Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Montmorillonite/polypropylene nanocomposites: Mechanical properties, crystallization and rheological behaviors
Abstract In this work, montmorillonite (Mt) was modified by octadecyl amine ethoxylate ether (A) which has two poly(ethylene oxide) segments. Montmorillonite/polypropylene (Mt/PP) nanocomposites were prepared by a melt blending technique using different contents of modified Mt with and without maleic anhydride grafted polypropylene (PPg). The intercalated and exfoliated structures of Mt/PP nanocomposites were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Because of the typical intercalated and exfoliated structures, the mechanical properties of Mt/PP nanocomposites were improved significantly. The modified Mt in a PP matrix led to a significant reduction of melt viscosity and enhancement in Izod-notched impact strength and elongation at break. The Izod-notched impact strength and elongation at break of Mt/PP nanocomposites were 1.95 and 2.77 times as high as those of pure PP. The tensile strength of Mt/PP nanocomposites was also improved in the presence of PPg.
Research Highlights ► Montmorillonit (Mt) was modified by polyether. ► The modified Mt in PP matrix led to a significant reduction of melt viscosity. ► The mechanical properties of the Mt/PP nanocomposites were improved significantly.
Montmorillonite/polypropylene nanocomposites: Mechanical properties, crystallization and rheological behaviors
Abstract In this work, montmorillonite (Mt) was modified by octadecyl amine ethoxylate ether (A) which has two poly(ethylene oxide) segments. Montmorillonite/polypropylene (Mt/PP) nanocomposites were prepared by a melt blending technique using different contents of modified Mt with and without maleic anhydride grafted polypropylene (PPg). The intercalated and exfoliated structures of Mt/PP nanocomposites were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Because of the typical intercalated and exfoliated structures, the mechanical properties of Mt/PP nanocomposites were improved significantly. The modified Mt in a PP matrix led to a significant reduction of melt viscosity and enhancement in Izod-notched impact strength and elongation at break. The Izod-notched impact strength and elongation at break of Mt/PP nanocomposites were 1.95 and 2.77 times as high as those of pure PP. The tensile strength of Mt/PP nanocomposites was also improved in the presence of PPg.
Research Highlights ► Montmorillonit (Mt) was modified by polyether. ► The modified Mt in PP matrix led to a significant reduction of melt viscosity. ► The mechanical properties of the Mt/PP nanocomposites were improved significantly.
Montmorillonite/polypropylene nanocomposites: Mechanical properties, crystallization and rheological behaviors
Zhu, Shipeng (Autor:in) / Chen, Jinyao (Autor:in) / Zuo, Yuan (Autor:in) / Li, Huilin (Autor:in) / Cao, Ya (Autor:in)
Applied Clay Science ; 52 ; 171-178
21.02.2011
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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