The effect of flow type and chemical functionalization on the dispersion of carbon nanofiber agglomerates in polypropylene

doi:10.1016/j.compositesa.2012.01.017

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/19370

Título:	The effect of flow type and chemical functionalization on the dispersion of carbon nanofiber agglomerates in polypropylene
Autor(es):	Novais, R. M. Covas, J. A. Paiva, M. C.
Palavras-chave:	Carbon fiber Polymer–matrix composites (PMCs) Electron microscopy Surface treatments A. Carbon fiber A. Polymer-matrix composites (PMCs) D. Electron microscopy E. Surface treatments
Data:	2-Fev-2012
Editora:	Elsevier
Revista:	Composites Part A: Applied Science and Manufacturing
Resumo(s):	Two melt mixing methods generating flow with different characteristics are compared to study the dispersion of 5% w/w carbon nanofibers in polypropylene, namely conventional twin-screw extrusion and the simple application of a converging/diverging flow sequence to the composite melt. The effect of nanofiber surface modification and compatibilization with polypropylene modified with maleic anhydride is also studied. The dispersion of the nanofiber agglomerates through the polymer, the electrical properties of the resulting composites and nanofiber/polymer interface achieved under the different mixing conditions are analyzed. The converging/diverging flow sequence generated a better dispersion as compared with the twin-screw extruder.
Tipo:	Artigo
URI:	https://hdl.handle.net/1822/19370
DOI:	10.1016/j.compositesa.2012.01.017
ISSN:	1359-835X
Versão da editora:	http://dx.doi.org/10.1016/j.compositesa.2012.01.017
Arbitragem científica:	yes
Acesso:	Acesso restrito UMinho
Aparece nas coleções:	IPC - Artigos em revistas científicas internacionais com arbitragem