Influence of the filler content on the free nanohole volume in epoxy-based composites
A study on free nanohole volumes in particulate epoxy matrix composites as a function of the aluminum particles content is presented. Specifically, the influence of the filler content in the epoxy matrix on the nanohole volume is analyzed in terms of the mechanical and morphological properties of th...
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1788618X_v7_n2_p120_Tognana http://hdl.handle.net/20.500.12110/paper_1788618X_v7_n2_p120_Tognana |
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paper:paper_1788618X_v7_n2_p120_Tognana2023-06-08T16:29:05Z Influence of the filler content on the free nanohole volume in epoxy-based composites Marzocca, Angel José Epoxy Free volume Polymer composites Positron annihilation Aluminum particle Curing process Epoxy Epoxy matrices Epoxy-based Epoxy-matrix composite Filler contents Input parameter Micromechanical model Morphological properties Nanoholes Polymer composite Positron annihilation lifetime spectroscopy Positron lifetime Scanning calorimetry Specific information Aluminum powder metallurgy Atomic force microscopy Composite micromechanics Fillers Free volume Positron annihilation Positron annihilation spectroscopy Positrons Scanning electron microscopy Matrix algebra A study on free nanohole volumes in particulate epoxy matrix composites as a function of the aluminum particles content is presented. Specifically, the influence of the filler content in the epoxy matrix on the nanohole volume is analyzed in terms of the mechanical and morphological properties of the composites fabricated. Nanoholes data were measured using positron annihilation lifetime spectroscopy recently published by the authors. Applying the Park-Earmme micromechanical model, these data are interpreted in terms of the thermal stresses generated during the curing process applied during fabrication. Some input parameters of the model were experimentally obtained. In order to obtain a satisfactory description of the evolution of the free nanohole volume in the whole range of filler contents, a contribution due to the matrix-particle interphases is taken into account in the micromechanical model. To this aim, specific information on the interphases was obtained using atomic force microscopy (AFM), scanning electron microscopy (SEM), differencital scanning calorimetry (DSC) and a free-constraint analysis of the positron lifetime data. © BME-PT. Fil:Marzocca, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1788618X_v7_n2_p120_Tognana http://hdl.handle.net/20.500.12110/paper_1788618X_v7_n2_p120_Tognana |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Epoxy Free volume Polymer composites Positron annihilation Aluminum particle Curing process Epoxy Epoxy matrices Epoxy-based Epoxy-matrix composite Filler contents Input parameter Micromechanical model Morphological properties Nanoholes Polymer composite Positron annihilation lifetime spectroscopy Positron lifetime Scanning calorimetry Specific information Aluminum powder metallurgy Atomic force microscopy Composite micromechanics Fillers Free volume Positron annihilation Positron annihilation spectroscopy Positrons Scanning electron microscopy Matrix algebra |
| spellingShingle |
Epoxy Free volume Polymer composites Positron annihilation Aluminum particle Curing process Epoxy Epoxy matrices Epoxy-based Epoxy-matrix composite Filler contents Input parameter Micromechanical model Morphological properties Nanoholes Polymer composite Positron annihilation lifetime spectroscopy Positron lifetime Scanning calorimetry Specific information Aluminum powder metallurgy Atomic force microscopy Composite micromechanics Fillers Free volume Positron annihilation Positron annihilation spectroscopy Positrons Scanning electron microscopy Matrix algebra Marzocca, Angel José Influence of the filler content on the free nanohole volume in epoxy-based composites |
| topic_facet |
Epoxy Free volume Polymer composites Positron annihilation Aluminum particle Curing process Epoxy Epoxy matrices Epoxy-based Epoxy-matrix composite Filler contents Input parameter Micromechanical model Morphological properties Nanoholes Polymer composite Positron annihilation lifetime spectroscopy Positron lifetime Scanning calorimetry Specific information Aluminum powder metallurgy Atomic force microscopy Composite micromechanics Fillers Free volume Positron annihilation Positron annihilation spectroscopy Positrons Scanning electron microscopy Matrix algebra |
| description |
A study on free nanohole volumes in particulate epoxy matrix composites as a function of the aluminum particles content is presented. Specifically, the influence of the filler content in the epoxy matrix on the nanohole volume is analyzed in terms of the mechanical and morphological properties of the composites fabricated. Nanoholes data were measured using positron annihilation lifetime spectroscopy recently published by the authors. Applying the Park-Earmme micromechanical model, these data are interpreted in terms of the thermal stresses generated during the curing process applied during fabrication. Some input parameters of the model were experimentally obtained. In order to obtain a satisfactory description of the evolution of the free nanohole volume in the whole range of filler contents, a contribution due to the matrix-particle interphases is taken into account in the micromechanical model. To this aim, specific information on the interphases was obtained using atomic force microscopy (AFM), scanning electron microscopy (SEM), differencital scanning calorimetry (DSC) and a free-constraint analysis of the positron lifetime data. © BME-PT. |
| author |
Marzocca, Angel José |
| author_facet |
Marzocca, Angel José |
| author_sort |
Marzocca, Angel José |
| title |
Influence of the filler content on the free nanohole volume in epoxy-based composites |
| title_short |
Influence of the filler content on the free nanohole volume in epoxy-based composites |
| title_full |
Influence of the filler content on the free nanohole volume in epoxy-based composites |
| title_fullStr |
Influence of the filler content on the free nanohole volume in epoxy-based composites |
| title_full_unstemmed |
Influence of the filler content on the free nanohole volume in epoxy-based composites |
| title_sort |
influence of the filler content on the free nanohole volume in epoxy-based composites |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1788618X_v7_n2_p120_Tognana http://hdl.handle.net/20.500.12110/paper_1788618X_v7_n2_p120_Tognana |
| work_keys_str_mv |
AT marzoccaangeljose influenceofthefillercontentonthefreenanoholevolumeinepoxybasedcomposites |
| _version_ |
1768543917858357248 |