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, Amerika Birleşik Devletleri, 7 - 11 Mayıs 2000, ss.1061-1064 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Florida
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.1061-1064
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

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.