Microdevices for extensional rheometry of low viscosity elastic liquids: a review

作者：Galindo Rosales F J^*; Alves M A; Oliveira M S N

来源：Microfluidics and Nanofluidics, 2013, 14(1-2): 1-19.

DOI：10.1007/s10404-012-1028-1

• Extensional flow
• Filament stretching
• Filament thinning
• Diluted polymer solution
• Rheometry
• Microfluidics
• Extensional viscosity
• Viscoelasticity

Extensional flows and the underlying stability/instability mechanisms are of extreme relevance to the efficient operation of inkjet printing, coating processes and drug delivery systems, as well as for the generation of micro droplets. The development of an extensional rheometer to characterize the extensional properties of low viscosity fluids has therefore stimulated great interest of researchers, particularly in the last decade. Microfluidics has proven to be an extraordinary working platform and different configurations of potential extensional microrheometers have been proposed. In this review, we present an overview of several successful designs, together with a critical assessment of their capabilities and limitations.

• 出版日期2013-1