Effect of supercritical gas on crystallization of linear and branched polypropylene resins with foaming additives

Industrial and Engineering Chemistry Research

Volumn 44, Issue 17, 2005, Pages 6685-6691

  Naguib, Hani E ^a,b   Park, Chul B ^a,b   Song, Seung Won ^a,b  

^a UNIVERSITY OF TORONTO   (Canada)

^b Maytag Appliance Division   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COOLING RATES; DISPERSED ADDITIVES; HYDRAULIC PRESSURE; SUPERCRITICAL GAS;

ADDITIVES; CRYSTALLIZATION; DIFFERENTIAL SCANNING CALORIMETRY; HELIUM; HYDRAULICS; POLYPROPYLENES;

SUPERCRITICAL FLUIDS;

CRYSTALLIZATION; SUPERCRITICAL CARBON DIOXIDE;

EID: 24144492998     PISSN: 08885885     EISSN: None     Source Type: Journal    
DOI: 10.1021/ie0489608     Document Type: Article

References (43)

1. Leaversuch, R. D. Modern Plastics; Canon Communications LLC, 1996; Vol. 73, p 52.
2. Park, C. B.; Cheung, L. K. A study of cell nucleation in the extrusion of polypropylene foams. Polym. Eng. Sci. 1997, 37, 1.
3. Bradley, M. B.; Phillips, E. M., Novel Polypropylene for Foaming on Conventional Equipment. SPE ANTEC Tech. Papers 1990, 36, 717.
4. Park, J. J.; Katz, L.; Gaylord, N. G. U.S. Patent 5,116,881, 1992.
5. Panzer, U. Development of High Melt Strength Polypropylene Foams. Specialty polyolefins SPO 98, 1998.
6. Rätzsch, M.; Panzer, U.; Hesse, A.; Bucka, H. Developments in High Melt Strength PP: Technology, Properties, Applications and Markets. SPE ANTEC Tech. Papers 1999, 45, 2071.
7. Park, P. Unique Reactor Made High Melt Strength PP Resins for Microcellular Foamed Applications. Proc. Foamplas 2000 2000, 35.
8. De Nicola, A. J.; Galombos, A. F.; Wolcowicz, M. D. Radiation treatment of polypropylene Polym. Mater. Sci. Eng. 1992, 67, 106.
9. Wang, X.; Tzoganakis, C.; Rempel, G. L. Chemical modification of polypropylene with peroxide/pentaerythritol triacrylate by reactive extrusion. J. Appl. Polym. Sci. 1996, 61, 1395.
10. Naguib, H. E.; Song, S.-W.; Park, C. B.; Byon, Y.-J. Effect of Supercritical Carbon Dioxide and Nitrogen on Crystallization of Linear and Branched Propylene Resins Filled with Foaming Agents. SPE ANTEC Technol. Papers 2000, 1867.
11. Park, C. B.; Baldwin, D. F.; Suh, N. P. Effect of the pressure drop rate on cell nucleation in continuous processing of microcellular polymers. Polym. Eng. Sci. 1995, 35, 432.
12. Park, C. B.; Suh, N. P. Filamentary extrusion of microcellular polymers using a rapid decompressive element. Polym. Eng. Sci. 1996, 36, 34.
13. 2 and Isopentane. Cell. Polym. 1998, 17, 221.
14. Menczel, J.; Varga, J. Influence of Nucleating-agents on Crystallization of Polypropylene. 1. Talc as a Nucleating-agent. J. Therm. Anal. 1983, 28, 161.
15. Velasco, J. I.; de Saja, J. A.; Martinez, A. B. Crystallization behavior of polypropylene filled with surface-modified talc. J. Appl. Polym. Sci. 1996, 61, 125.
16. Cook, M.; Harper, J. F. The influence of magnesium hydroxide morphology on the crystallinity and properties of filled polypropylene. Adv. Polym. Technol. 1998, 17, 53.
17. Beck, H. N. Heterogeneous nucleating agents for poly-propylene crystallization. J. Appl. Polym. Sci. 1967, 11, 673.
18. Mitsuishi, K.; Ueno, S.; Kodama, S.; Kawasaki, H. Crystallization behavior of polypropylene filled with surface-modified calcium carbonate. J. Appl. Polym. Sci. 1991, 43, 2043.
19. Khare, A.; Mitra, A.; Radhakrishnan, S. Effect of CaCO3 on the Crystallization Behavior of Polypropylene. J. Mater. Sci. 1996, 31, 5691.
20. Dey, S. K.; Jacob, C.; Biesenberger, J. A. Effect of Physical Blowing Agents on Crystallization Temperature of Polymer Melts. SPE ANTEC Tech. Papers 1994, 2197.
21. Zhang Z.; Handa, Y. P. An in situ study of plasticization of polymers by high-pressure gases. J. Polym. Sci., Part B: Polym. Phys. 1998, 36, 977.
22. 2 gas. J. Appl. Polym. Sci. 1985, 30, 3911.
23. Handa, Y. P.; Lampron, S.; O'Neill, M. On the plasticization of poly(2,6-dimethyl phenylene oxide) by CO2. J. Polym. Sci., Part B: Polym. Phys. 1994, 32, 2549.
24. Handa, Y. P.; Kruus, P.; O'Neill, M. High-pressure calorimetric study of plasticization of poly(methyl methacrylate) by methane, ethylene, and carbon dioxide. J. Polym. Sci., Part B: Polym. Phys. 1996, 34, 2635.
25. 2 on Phase Transitions and Polymorphism in Syndiotactic Polystyrene. Macromolecules 1997, 26, 8499.
26. 2 on the Polymorphism in Syndiotactic Polystyrene. SPE ANTEC Tech. Papers 1998, 44, 1411.
27. He J.; Zoller, P. Crystallization of polypropylene, nylon-66 and poly(ethylene terephthalate) at pressures to 200 MPa: Kinetics and characterization of products. J. Polym. Sci., Part B: Polym. Phys. 1994, 32, 1049.
28. 2-Assisted Melting of Semi-crystalline Polymers. Macromolecules 1997, 30, 8505.
29. 2-induced crystallization of poly(ethylene terephthalate). Polymer 1987, 28, 1298.
30. Beckman, E.; Porter, R. S. Crystallization of bisphenol a polycarbonate induced by supercritical carbon dioxide. J. Polym. Sci., Part B: Polym. Phys. 1987, 25, 1511.
31. 2 on crystallization kinetics of polypropylene. Polym. Eng. Sci. 2001, 41, 1938.
32. 2 on crystallization kinetics of poly(ethylene terephthalate). Polym. Eng. Sci. 2003, 43, 479.
33. 2. Polym. Eng. Sci. 2004, 44, 186.
34. Naguib, H. E.; Park, C. B.; Reichelt, N. Fundamental foaming mechanisms governing the volume expansion of extruded polypropylene foams. J. Appl. Polym. Sci. 2004, 91, 2661.
35. Naguib, H. E.; Park, C. B.; Lee, P. C. Effect of Talc Content on the Volume Expansion Ratio of Extruded PP Foams. J. Cell. Plast. 2003, 39, 499.
36. Janeschitz-Kriegl, H.; Wippel, H.; Paulik, C.; Eder, G. Polymer Crystallization Dynamics as Reflected by Differential Scanning Calorimetry I. On the Calibration of the Apparatus. Colloi Polym. Sci. 1993, 271, 1107.
37. Lim, G. B. A.; Lloyd, D. Isothermal crystallization of isotactic polypropylene in dotriacontane. I: Effect of nucleating agent addition on overall crystallization kinetics. Polym. Eng. Sci. 1993, 33, 513.
38. Varga, J.; Menczel, J.; Solti, A. Double Crystallization of Biaxially Oriented Polypropylene. J. Therm. Anal. 1981, 20, 23.
39. Ghijsels, A.; Groesbeek, N.; Yip, C. W. Multiple crystallization behaviour of polypropylene/thermoplastic rubber blends and its use in assessing blend morphology. Polymer 1982, 23, 1913.
40. Dieckmann, D.; Holtz, B. Aging Modifiers for Extruded LDPE Foam. Foams 99 1989, 211.
41. Krevelen, V. Properties of Polymers; Elsevier: New York, 1980.
42. Sato, Y.; Yarugi, M.; Fujiwara, K.; Takishima, S.; Masuoka, H. Solubilities of carbon dioxide and nitrogen in polystyrene under high temperature and pressure. Fluid Phase Equilib. 1996, 125, 129.
43. 2 Solutions Using a Foam Extrusion System and a Gear Pump. University of Toronto, 1999.