| Titre : |
Modelling of capillary rheometer data and extrapolation of the viscosity function into the linear viscoelastic region |
| Type de document : |
texte imprimé |
| Auteurs : |
A. Göttfert, Auteur ; E. O. Reher, Auteur ; I. M. Balagula, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 57-59 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
3- and 4 parameter modeis (Carreau-Winter, Sabia, Yasuda) are used for fitting capillary rheometer tests. These fitted data are then compared with rotational viscosimeter test data in the region of small deformation speeds. The results clearly demonstrate that the extrapolated capillary rheometer data acc. to the Sabia and Yasuda modeis yield goodpractice-relevant results. A good correlation was achieved between the calculated "zero viscosity" and the mean molecular mass and between the model curvature parameters and the width of the molecular mass distribution. For quality assurance in laboratory rheometery and on-line rheometry these obtained good results are of high importance. |
| DOI : |
10.3139/217.1520 |
| En ligne : |
https://drive.google.com/file/d/1hVrTy3_G6vb13zL3K9Np5VtIOE9QBrR8/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16112 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XIV, N° 1 (03/1999) . - p. 57-59
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