Study of the kinetics, mass transfer, and particle morphology in the production of high-impact polypropylene

作者: P. Kittilsen , T. F. McKenna

DOI: 10.1002/APP.1939

关键词: PolypropyleneEthylene propylene rubberChemistryMass transferChemical engineeringPolymer scienceCopolymerParticleNatural rubberReaction rateChemical kinetics

摘要: A sequence of experimental steps was perfected to produce high-impact modified polypropylene (PP), and study the influence particle morphology rubber content on reaction kinetics, especially in terms mass transfer limitations. It found that after a critical copolymer at approximately 40% (with respect total weight), it impossible obtain high rates. This is thought be result fundamental change attributed presence soft EPR phase micropores. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 1047–1060,

参考文章(8)
S. Floyd, K. Y. Choi, T. W. Taylor, W. H. Ray, Polymerization of olefines through heterogeneous catalysis IV. Modeling of heat and mass transfer resistance in the polymer particle boundary layer Journal of Applied Polymer Science. ,vol. 31, pp. 2231- 2265 ,(1986) , 10.1002/APP.1986.070310724
Masahiro Kakugo, Hajime Sadatoshi, Jiro Sakai, Masakazu Yokoyama, Growth of polypropylene particles in heterogeneous Ziegler-Natta polymerization Macromolecules. ,vol. 22, pp. 3172- 3177 ,(1989) , 10.1021/MA00197A046
Jon A. Debling, W. Harmon Ray, Heat and Mass Transfer Effects in Multistage Polymerization Processes: Impact Polypropylene Industrial & Engineering Chemistry Research. ,vol. 34, pp. 3466- 3480 ,(1995) , 10.1021/IE00037A035
Mike H. Unsworth, John L. Monteith, Properties of Gases and Liquids ,(1989)