| Titre : |
Polyoxymethylene/polyhedral oligomeric silsesquioxane composites : processing, crystallization, morphology and thermo-mechanical behavior |
| Type de document : |
texte imprimé |
| Auteurs : |
D. Czarnecka-Komorowska, Auteur ; T. Sterzynski, Auteur ; M. Dutkiewicz, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 598-606 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse thermique
Analyse thermomécanique dynamique
Cristallisation
Microscopie électronique à balayage
Morphologie (matériaux)
Polyoxyméthylène
Silsesquioxanes oligomères polyhèdres
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Polyoxymethylene composites with octakis (dimethylsiloxy, ethyl epoxycyclohexy)octasilsesquioxanes and octakis(dimethylsiloxy, vinyl)octasilsesquioxanes contents (0.5 and 1 wt.%) were studied. The effect of silsesquioxanes (POSS) on crystallization and melting behaviour of polyoxymethylene (POM) was investigated by polarized light microscope (PLM), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM), with the aim to determine the structural properties like crystallization temperature, degree of crystallinity and lamellar thickness distributions. It was found that POSS as nucleating agent affects the crystallization process of POM, leading to a homogeneous structure, improving the thermo-mechanical properties of polyoxymethylene composites. Based on SEM observations it was found that the POSS particles in a concentration of 0.5 wt.% are uniformly dispersed in polyoxymethylene matrix. The storage modulus and relaxations temperatures of POM with POM/0.5 wt.% ehPOSS and vinPOSS are slightly increased. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Processing and molding conditions of POM/POSS composites - Differential scanning calorimetry (DSC) - Polarized light microscope (PLM) - Scanning electron microscopy (SEM) - Dynamic mechanical thermal analysis (DMTA)
- RESULTS AND DISCUSSION : Crystallization and melting properties - PLM morphology analysis - Dynamic mechanical properties analysis - SEM analysis |
| DOI : |
10.3139/217.3243 |
| En ligne : |
https://drive.google.com/file/d/1o96jOA47zJ-za57Ol3O4ISaC-hpEG6oc/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27397 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 5 (11/2016) . - p. 598-606
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