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Epoxy composites based on glass beads. I. Viscoelastic properties

✍ Scribed by N. Amdouni; H. Sautereau; J. F. Gerard

Book ID
102735726
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
809 KB
Volume
45
Category
Article
ISSN
0021-8995

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✦ Synopsis

The viscoelastic behavior of glass beads composites are studied. Untreated, silane-treated and elastomer-coated glass beads were used, dispersed in a DGEBA-DDA-BDMA epoxy matrix. Using low frequency experiments, the three-phase structure of coated glass bead composites is demonstrated. The characteristics of both the a and 0 relaxations of the epoxy networks are analyzed and discussed. The 0 relaxation is independent of volume fraction and glass treatment. On the contrary, the position of the a relaxation increases strongly with glass volume fraction and silane treatment. The introduction of the elastomer as a thin layer at the filler/matrix interface induces a large chain mobility, thus decreasing the temperature position of the a peak.

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Hybrid-particulate composites based on an epoxy matrix, a reactive rubber, and glass beads: Morphology, viscoelastic, and mechanical properties
✍ A. Maazouz; H. Sautereau; J. F. Gerard πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 986 KB

The deformation and fracture behaviors of hybrid-particulate epoxy composites have been examined. These materials were based on a DGEBA/DDA matrix with various volume fractions of glass beads and different rubber contents. Young's modulus, yield stress, dynamic mechanical spectra, and fracture energ