After extensive studies starting in the 1970s in relation to miscibility and piezoelectric properties, the blends of poly(vinylidene fluoride) (PVDF) and poly(methyl methacrylate) (PMMA) have been revisited with the aim of assessing their mechanical behavior. Depending on the amount of PVDF, either amorphous or semicrystalline blends are produced. Typically, the blends remain amorphous when their PVDF content does not exceed 40 wt. %. Blend composition influence on the values of the glass transition temperature, Tg, and on its mechanical expression, Tα, is extensively discussed. Then, emphasis is put on the stress-strain behavior in tension and compression over the low deformation range covering the elastic, anelastic, and viscoplastic response. The reported data depend, as expected, on temperature and strain rate and also, markedly, on blend composition and degree of crystallinity. Molecular arguments, based on the contribution of the glass transition motions are proposed to account for the observed behavior. Thanks to the understanding of phenomena at the molecular level, accurate models can be selected in the view of mechanical modeling.
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e-mail: jean-louis.halary@espci.fr
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January 2012
Bridging Microstructure, Properties, And Processing Of Polymer-Based Advanced Materials
Amorphous and Semicrystalline Blends of Poly(vinylidene fluoride) and Poly(methyl methacrylate): Characterization and Modeling of the Mechanical Behavior
J. L. Halary,
e-mail: jean-louis.halary@espci.fr
J. L. Halary
Laboratoire de Sciences et Ingénierie de la Matière
Molle (UMR 7615), Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris (ESPCI ParisTech), 10 rue Vauquelin, 75231 Paris cedex 05, France
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J. Jarray,
J. Jarray
Institut Préparatoire aux Etudes Scientifiques et Techniques (IPEST)
, BP51, 2070 La Marsa, Tunisia
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M. Fatnassi,
M. Fatnassi
Institut Préparatoire aux Etudes Scientifiques et Techniques (IPEST)
, BP51, 2070 La Marsa, Tunisia
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F. Ben Cheikh Larbi
F. Ben Cheikh Larbi
Institut Préparatoire aux Etudes Scientifiques et Techniques (IPEST)
, BP51, 2070 La Marsa, Tunisia
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J. L. Halary
Laboratoire de Sciences et Ingénierie de la Matière
Molle (UMR 7615), Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris (ESPCI ParisTech), 10 rue Vauquelin, 75231 Paris cedex 05, France
e-mail: jean-louis.halary@espci.fr
J. Jarray
Institut Préparatoire aux Etudes Scientifiques et Techniques (IPEST)
, BP51, 2070 La Marsa, Tunisia
M. Fatnassi
Institut Préparatoire aux Etudes Scientifiques et Techniques (IPEST)
, BP51, 2070 La Marsa, Tunisia
F. Ben Cheikh Larbi
Institut Préparatoire aux Etudes Scientifiques et Techniques (IPEST)
, BP51, 2070 La Marsa, Tunisia
J. Eng. Mater. Technol. Jan 2012, 134(1): 010910 (8 pages)
Published Online: December 21, 2011
Article history
Received:
April 13, 2011
Revised:
July 29, 2011
Online:
December 21, 2011
Published:
December 21, 2011
Citation
Halary, J. L., Jarray, J., Fatnassi, M., and Ben Cheikh Larbi, F. (December 21, 2011). "Amorphous and Semicrystalline Blends of Poly(vinylidene fluoride) and Poly(methyl methacrylate): Characterization and Modeling of the Mechanical Behavior." ASME. J. Eng. Mater. Technol. January 2012; 134(1): 010910. https://doi.org/10.1115/1.4005411
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