Dynamic mechanical analysis of fumed silica/cyanate ester nanocomposites
Fumed silica particles with average primary particle diameters of 12 and 40nm were combined with a low viscosity bisphenol E cyanate ester resin to form composite materials with enhanced storage modulus and reduced damping behavior, as evidenced by dynamic mechanical analysis (DMA). The storage modu...
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| Veröffentlicht in: | Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2008-05, Vol.39 (5), p.761-768 |
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| container_title | Composites. Part A, Applied science and manufacturing |
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| creator | Goertzen, William K. Kessler, M.R. |
| description | Fumed silica particles with average primary particle diameters of 12 and 40nm were combined with a low viscosity bisphenol E cyanate ester resin to form composite materials with enhanced storage modulus and reduced damping behavior, as evidenced by dynamic mechanical analysis (DMA). The storage modulus increased with volume fraction of fumed silica in both the glassy and rubbery regions, but the increase was more pronounced in the rubbery region. The maximum increase in storage modulus in the glassy region was 75% for 20.7vol% of 40nm fumed silica, while the same composition showed a 231% increase in the rubbery storage modulus. Furthermore, decreases in damping behavior were used to estimate the effective polymer-particle interphase thickness. The glass transition temperature of the nanocomposites was not changed significantly with increasing volume fraction. |
| doi_str_mv | 10.1016/j.compositesa.2008.02.006 |
| format | Article |
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The storage modulus increased with volume fraction of fumed silica in both the glassy and rubbery regions, but the increase was more pronounced in the rubbery region. The maximum increase in storage modulus in the glassy region was 75% for 20.7vol% of 40nm fumed silica, while the same composition showed a 231% increase in the rubbery storage modulus. Furthermore, decreases in damping behavior were used to estimate the effective polymer-particle interphase thickness. The glass transition temperature of the nanocomposites was not changed significantly with increasing volume fraction.</description><identifier>ISSN: 1359-835X</identifier><identifier>EISSN: 1878-5840</identifier><identifier>DOI: 10.1016/j.compositesa.2008.02.006</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>A. Polymer matrix composites (PMCs) ; Applied sciences ; B. Mechanical properties ; B. Thermal properties ; C. 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Polymer matrix composites (PMCs)</subject><subject>Applied sciences</subject><subject>B. Mechanical properties</subject><subject>B. Thermal properties</subject><subject>C. 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| source | Elsevier ScienceDirect Journals Complete |
| subjects | A. Polymer matrix composites (PMCs) Applied sciences B. Mechanical properties B. Thermal properties C. Micro-mechanics Composites Exact sciences and technology Forms of application and semi-finished materials Polymer industry, paints, wood Technology of polymers |
| title | Dynamic mechanical analysis of fumed silica/cyanate ester nanocomposites |
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