Rheological studies of polymers under high pressure carbon dioxide

Maxwell J. Wingert*, Jiong Shen, Peter M. Davis, L. James Lee, David L. Tomasko, Kurt W. Koelling

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

The viscosities of carbon dioxide-impregnated polymers in the literature are currently limited to high shear rates using capillary or extrusion rheometers. This paper uses a rotational rheometer to report data on the zero-shear viscosity of carbon dioxide-saturated polymers. The viscosity drop of a polybutene oil is one and half orders of magnitude at 35°C and 6 MPa, while the zero-shear viscosity of poly(dimethylsiloxane) (PDMS) drops half of an order of magnitude at 30°C and 3 MPa. Efforts are ongoing to measure the CO 2-plasticized viscosity of polystyrene melt.

Original languageEnglish
Pages291-295
Number of pages5
StatePublished - 2005
EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States
Duration: 1 May 20055 May 2005

Conference

ConferenceSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
Country/TerritoryUnited States
CityBoston, MA
Period1/05/055/05/05

Keywords

  • Carbon dioxide
  • Plasticization
  • Polymers
  • Swelling
  • Zero-shear viscosity

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