[article]
| Titre : |
Effect of annealing conditions on thermal properties and crystallization behavior of poly(ethylene terephthalate) |
| Type de document : |
texte imprimé |
| Auteurs : |
M.-Y. Lyu, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 118-124 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Résumé : |
Thermal properties and crystallization behavior of PET were investigated by controlling the annealing conditions, such as relative humidity, annealing temperature, and annealing time. The variations of moisture content, glass transition temperature (Tg) and cold crystallization temperature (Tcc) were analyzed after annealing the PET specimens. Crystallization processing was performed with annealed PET specimens, and then the degree of crystallinity and the heat distortion temperature (HDT) were examined. Moisture content in the PET specimens increased with increasing the relative humidity, annealing temperature, and annealing time. Tg and Tcc of the annealed PET specimens decreased with increasing moisture content. The degree of crystallinity increased as increasing moisture content in the PET specimens. Although the moisture contents in the specimens after annealing were the same, the degree of crystallinity varied. The degree of crystallinity was affected by residual stress for constant moisture content. The relaxation of residual stress in the PET specimens differed depending on the annealing conditions, and the maximum degree of crystallinity increased with decreasing residual stress in the PET specimens. |
| Note de contenu : |
EXPERIMENTAL : Material and specimen - Measurement of HDT for crystallized PET - Annealing and analysis of annealed PET specimen - Crystallization and measurement of degree of crystallinity.
RESULTS AND DISCUSSION : HDT in crystallized specimens - Moisture content in annealed specimens - 3.3 Tg and Tcc in annealed specimens - Degree of crystallinity according to annealing conditions - Relaxation of residual stress in annealed specimens - Relationship between crystallinity and residual stress. |
| DOI : |
10.3139/217.2290 |
| En ligne : |
https://drive.google.com/file/d/1R0th_7gdYMEyoW1VNORBe1CPOORyjLjl/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9325 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXV, N° 2 (05/2010) . - p. 118-124
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Effect of annealing conditions on thermal properties and crystallization behavior of poly(ethylene terephthalate) in INTERNATIONAL POLYMER PROCESSING, Vol. XXV, N° 2 (05/2010)
