Micro-viscosity of liquid oil confined in colloidal fat crystal networks.

نویسندگان

  • H Du
  • C Kim
  • M G Corradini
  • R D Ludescher
  • M A Rogers
چکیده

Molecular rotors may be utilized as non-invasive, non-disruptive and highly sensitive alternatives to conventional measures of bulk viscosity when the oil is entrained in a colloidal fat crystal network. Oil viscosity changes based on the molecular confinement of the oil, which is dependent on its molecular volume. Changes in micro-viscosity were not dependent on the solids content, but instead were strongly dependent on the box-counting fractal dimension in high-space filling colloidal fat crystal networks (i.e., D > 1.89). A bulk oil viscosity is often an overestimation of the actual viscosity of the entrained oil and may not be appropriate when predicting diffusion in multi-phase materials.

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عنوان ژورنال:
  • Soft matter

دوره 10 43  شماره 

صفحات  -

تاریخ انتشار 2014