| Titre : |
Study on permeability of porous ultra-high molecular weight polyethylene (UHMWPE) |
| Type de document : |
texte imprimé |
| Auteurs : |
B.-Y. Jiang, Auteur ; M.-Y. Zhou, Auteur ; Can Weng, Auteur ; C.-F. Li, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 159-164 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse thermique
Essais dynamiques
FrittageLe frittage est un procédé de fabrication de pièces consistant à chauffer une poudre sans la mener jusqu’à la fusion. Sous l'effet de la chaleur, les grains se soudent entre eux, ce qui forme la cohésion de la pièce.
Matériaux poreux
Perméabilité
Polyéthylène à ultra haut poids moléculaire
Polymères -- Propriétés mécaniques
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In recent years, porous materials are gaining in popularity for engineering applications, due to their special characteristics, such as low density, large specific surface area, and excellent permeability. In this study, powder processing technique was used to prepare ultra-high molecular weight polyethylene UHMWPE porous materials. Sintering temperature was obtained by combining differential scanning calorimetry (DSC) analysis and tensile tests. The surface morphology of sintering necks and tensile fracture were observed by scanning electron microscopy (SEM). Finally, single factor tests and orthogonal experiments were conducted to optimize three main processing parameters for a better permeability. It is found that the proper sintering temperature range would be from 143 to 153.1°C. According to the significance of influence, processing factors come in the sequence of the particle size, the compaction strength and the sintering temperature. Porous materials were successfully prepared, under the optimized parameters as the particle size >250 ?m, the compaction strength of 2.5 MPa and the sintering temperature of 152°C. |
| Note de contenu : |
- DETERMINATION OF SINTERING TEMPERATURE RANGE : Sinter material - Thermal analysis - Preparation of porous UHMWPE material - Tensile strenght
- EXPERIMENTS : Microstructures of UHMWPE porous material - Calculation of permeability - Single factor tests ans orthogonal tests
- RESULTS AND DISCUSSION : Effects of processing parameters on permeability - Optimization of processing parameters |
| DOI : |
10.3139/217.3189 |
| En ligne : |
https://drive.google.com/file/d/12WC98I6-a_6__miHLY5WU9GWRj9t9L0E/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28491 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 2 (05/2017) . - p. 159-164
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