Magnetic resonance imaging of polymer melt flows


Uludag Y., McCarthy M., Powell R., Barall G.

58th Annual Technical Conference of the Society-of-Plastics-Engineers, Florida, United States Of America, 7 - 11 May 2000, pp.1061-1064 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Florida
  • Country: United States Of America
  • Page Numbers: pp.1061-1064

Abstract

A tubular rheometry that is based on obtaining velocity profiles by nuclear magnetic resonance imaging (NMRI) and measuring pressure drop of the flow is used for the polymer melts. This technique allows one to get viscosity data potentially over many decades of shear rate region in a single measurement. In this study, we examined polyethylene melt as the flow medium. Despite the low shear rates attained, our results reveal that this non-invasive and non-destructive method is promising for constructing an on-line polymer melt rheometer.