| Titre : |
Polymer melt impregnation of glass roving : Modelling and experimental |
| Type de document : |
texte imprimé |
| Auteurs : |
Phil J. Bates, Auteur ; X. P. Zou, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 376-386 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
Much attention has been recently focussed on the melt impregnation of thermoplastic polymers as a consequence of the difficulty involved in driving viscous polymer melt into a tightly packed fiber bundle. This work studies an impregnation process consisting a series of staggered cylindrical pins in a melt pool. A numerical model for evaluating the pressure generation in the wedge region between the roving/pin, the impregnation velocity of the melt through the glass mesh, and the resulting impregnation depth along the wedge is developed using relationships for pressure build-up in foil bearings and Darcy's law. The model results are compared with experimental melt impregnation data. The model adequately predicts the effect of melt impregnation process conditions on impregnation quality. |
| Note de contenu : |
- EQUIPMENT, PROCEDURE AND MATERIALS : Equipment - Materials - Impregnation assessment
- MODELLING : Assumptions - Pressure generation in the wedge region - Flow through the glass mesh - Impregnation depth and melt flow - Calculation of the impregnation number - Solving the system of impregnation equations
- RESULTS AND DISCUSSION : Comparison of experimental and model results - Discussion of impregnation model - Kozeny constant value - Pressure and impregnation profiles |
| DOI : |
10.3139/217.1705 |
| En ligne : |
https://drive.google.com/file/d/1JQ1yT3q90BnBLmJH3Yg1Jsq-yXdrnybb/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16042 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XVII, N° 4 (12/2002) . - p. 376-386
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