Mechanical Behavior of Thermoplastic Starch: ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
Mechanical Behavior of Thermoplastic Starch: Rationale for the Temperature-Relative Humidity Equivalence
Auteur(s) :
Leroy, Lise [Auteur]
Stoclet, Gregory [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Lefebvre, Jean-Marc [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Gaucher, Valerie [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Stoclet, Gregory [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Lefebvre, Jean-Marc [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Gaucher, Valerie [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Titre de la revue :
Polymers
Nom court de la revue :
Polymers
Numéro :
14
Pagination :
2531
Éditeur :
MDPI AG
Date de publication :
2022-06-21
ISSN :
2073-4360
Résumé en anglais : [en]
This paper aimed at understanding and rationalizing the influence of both temperature and relative humidity on the mechanical behavior of thermoplastic starch (TPS). DMA experiments revealed that water molecules impact the ...
Lire la suite >This paper aimed at understanding and rationalizing the influence of both temperature and relative humidity on the mechanical behavior of thermoplastic starch (TPS). DMA experiments revealed that water molecules impact the crosslinking network by reducing the intermolecular hydrogen bond density, resulting in a less dense entanglement network. In addition, the in-situ X-ray characterization during hydration of starch revealed structural changes, which were ascribed to conformational changes in the starch chain, due to their interaction with the uptake water molecules. Finally, the study of TPS uniaxially stretched at different temperatures and humidity showed that the mechanical behavior of TPS could be rationalized by considering the ΔT parameter, which corresponds to the temperature difference between the drawing temperature and the glass transition temperature of TPS.Lire moins >
Lire la suite >This paper aimed at understanding and rationalizing the influence of both temperature and relative humidity on the mechanical behavior of thermoplastic starch (TPS). DMA experiments revealed that water molecules impact the crosslinking network by reducing the intermolecular hydrogen bond density, resulting in a less dense entanglement network. In addition, the in-situ X-ray characterization during hydration of starch revealed structural changes, which were ascribed to conformational changes in the starch chain, due to their interaction with the uptake water molecules. Finally, the study of TPS uniaxially stretched at different temperatures and humidity showed that the mechanical behavior of TPS could be rationalized by considering the ΔT parameter, which corresponds to the temperature difference between the drawing temperature and the glass transition temperature of TPS.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
INRAE
ENSCL
CNRS
INRAE
ENSCL
Collections :
Équipe(s) de recherche :
Ingénierie des Systèmes Polymères
Date de dépôt :
2023-12-11T14:20:38Z
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- polymers-14-02531-v2.pdf
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