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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Detalles Bibliográficos
Autores principales: Tognana, S., Salgueiro, W., Somoza, A., Marzocca, A.J.
Formato: JOUR
Materias:
Epoxy
Free volume
Polymer composites
Positron annihilation
Aluminum particle
Curing process
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
Positron annihilation spectroscopy
Positrons
Scanning electron microscopy
Matrix algebra
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1788618X_v7_n2_p120_Tognana
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_1788618X_v7_n2_p120_Tognana2023-10-03T16:32:51Z Influence of the filler content on the free nanohole volume in epoxy-based composites Tognana, S. Salgueiro, W. Somoza, A. Marzocca, A.J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Tognana, S.
Salgueiro, W.
Somoza, A.
Marzocca, A.J.
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.
format JOUR
author Tognana, S.
Salgueiro, W.
Somoza, A.
Marzocca, A.J.
author_facet Tognana, S.
Salgueiro, W.
Somoza, A.
Marzocca, A.J.
author_sort Tognana, S.
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
url http://hdl.handle.net/20.500.12110/paper_1788618X_v7_n2_p120_Tognana
work_keys_str_mv AT tognanas influenceofthefillercontentonthefreenanoholevolumeinepoxybasedcomposites
AT salgueirow influenceofthefillercontentonthefreenanoholevolumeinepoxybasedcomposites
AT somozaa influenceofthefillercontentonthefreenanoholevolumeinepoxybasedcomposites
AT marzoccaaj influenceofthefillercontentonthefreenanoholevolumeinepoxybasedcomposites
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