Flow properties and morphology of PC/LCP blends affected by the addition of glass fiber and resulted mutual influences / X. Zheng in INTERNATIONAL POLYMER PROCESSING, Vol. XVIII, N° 1 (03/2003)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XVIII, N° 1 (03/2003) . - p. 3-11 Titre : Flow properties and morphology of PC/LCP blends affected by the addition of glass fiber and resulted mutual influences Type de document : texte imprimé Auteurs : X. Zheng, Auteur ; B. Zhang, Auteur ; J. Zhang, Auteur ; Y. Xue, Auteur ; J. He, Auteur Année de publication : 2003 Article en page(s) : p. 3-11 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : In-situ hybrid composites containing matrix polycarbonate, glass fiber and LCP are prepared. The morphology of LCP and the rheological behavior of the composites are described. The relationship between flowability and morphology is discussed. It is interesting to find that in some hybrid systems, composites containing more glass fiber have better flowability than composites containing less glass fiber. Glass fiber aspect ratio is an important factor that determines the flowability. Materials with short glass fiber have lower viscosities than the materials with long glass fiber. LCP morphology is another important parameter that determines the flowability of the composites. If LCP forms fibrils, the composites have better flowability. If spheres dominate the morphology of LCP, the materials have larger viscosity. The addition of glass fiber brings about new factors that influence the morphology of LCP. The LCP morphology is not only affected by LCP content, but also by glass fiber content and glass fiber length. LCP fibrils are promoted in some in-situ hybrid composites. A model is proposed to describe how fibrillation of LCP is promoted due to the addition of glass fiber DOI : 10.3139/217.1716 En ligne : https://drive.google.com/file/d/15xKO4djAM7tuKucLP7HGKWPi5zsf5bzM/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15845 [article]

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A new method for simulating the conveying of solid pellets / K. L. Yung in INTERNATIONAL POLYMER PROCESSING, Vol. XVII, N° 2 (06/2002)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XVII, N° 2 (06/2002) . - p. 91-94 Titre : A new method for simulating the conveying of solid pellets Type de document : texte imprimé Auteurs : K. L. Yung, Auteur ; Y. Xue, Auteur ; K. H. Lau, Auteur Année de publication : 2002 Article en page(s) : p. 91-94 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : A new method for simulating the solid conveying process in plasticating machine is proposed in this paper. The new simulation method is superior to previous ones by having the ability in modeling the movements, in any direction, of solid pellets of any geometry or whether it is densely or sparsely packed. New normal and tangential contact force models are introduced. With the new method the solid conveying process are simulated more realistically. In the simulation, the effects of velocity of the barrel, the sliding frictions of the pellets against the barrel and the screw walls with respect to the solid conveying speed are studied, which coincide with empirical results Note de contenu : - SIMULATION METHOD - CONTACT FORCE MODELS - CONTACT IDENTIFICATIONS DOI : 10.3139/217.1689 En ligne : https://drive.google.com/file/d/17GNRn6zQ2UHF7NAm8G5mE1RUkGljzyz4/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15927 [article]

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