Determination of elasticity of gels by successive compression–decompression cycles

  • G. Kaletunc*
  • , M. D. Normand
  • , A. Nussinovitch
  • , M. Peleg
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Cylindrical specimens of agar, alginate and kappa carrageenan gels (1 and 2.5%) were subjected to five successive compression-decompression cycles to pre-determined strains. The total and irrecoverable work in these cycles, and their dependence on the strain level and concentration, were characteristic of the gel type. The portion of the irrecoverable work, which served as a measure of deviation from ideal elasticity, could not be correlated with the strength of the gels or their deformability (failure strain) or stiffness, indicating that the ‘degree of elasticity’ is an independent property of these gels.

Original languageEnglish
Pages (from-to)237-247
Number of pages11
JournalTopics in Catalysis
Volume5
Issue number3
DOIs
StatePublished - 1991
Externally publishedYes

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