Home Physical Sciences Relation between Rheological Properties and Foam Processability for Polypropylene
Article Publicly Available

Relation between Rheological Properties and Foam Processability for Polypropylene

Published/Copyright: March 1, 2011
Download Article (PDF)
Become an author with De Gruyter Brill
Author Information
Chemistry International -- Newsmagazine for IUPAC
From the journal Chemistry International -- Newsmagazine for IUPAC Volume 33 Issue 2

_

Relation between Rheological Properties and Foam Processability for Polypropylene

Polypropylene (PP) foam is in great demand in industry for a variety of applications (e.g., automobile parts, food trays and packaging, insulators, and shock absorbers) because of its heat resistance, stiffness, and recyclability. However, it is difficult to obtain low-density foams with fine cell structure, especially from uncross-linked PP, because of the lack of melt elasticity. In this project, a newly developed processing modifier, acrylic-modified polytetrafluoroethylene (PTFE), will be employed to enhance the strain-hardening in elongational viscosity of PP. PTFE deforms into a fibrous structure during mixing in a molten PP, and the interdigitated network structure of the PTFE fibers is responsible for the marked strain-hardening. As a result, PP containing a small amount (0.5–5 wt%) of the modifier exhibits prominent melt tension with a small increase in shear viscosity. Further, foaming processability will be evaluated by various processing operations as follows: chemical blowing agent microfoaming by supercritical CO2, batch foaming, and continuous extrusion foaming.

For more information, contact Task Group Chair Masayuki Yamaguchi <m_yama@jaist.ac.jp>.

www.iupac.org/web/ins/2010-029-3-400

_

Page last modified 14 March 2011.

Copyright © 2003-2011 International Union of Pure and Applied Chemistry.

Questions regarding the website, please contact edit.ci@iupac.org

Published Online: 2011-03-01
Published in Print: 2011-03

© 2014 by Walter de Gruyter GmbH & Co.

Articles in the same Issue

  1. Masthead
  2. From the Editor
  3. Contents
  4. Mounting a Positive Offensive
  5. The First IUPAC Congress and General Assembly in a Latin American Country
  6. Where Would We Be without Chemistry?
  7. No Longer Constants of Nature
  8. Women Sharing a Chemical Moment in Time. The Year Begins!
  9. On Your Marks, Get Wet, Ready, Go!
  10. African Journal of Chemical Education
  11. Crop Protection Chemistry Award – Call for Nominations
  12. Tribute to Pavel Kratochvil
  13. In Memoriam: Joachim Meissner
  14. Physisorption of Gases, with Special Reference to the Evaluation of Surface Area and Pore Size Distribution
  15. Relation between Rheological Properties and Foam Processability for Polypropylene
  16. Quantitative Review and Analysis of Pesticide Sorption and Its Effect on Degradation in Relation to Soil and Climate
  17. Rare Earth Metal (Sc, Y, Lanthanoids) Bromides and Iodides in Water and Aqueous Systems (Solubility Data Series)
  18. Definition of the Hydrogen Bond
  19. Definitions of Terms Relating to Crystalline Polymers
  20. Terminology for Biorelated Polymers and Applications
  21. Pure and Applied Chemistry Recognizes the “Hand of Youth” in Shaping Chemistry
  22. Heat Capacities: Liquids, Solutions and Vapours
  23. Applied Thermodynamics of Fluids
  24. Chemical Laboratory Safety and Security: A Guide to Prudent Chemical Management
  25. Chemistry Education
  26. Photochemistry
  27. Polymer Synthesis
  28. Chemical Thermodynamics
  29. Polymer-Solvent Complexes and Intercalates
  30. Applied Thermodynamics
  31. Colloquium Spectroscopicum Internationale XXXVII
  32. Chemistry for Life Sciences
  33. Boron
  34. Analytical Chemistry
  35. Drug Discovery and Development
  36. General and Applied Chemistry
  37. Functional π-Electron Systems
  38. Green Chemistry
  39. Mark Your Calendar
https://doi.org/10.1515/ci.2011.33.2.22b

Articles in the same Issue

  1. Masthead
  2. From the Editor
  3. Contents
  4. Mounting a Positive Offensive
  5. The First IUPAC Congress and General Assembly in a Latin American Country
  6. Where Would We Be without Chemistry?
  7. No Longer Constants of Nature
  8. Women Sharing a Chemical Moment in Time. The Year Begins!
  9. On Your Marks, Get Wet, Ready, Go!
  10. African Journal of Chemical Education
  11. Crop Protection Chemistry Award – Call for Nominations
  12. Tribute to Pavel Kratochvil
  13. In Memoriam: Joachim Meissner
  14. Physisorption of Gases, with Special Reference to the Evaluation of Surface Area and Pore Size Distribution
  15. Relation between Rheological Properties and Foam Processability for Polypropylene
  16. Quantitative Review and Analysis of Pesticide Sorption and Its Effect on Degradation in Relation to Soil and Climate
  17. Rare Earth Metal (Sc, Y, Lanthanoids) Bromides and Iodides in Water and Aqueous Systems (Solubility Data Series)
  18. Definition of the Hydrogen Bond
  19. Definitions of Terms Relating to Crystalline Polymers
  20. Terminology for Biorelated Polymers and Applications
  21. Pure and Applied Chemistry Recognizes the “Hand of Youth” in Shaping Chemistry
  22. Heat Capacities: Liquids, Solutions and Vapours
  23. Applied Thermodynamics of Fluids
  24. Chemical Laboratory Safety and Security: A Guide to Prudent Chemical Management
  25. Chemistry Education
  26. Photochemistry
  27. Polymer Synthesis
  28. Chemical Thermodynamics
  29. Polymer-Solvent Complexes and Intercalates
  30. Applied Thermodynamics
  31. Colloquium Spectroscopicum Internationale XXXVII
  32. Chemistry for Life Sciences
  33. Boron
  34. Analytical Chemistry
  35. Drug Discovery and Development
  36. General and Applied Chemistry
  37. Functional π-Electron Systems
  38. Green Chemistry
  39. Mark Your Calendar
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2026 De Gruyter Brill
Downloaded on 9.2.2026 from https://www.degruyterbrill.com/document/doi/10.1515/ci.2011.33.2.22b/html
Scroll to top button