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A simple extension apparatus for dilute gelatin gels

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Summary

An apparatus has been designed and constructed which allows the rupture properties of dilute gelatin gels to be studied. Breaking stresses in the range 1.7×104 to 1×106 dyne cm−2 have been determined; extension at break varied between 46 and 155%.

The initial slope of the load-extension graph is linear and can be used to calculateYoung's modulus and can be related to Bloom jelly strength.

Zusammenfassung

Es ist ein Apparat konstruiert und gebaut worden, welcher die Untersuchung der Brucheigenschaften von verdünnten Gelatine-Gelen gestattet. Die Bruchspannungen im Bereich von 1,7×104 bis 1×106 Dyn cm−2 sind bestimmt worden. Die Dehnung am Bruchpunkt variierte zwischen 46 und 155%.

Das Anfangsstück (ansteigend) der Belastungs/Dehnungskurve ist linear und kann zur Berechnung desYoungschen Moduls verwendet und mit der Gallertfestigkeit nachBloom in Beziehung gesetzt werden.

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References

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Author notes

  1. W. G. Cobbett

    Present address: The British Paper & Board Industry Research Association, Kenley, Surrey

  2. A. G. Ward

    Present address: Procter Dept. of Food and Leather Science, The University, Leeds 2, England

Authors and Affiliations

    Authors
    1. W. G. Cobbett
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    2. A. G. Ward
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    Cobbett, W.G., Ward, A.G. A simple extension apparatus for dilute gelatin gels. Rheol Acta 7, 217–222 (1968). https://doi.org/10.1007/BF01985780

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    • DOI: https://doi.org/10.1007/BF01985780

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