Effect of aging on the reinforcement efficiency of carbon nanotubes in epoxy matrix

Autor: Jinbo Bai, Pierre Evesque, Aïssa Allaoui
Přispěvatelé: Laboratoire de mécanique des sols, structures et matériaux (MSSMat), CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Aging
Materials science
FOS: Physical sciences
Physics - Classical Physics
02 engineering and technology
Carbon nanotube
[SPI.MECA.MSMECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Materials and structures in mechanics [physics.class-ph]
010402 general chemistry
Elastomer
Polymer Matrix-Composites
01 natural sciences
law.invention
Stress (mechanics)
[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]
law
Mechanical Properties
General Materials Science
Composite material
[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
Reinforcement
Elastic modulus
Condensed Matter - Materials Science
Mechanical Engineering
Payne Effect
Materials Science (cond-mat.mtrl-sci)
Classical Physics (physics.class-ph)
Epoxy
[PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph]
021001 nanoscience & nanotechnology
0104 chemical sciences
Payne effect
Mechanics of Materials
visual_art
visual_art.visual_art_medium
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
Carbon Nanotubes
0210 nano-technology
Glass transition
Zdroj: Journal of Materials Science
Journal of Materials Science, Springer Verlag, 2008, 43 (14), pp.5020-5022. ⟨10.1007/s10853-008-2728-5⟩
J. Mater Sci
J. Mater Sci, 2008, ⟨10.1007/s10853-008-2728-5⟩
J Mater Sci
J Mater Sci, 2008, 43 (14), pp.5020-5022
ISSN: 0022-2461
1573-4803
DOI: 10.1007/s10853-008-2728-5⟩
Popis: International audience; The reinforcement efficiency of carbon nanotubes (CNTs) in epoxy matrix was investigated in the elastic regime. Cyclic uniaxial tensile tests were performed at constant strain amplitude and increasing maximum strain. Post-curing of the epoxy and its composite at a temperature close to the glass transition temperature allowed us to explore the effect of aging on the reinforcement efficiency of CNT. It is found that the reinforcement efficiency is compatible with a mean field mixture rule of stress reinforcement by random inclusions. It also diminishes when the maximum strain increased and this effect is amplified by aging. The decrease of elastic modulus with increasing cyclic maximum strain is quite similar to the one observed for filled elastomers with increasing strain amplitude, a phenomenon often referred as the Payne effect.
Databáze: OpenAIRE
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