Improvement of mechanical performance of epoxy resins filled with cobalt and chromium powders
Identifieur interne : 000051 ( Maroc/Analysis ); précédent : 000050; suivant : 000052Improvement of mechanical performance of epoxy resins filled with cobalt and chromium powders
Auteurs : M. El Homrany [Maroc] ; A. Maaroufi [Maroc] ; R. Benavente [Espagne] ; J. M. Pere A [Espagne] ; G. Pinto [Espagne] ; M. Halim [Maroc]Source :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2010-12-15.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Chrome, Cobalt, Matériau composite.
English descriptors
- KwdEn :
- Chromium, Cobalt, Composite material, Concentration effect, Conducting material, Dispersion reinforced material, Dynamic mechanical properties, Epoxy resin, Experimental study, Mechanical loss, Metal particle, Morphology, Rheological properties, Viscoelasticity, aging, composites, fillers, resins, viscoelastic properties.
Abstract
Epoxy/ powder metal composites have interesting electrical properties, becoming conductors above the percolation threshold. To complete this study, mechanical investigations have been carried out to show the influence of the fillers on the mechanical performance of these composites. In this framework, different epoxy/metallic powders (Cobalt, Chromium) composites were prepared. Scanning Electron Microscopy showed that the dispersion of the metallic fillers in the matrix is almost homogeneous. The dynamic mechanical thermal analysis (DMTA) measurements showed the dependence of the viscoelastic parameters with the frequency, temperature, nature, and content of fillers. The main relaxations observed are the primary α relaxation (associated to the glass transition, Tg) and a secondary β relaxation. A second DMTA run on the same samples showed a slight increase of the Tg. It clearly showed that the used metallic fillers improve the mechanical properties of the obtained composites. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Url:
DOI: 10.1002/app.32554
Affiliations:
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ISTEX:BA4ACA74459BDCE4D4AC513B31E76337234B516DLe document en format XML
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El Homrany</name><affiliation wicri:level="1"><country xml:lang="fr">Maroc</country><wicri:regionArea>Department of Chemistry, Faculty of Sciences, Laboratory of Composites Materials, Polymers and Environment, P.B. 1014, Rabat Agdal</wicri:regionArea><wicri:noRegion>Rabat Agdal</wicri:noRegion></affiliation></author><author><name sortKey="Maaroufi, A" sort="Maaroufi, A" uniqKey="Maaroufi A" first="A." last="Maaroufi">A. 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Benavente</name><affiliation wicri:level="2"><country xml:lang="fr">Espagne</country><wicri:regionArea>Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva, 3, Madrid 28006</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author><author><name sortKey="Pere A, J M" sort="Pere A, J M" uniqKey="Pere A J" first="J. M." last="Pere A">J. M. Pere A</name><affiliation wicri:level="2"><country xml:lang="fr">Espagne</country><wicri:regionArea>Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva, 3, Madrid 28006</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author><author><name sortKey="Pinto, G" sort="Pinto, G" uniqKey="Pinto G" first="G." last="Pinto">G. Pinto</name><affiliation wicri:level="2"><country xml:lang="fr">Espagne</country><wicri:regionArea>Departamento de Ingeniería Química Industrial y del Medio Ambiente, E.T.S.I. Industriales, Universidad Politécnica de Madrid, Madrid 28006</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author><author><name sortKey="Halim, M" sort="Halim, M" uniqKey="Halim M" first="M." last="Halim">M. Halim</name><affiliation wicri:level="1"><country xml:lang="fr">Maroc</country><wicri:regionArea>Department of Chemistry, Faculty of Sciences, Laboratory of Composites Materials, Polymers and Environment, P.B. 1014, Rabat Agdal</wicri:regionArea><wicri:noRegion>Rabat Agdal</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Applied Polymer Science</title><title level="j" type="abbrev">J. Appl. Polym. Sci.</title><idno type="ISSN">0021-8995</idno><idno type="eISSN">1097-4628</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2010-12-15">2010-12-15</date><biblScope unit="volume">118</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="3701">3701</biblScope><biblScope unit="page" to="3706">3706</biblScope></imprint><idno type="ISSN">0021-8995</idno></series><idno type="istex">BA4ACA74459BDCE4D4AC513B31E76337234B516D</idno><idno type="DOI">10.1002/app.32554</idno><idno type="ArticleID">APP32554</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0021-8995</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chromium</term><term>Cobalt</term><term>Composite material</term><term>Concentration effect</term><term>Conducting material</term><term>Dispersion reinforced material</term><term>Dynamic mechanical properties</term><term>Epoxy resin</term><term>Experimental study</term><term>Mechanical loss</term><term>Metal particle</term><term>Morphology</term><term>Rheological properties</term><term>Viscoelasticity</term><term>aging</term><term>composites</term><term>fillers</term><term>resins</term><term>viscoelastic properties</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Chrome</term><term>Cobalt</term><term>Effet concentration</term><term>Epoxyde résine</term><term>Etude expérimentale</term><term>Matériau composite</term><term>Matériau conducteur</term><term>Matériau renforcé dispersion</term><term>Morphologie</term><term>Particule métallique</term><term>Perte mécanique</term><term>Propriété dynamomécanique</term><term>Propriété rhéologique</term><term>Viscoélasticité</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Chrome</term><term>Cobalt</term><term>Matériau composite</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Epoxy/ powder metal composites have interesting electrical properties, becoming conductors above the percolation threshold. To complete this study, mechanical investigations have been carried out to show the influence of the fillers on the mechanical performance of these composites. In this framework, different epoxy/metallic powders (Cobalt, Chromium) composites were prepared. Scanning Electron Microscopy showed that the dispersion of the metallic fillers in the matrix is almost homogeneous. The dynamic mechanical thermal analysis (DMTA) measurements showed the dependence of the viscoelastic parameters with the frequency, temperature, nature, and content of fillers. The main relaxations observed are the primary α relaxation (associated to the glass transition, Tg) and a secondary β relaxation. A second DMTA run on the same samples showed a slight increase of the Tg. It clearly showed that the used metallic fillers improve the mechanical properties of the obtained composites. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010</div></front></TEI><affiliations><list><country><li>Espagne</li><li>Maroc</li></country><region><li>Communauté de Madrid</li></region></list><tree><country name="Maroc"><noRegion><name sortKey="El Homrany, M" sort="El Homrany, M" uniqKey="El Homrany M" first="M." last="El Homrany">M. El Homrany</name></noRegion><name sortKey="Halim, M" sort="Halim, M" uniqKey="Halim M" first="M." last="Halim">M. Halim</name><name sortKey="Maaroufi, A" sort="Maaroufi, A" uniqKey="Maaroufi A" first="A." last="Maaroufi">A. Maaroufi</name><name sortKey="Maaroufi, A" sort="Maaroufi, A" uniqKey="Maaroufi A" first="A." last="Maaroufi">A. Maaroufi</name></country><country name="Espagne"><region name="Communauté de Madrid"><name sortKey="Benavente, R" sort="Benavente, R" uniqKey="Benavente R" first="R." last="Benavente">R. Benavente</name></region><name sortKey="Pere A, J M" sort="Pere A, J M" uniqKey="Pere A J" first="J. M." last="Pere A">J. M. 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