Effect of material species on flash generation of PPS/GF composites / H. Higuchi in INTERNATIONAL POLYMER PROCESSING, Vol. XX, N° 2 (06/2005)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XX, N° 2 (06/2005) . - p. 215-223 Titre : Effect of material species on flash generation of PPS/GF composites Type de document : texte imprimé Auteurs : H. Higuchi, Auteur ; K. Koyama, Auteur ; H. Goto, Auteur Année de publication : 2005 Article en page(s) : p. 215-223 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : Reduction of flash in injection molding is of great concern for manufacturers of electrical parts. In a previous report we have proposed a theoretical model for flash generation. The present study prepares five different poly(phenylene sulfide)/glass fiber composites using three different PPS; linear, branched and crosslinked PPS and measures the length of flash generated in the molding of the composites. Then, we have compared the flash data with a flash parameter defined in the model. This comparison has elucidated that flash length can be related with the flash parameter irrespective of PPS structure, as long as GF content is the same and the clearance of a gas vent is almost identical. DOI : 10.3139/217.1885 En ligne : https://drive.google.com/file/d/1mbDrGziW9oucOQG6HWTN6FJoNwVQRe3H/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3082 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001970	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Flow analyses in a spiral mandrel die assuming wall slip / H. Higuchi in INTERNATIONAL POLYMER PROCESSING, Vol. XVIII, N° 4 (12/2003)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XVIII, N° 4 (12/2003) . - p. 349-355 Titre : Flow analyses in a spiral mandrel die assuming wall slip Type de document : texte imprimé Auteurs : H. Higuchi, Auteur ; K. Koyama, Auteur Année de publication : 2003 Article en page(s) : p. 349-355 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : It is often observed in industrial practice that the thickness uniformity of blown film obtained with a given die varies with the type of polymer. We have shown in previous works the importance of the wall slip of polymer melt in the film uniformity. Currently available models of polymer melt flow through spiral mandrel dies neglect the wall slip. The present work considers the slip in flow analyses and predicts the effects of rheological properties on the uniformity; the decreases in melt viscosity and wall slip and the increases in shear thinning and the stress dependence of wall slip reduce the uniformity. The predictions agree well with the experimental results obtained in our previous studies. Note de contenu : - FLOW ANALYSES : Basic ideas - Polymer flow model - Processing data for computation - RESULTS AND DISCUSSION : Flow distibution at spiral end zone - Effect of rheological properties on flow distribution - Effects of flow rate on flow distribution - Can die design eliminate effect of wall slip on flow distribution ? - Comparison of flow analyses with experiments DOI : 10.3139/217.1783 En ligne : https://drive.google.com/file/d/1fyerunO-PM32w300uedjlOngbz3zBt_X/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15817 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001026	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)