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Time-dependent strength of colloidal gels

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In Faculty Publications

Title

Time-dependent strength of colloidal gels

Author(s)

Manley, S.
Davidovitch, Benny
Davies, Neil R.
Cipelletti, L.
Bailey, A. E.
Christianson, Rebecca J.
Gasser, U.
Prasad, V.
Segre, P. N.
Doherty, M. P.
Sankaran, S.
Jankovsky, A. L.
Shiley, B.
Zin Technologies, Inc.
Bowen, J.
Zin Technologies, Inc.
Eggers, J.
Zin Technologies, Inc.
Kurta, C.
Zin Technologies, Inc.
Lorik, T.
Zin Technologies, Inc.

Description

Colloidal silica gels are shown to stiffen with time, as demonstrated by both dynamic light scattering and bulk rheological measurements. Their elastic moduli increase as a power law with time, independent of particle volume fraction; however, static light scattering indicates that there are no large-scale structural changes. We propose that increases in local elasticity arising from bonding between neighboring colloidal particles can account for the strengthening of the network, while preserving network structure.

Date Published

2018-03-26

Files

  • Download Christianson_TimeDependent.pdf

Rights Statements

In Copyright - Educational Use Permitted

Linked Data for this Object

Wikidata subjects
Colloidal Gels with Extracellular Matrix Particles and Growth Factors for Bone Regeneration in Critical Size Rat Calvarial Defects.

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