Improved Mechanical Properties of Compatibilized Polypropylene/Polyamide-12 Blends
Data(s) |
20/11/2015
20/11/2015
2015
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Resumo |
Compatibilized blends of polypropylene (PP) and polyamide-12 (PA12) as a second component were obtained by direct injection molding having first added 20% maleic anhydride-modified copolymer (PP-g-MA) to the PP, which produced partially grafted PP (gPP). A nucleating effect of the PA12 took place on the cooling crystallization of the gPP, and a second crystallization peak of the gPP appeared in the PA12-rich blends, indicating changes in the crystalline morphology. There was a slight drop in the PA12 crystallinity of the compatible blends, whereas the crystallinity of the gPP increased significantly in the PA12-rich blends. The overall reduction in the dispersed phase particle size together with the clear increase in ductility when gPP was used instead of PP proved that compatibilization occurred. Young's modulus of the blends showed synergistic behavior. This is proposed to be both due to a change in the crystalline morphology of the blends on the one hand and, on the other, in the PA12-rich blends, to the clear increase in the crystallinity of the gPP phase, which may, in turn, have been responsible for the increase in its continuity and its contribution to the modulus. |
Identificador |
International Journal of Polymer Science 2015 : (2015) // Article ID 742540 1687-9422 http://hdl.handle.net/10810/16136 10.1155/2015/742540 |
Idioma(s) |
eng |
Publicador |
Hindawi Publishing Corporation |
Relação |
http://www.hindawi.com/journals/ijps/2015/742540/ |
Direitos |
Copyright © 2015 N. Aranburu and J. I. Eguiaz´abal. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. info:eu-repo/semantics/openAccess |
Palavras-Chave | #reactive compatibilization #phase morphology #nylon-6 blends #crystallization #polyamide #nanocomposites #polypropylenes #polyolefins #adhesion #polymer science |
Tipo |
info:eu-repo/semantics/article |