| タイトル | Physical aging in epoxy matrices and composites |
| 著者（英） | Kong, Eric Siu-Wai |
| 著者所属（英） | Hewlett-Packard Co. |
| 発行日 | 1986-01-01 |
| 言語 | eng |
| 内容記述 | Postcured specimens of Thornell 300 carbon-fiber/Fiberite 934 epoxy as well as Fiberite 934 epoxy resin were quenched from above the glass transition temperature and annealed at 140, 110, or 80 C for times up to 100,000 min. No weight gain or loss was observed during annealing at these temperatures, but significant time-dependent variations were observed in density, modulus, hardness, damping, moisture absorption ability, and thermal expansion characteristics. The relations between the excess thermodynamic properties of epoxy glasses and their time-dependent behavior are discussed. The discussion is illustrated by results obtained by differential scanning calorimetry, dynamic mechanical analysis, tensile testing, solid state nuclear magnetic resonance spectroscopy, and small-angle X-ray scattering. |
| NASA分類 | NONMETALLIC MATERIALS |
| レポートNO | 88A16672 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/373908 |
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