Shear Modulus of a Depletion-Induced Colloidal Gel

ORAL

Abstract

Mechanical properties of a colloidal gel are of great interest because they are related to the processability of the colloidal dispersion and its stability. We measure the shear modulus for colloidal gel networks induced by depletion attraction and determine the relationship between the strength of the depletion attraction and the magnitude of the shear modulus.

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Authors

  • Chanjoong Kim

    Department of Physics and HEAS, Harvard University, SEAS, Harvard University, HSEAS, Harvard University

  • David Weitz

    School of Engineering and Applied Sciences, Harvard University, Harvard University, Department of Physics and HEAS, Harvard University, SEAS, Harvard University, Harvard School of Engineering and Applied Sciences, and Department of Physics, Harvard University, HSEAS, Harvard University