Structural changes in a clay-containing nanocomposite with a different moisture content caused by its deformation

This paper presents the results of an investigation of the properties of a clay-containing nanocomposite with an epoxy binder under moisture-temperature and mechanical action. It has been established that whatever the moisture content, the nanocomposite crystallizes under the thermomechanical action...

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Bibliographic Details
Published inJournal of engineering physics and thermophysics Vol. 83; no. 3; pp. 443 - 451
Main Authors Faitel’son, E. A., Glaskova, T. I., Korkhov, V. P., Aniskevich, A. N.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.07.2010
Springer
Springer Nature B.V
Subjects
Analysis
Classical Mechanics
Complex Systems
Creep (materials)
Crystallization
Deformation
Degree of crystallinity
Engineering
Engineering Thermodynamics
Epoxy resins
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Moisture content
Nanocomposites
Nanomaterials
Nanoparticles
Nanostructure
Nanotechnology
Studies
Temperature
Thermodynamics
microheterogeneity
adsorption-active medium
X-ray structural analysis
morphological changes
induced elasticity
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Summary:This paper presents the results of an investigation of the properties of a clay-containing nanocomposite with an epoxy binder under moisture-temperature and mechanical action. It has been established that whatever the moisture content, the nanocomposite crystallizes under the thermomechanical action (upon reaching the glasstransition temperature). When the nanocomposite is heated to 70°C, the restructuring process is reversible, and its heating to above 150°C leads to its amorphization. The presence of clay nanoparticles (up to 6 mass percent) does not influence the temperature of structural transitions of the nanocomposite and does not cause a substantial strengthening effect. The sorbed moisture plasticizes the nanocomposite and decreases its glasstransition temperature by 10°C. The specific features of the thermomechanical behavior of nanocomposites upon their tensile prestrain or creep are due to the formation of an oriented structure. Their crystallization begins at lower temperatures and with a higher degree of crystallinity than that of unloaded nanostructures.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-010-0363-x