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Efficiency scale for polymer nucleating agents

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Abstract

Nucleation of crystallizable polymers is quantified through an efficiency scale obtained and calculated using differential scanning calorimetry (DSC). This scale, defined in self-nucleation experiments, is a simple, convenient and reliable calorimetric efficiency scale. Typical nucleating agents for isotactic polypropylene are evaluated; they rate at best at 60 to=70% on this efficiency scale.

Zusammenfassung

Anhand einer unter Einsatz von DSC erhaltenen und berechneten Effizienzskale wurde eine Quantifizierung der Keimbildung bei kristallisierbaren Polymeren vorgenommen. Diese in selbstkeimbildenden Experimenten definierte Skale ist eine einfache, praktische und sinnvolle kalorimetrische Effizienzskale. Für isotaktisches Polypropylen wurden typische Keimbildungsagenzien entwickelt, deren Bestgeschwindigkeit auf dieser Effizienzskale bei 60 bis 70% liegt.

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Authors and Affiliations

  1. I. C. S., 6, rue Boussingault, 67083, Strasbourg, France

    A. Thierry, B. Lotz & J. C. Wittmann

  2. Pechiney-CRV, rue A. Bergès, BP 27, 38340, Voreppe, France

    B. Fillon

Authors
  1. B. Fillon
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  2. A. Thierry
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  3. B. Lotz
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  4. J. C. Wittmann
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Fillon, B., Thierry, A., Lotz, B. et al. Efficiency scale for polymer nucleating agents. Journal of Thermal Analysis 42, 721–731 (1994). https://doi.org/10.1007/BF02546745

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  • DOI: https://doi.org/10.1007/BF02546745

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