| Titre : |
Investigation of structure and properties in biaxially stretched poly(butylene terephthalate) films |
| Type de document : |
texte imprimé |
| Auteurs : |
K.-J. Song, Auteur ; J. L. White, Auteur |
| Année de publication : |
2000 |
| Article en page(s) : |
p. 406-415 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
Fibers and films - Effects of deformation history on the development of structure and properties in biaxially stretched poly(butylene terephthalate) (PBT) films are described. PBT cast films are stretched at two temperatures: 65°C and 90°C, with varying draw ratios. The refractometer and X-ray scattering techniques characterize the resultant films. As-stretched films have crystals of small sizes, in which the α crystals are appreciably larger and oriented more than the β phase. Films that are stretched at the low temperature, on the other hand, exhibit higher orientations of both the overall and amorphous chains. Annealing of the films under constraint causes the crystalline phase to undergo perfection and transition. A model of crystalline morphology is presented which describes the mechanical anisotropy present in biaxially oriented PBT films. |
| Note de contenu : |
- EXPERIMENTAL : Materials and film formation - Wide angle X-ray diffraction - Refractive index - Tensile test
- RESULTS : WAS flat film photographs - WAXS diffractometer scans - WAXS pole figures - SAXS scattering patterns - Refractive indices - Mechanical properties
- DISCUSSION : Crystal character - Crystalline orientation - Amorphous orientation - Crystalline morphology - Mechanical behavior |
| DOI : |
10.3139/217.1609 |
| En ligne : |
https://drive.google.com/file/d/19y0h6d6jeWQNq-UMjKpdBucj5jay2mzO/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16159 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XV, N° 4 (12/2000) . - p. 406-415
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