| Titre : |
Tensile damage in ternary melamine-formaldehyde composites |
| Type de document : |
texte imprimé |
| Auteurs : |
P.-O. Hagstrand, Auteur ; R. W. Rychwalski, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 296-308 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
A new ternary planar random fiber composite (PRFC) is studied. It is a discontinuous glass fiber-reinforced, alumina trihydrate (ATH)-filled, melamine-formaldehyde (MF)-based composite of high fire resistance. Composites were manufactured from a commercially available molding compound using a Chopped Strand Mat (CSM), and compared with other ones obtained by varying the composition. Also, a comparison is made for grades with a high content of ATH but with different fiber architectures, realized by replacing the CSM mat by a needled mat.
The amount and type of tensile damage is shown. An elastic-damage type parameter is discussed and used. In-situ Scanning Electron Microscopic (SEM) observations on polished surfaces of samples mounted in a tensile stage and subject to tensile load, and observations on as-obtained surfaces are made. Stress-strain behavior depending on damage is analyzed, and possibilities of improvement of mechanical properties are postulated. |
| Note de contenu : |
- MEASURE OF DAMAGE : Damage parameter - Irreversible strain
- REINFORCED MELAMINE COMPOUND (RMC) : Melamine-formaldehyde (MF) - Glass fibers - Alumina trihydrate [33]
- EXPERIMENTAL : Materials - Monotonic and cyclic straining - In-situ SEM - Stress relaxation
- RESULTS AND DISCUSSION : Monotonic stress-strain behavior - Cyclic stress-strain behavior - Viscoelastic behavior - In-situ SEM results - Stained sample study |
| DOI : |
10.3139/217.1548 |
| En ligne : |
https://drive.google.com/file/d/1EEoclUMfv-CFH8ndNNErn8rJd811MB86/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16141 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XIV, N° 3 (09/1999) . - p. 296-308
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