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Rheological percolation behavior and isothermal crystallization of poly(butyene Succinte)/carbon nanotube composites / Lijuan Yuan in Industrial & engineering chemistry research, Vol. 50 N° 24 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 24 (Décembre 2011) . - pp. 14186-14192 Titre : Rheological percolation behavior and isothermal crystallization of poly(butyene Succinte)/carbon nanotube composites Type de document : texte imprimé Auteurs : Lijuan Yuan, Auteur ; Defeng Wu, Auteur ; Ming Zhang, Auteur Année de publication : 2012 Article en page(s) : pp. 14186-14192 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Composite  material  Crystallization Résumé : Carbon nanotube (CNT) filled poly(butylene succinate) composites (PBSCNs) were prepared by melt compounding. The oscillatory rheological properties and crystallization behavior and kinetics were then investigated. The results show that the percolation network of CNTs in the small amplitude oscillatory shear flow is temperature dependent and the values of percolation thresholds reduce gradually with an increase of temperature. Therefore, the principle of time-temperature superposition is invalid on the dynamic rheological responses of those percolated PBSCNs. Besides, the presence of CNTs highly promotes the crystallization of PBS, increasing the overall crystallization rate. But the nucleation mechanism of PBS is not altered with addition of CNTs because the PBS itself is nucleated heterogeneously. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25299889 [article] Rheological percolation behavior and isothermal crystallization of poly(butyene Succinte)/carbon nanotube composites [texte imprimé] / Lijuan Yuan, Auteur ; Defeng Wu, Auteur ; Ming Zhang, Auteur . - 2012 . - pp. 14186-14192. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 24 (Décembre 2011) . - pp. 14186-14192 Mots-clés : Composite  material  Crystallization Résumé : Carbon nanotube (CNT) filled poly(butylene succinate) composites (PBSCNs) were prepared by melt compounding. The oscillatory rheological properties and crystallization behavior and kinetics were then investigated. The results show that the percolation network of CNTs in the small amplitude oscillatory shear flow is temperature dependent and the values of percolation thresholds reduce gradually with an increase of temperature. Therefore, the principle of time-temperature superposition is invalid on the dynamic rheological responses of those percolated PBSCNs. Besides, the presence of CNTs highly promotes the crystallization of PBS, increasing the overall crystallization rate. But the nucleation mechanism of PBS is not altered with addition of CNTs because the PBS itself is nucleated heterogeneously. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25299889