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RELATION BETWEEN GLASS TRANSITION AND STABILITY OF A FROZEN PRODUCT.

Author(s) : SIMATOS D., BLOND G., LE MESTE M.

Type of article: Article

Summary

THE AUTHORS STRESS THE POINT THAT, IN FROZEN PRODUCTS THE FACTS ARE FAR FROM BEING SIMPLE ; SOME EXAMPLES OF DEGRADATION ARE GIVEN. IT APPEARS THAT THE KINETICS OF DEGRADATION PROCESSES TAKING PLACE DURING THE STORAGE, ACCORDING TO WLF (WILLIAMS-LANDEL-FERRY) KINETICS, CANNOT BE EXPLAINED ONLY BY THE DECREASE IN VISCOSITY OF THEIR UNFROZEN FRACTION. EXPERIMENTAL INVESTIGATIONS AND MATHEMATICAL MODELING ARE STILL NEEDED TO KNOW THE RESPECTIVE PARTS OF THE VISCOSITY DECREASE OF THEAMORPHOUS PHASE DUE TO THE INCREASE IN TEMPERATURE (WLF BEHAVIOUR) AND TO THE MELTING OF ICE, AND THEN TO DETERMINE THE TRUE INFLUENCE OF THIS VISCOSITY DECREASE ON THE OBSERVED EVOLUTIONS DURING THE STORAGE. G. B.

Details

  • Original title: RELATION BETWEEN GLASS TRANSITION AND STABILITY OF A FROZEN PRODUCT.
  • Record ID : 1990-1455
  • Languages: English
  • Source: Cryo-Letters - vol. 10 - n. 2
  • Publication date: 1989/03
  • Document available for consultation in the library of the IIR headquarters only.

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