Influence of viscoelasticity and permeability on the stress response of silica gel

George W. Scherer

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

This review examines the chemical and physical factors that control the response of silica gel to stimuli such as aging, heating, mechanical deformation, and drying. When the liquid phase is chemically aggressive, the gel exhibits spontaneous shrinkage (syneresis) and viscoelasticity; in an inert medium, the network of the gel is purely elastic. The rate of the responses to mechanical loads and changes in temperature depends on the permeability, as well as the modulus, of the network. The properties of the gel change by orders of magnitude as the network contracts during drying, and this has a dramatic effect on the drying stresses.

Original languageEnglish (US)
Pages (from-to)1109-1116
Number of pages8
JournalLangmuir
Volume12
Issue number5
DOIs
StatePublished - Mar 6 1996

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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