germany)

Author keywords

Blends; Ethylene octene copolymer; Foam injection molding; Polypropylene; Viscosity and melt strength

Indexed keywords

CHEMICALS; COLLOIDS; LIGHT WEIGHT EQUIPMENT; PRESSURE; PUMPING PLANTS; RESINS; RUBBER APPLICATIONS; SHEAR STRENGTH; THERMOPLASTICS; VISCOSITY;

ENGINEERING APPLICATIONS; FOAMABILITY; HIGH PRESSURE (HP); LIGHT WEIGHT STRUCTURES (LLB); MATERIAL COSTS; MELT RHEOLOGY; MELT STRENGTH; POLYPROPYLENE (PP); RUBBER-TOUGHENED;

PLASTIC PRODUCTS;

EID: 46349089998     PISSN: 0021955X     EISSN: 15307999     Source Type: Journal    
DOI: 10.1177/0021955X08088858     Document Type: Article

References (22)

1. Shah, S. and Kakarala, N. (2000). Requirements for Rapid Growth of all Olefinic Automotive Interiors, Annual Technical Conference - Society of Plastics Engineers, 58: 2638-2645.
2. Angell, R.G. Union Carbide Corporation (New York, NY) (1966). Method and Apparatus for Injection Molding of Foamed Plastic Articles, 291898 U.S. Patent 3268636.
3. Krytsis, W.T. and Simmonds, R.C. USM corporation (Boston, MA) (1974). Method of Injection Molding Articles of Foam Material, 220208 U.S. Patent 3801686.
4. Blizard, K., Okamoto, K.T. and Anderson, J.R. Trexel, Inc. (Woburn, MA) (2001). Microcellular Articles and Methods of Their Production, 564264 U.S. Patent 6294115.
5. Michaeli, W. and Habibi-Naini, S. (2003). Investigations on Foam Injection Moulding with a Special Injection Nozzle, Blowing Agents and Foaming Processes, 5: 79-89.
6. Klempner, H. and Sendijarevic, V. (2004). Polymeric Foams And Foam Technology, Hanser Verlag, Mnchen, ISBN 1-56990-336-0.
7. Kumar, V. and Suh, N.P. (1990). A Process for Making Microcellular Thermoplastic Parts, Polymer Engineering and Science, 30 (20). 1323-1329.
8. Park, C.B., Behravesh, A.H. and Venter, R.D. (1998). Low Density Microcellular Foam Processing in Extrusion using CO2, Polymer Engineering and Science, 38 (11). 1812-1823.
9. McInerney, L.F., Kao, N. and Bhattacharya, S.N. (2003). Melt Strength and Extensibility of Talc-filled Polypropylene, Polymer Engineering and Science, 43 (12). 1821-1829.
10. McNally, T., McShane, P., Nally, G.M., Murphy, W.R., Cook, M. and Miller, A. (2002). Rheology, Phase Morphology, Mechanical, Impact and Thermal Properties of Polypropylene/Metallocene Catalysed Ethylene 1-Octene Copolymer Blends, Polymer, 43 (13). 3785-3793.
11. Macosko, C.W. (1994). Rheology: Principles, Measurements, and Applications, VCH Publishers, Inc., New York, ISBN 1-56081-579-5.
12. Wagner, M.H., Schulze, V. and Gottfert, A. (1996). Rheotens-mastercurves and Drawability of Polymer Melts, Polymer Engineering and Science, 36 (7). 925-935.
13. Wagner, M.H., Bernnat, A. and Schulze, V. (1998). The Rheology of the Rheotens Test, Journal of Rheology, 42 (4). 917-928.
14. Acobsen, K. and Pierick, D. (2000). Microcellular Foam Molding: Advantages and Application Examples, Annual Technical Conference - Society of Plastics Engineers, 58: 1929-1933.
15. Muller, N. and Ehrenstein, G.W. (2004). Evaluation and Modeling of Injection-molded Rigid Polypropylene Integral Foam, Journal of Cellular Plastics, 40 (1). 45-59.
16. Suhm, J., Maier, R.D., Kressler, J. and Mulhaupt, R. (1998). Microstructure and Pressure-Volume-Temperature Properties of Ethene/1-Octene Random Copolymers, Acta Polymerica, 49 (2-3). 80-87.
17. http://www.goettfert.com (2005). Rheotens 71.97 manual, Gttfert.
18. Li, G., Gunkel, F., Wang, J., Park, C.B. and Altstdt, V. (2007). Solubility Measurements of N2 and CO2 in Polypropylene and Ethene/Octene Copolymer, Journal of Applied Polymer Science, 103 (5). 2945-2953.
19. Kim, S.G., Lee, J.W.S., Park, C.B. and Sain, M. (2007). Strategies for Enhancing Cell Nucleation of Thermoplastic Polyolefin (TPO) Foam, Annual Technical Conference - Society of Plastics Engineers, 65: 2099-2104.
20. Colton, J.S. and Suh, N.P. (1987). The Nucleation of Microcellular Thermoplastic Foam with Additives.1. Theoretical Considerations, Polymer Engineering and Science, 27 (7). 485-492.
21. Sahagun, C.Z., Gonzalez-Nunez, R. and Rodrigue, D. (2006). Morphology of Extruded PP/HDPE Foam Blends, Journal of Cellular Plastics, 42 (6). 469-485.
22. Okamoto, K.T. (2003). Microcellular Processing, Hanser Verlag, Munich, ISBN 3-446-22344-4.