Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites

Nanocomposites based on epoxy resin and different weight percentages of unmodified, oxidized, and silanized multi-walled carbon nanotubes (MWCNTs) were prepared by cast molding method. Effects of MWCNTs content on the flexural properties were examined. The results showed that as the loading of the M...

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Veröffentlicht in:Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2009-07, Vol.40 (6), p.800-809
Hauptverfasser: Kathi, John, Rhee, Kyong-Yop, Lee, Joong Hee
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container_title Composites. Part A, Applied science and manufacturing
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creator Kathi, John
Rhee, Kyong-Yop
Lee, Joong Hee
description Nanocomposites based on epoxy resin and different weight percentages of unmodified, oxidized, and silanized multi-walled carbon nanotubes (MWCNTs) were prepared by cast molding method. Effects of MWCNTs content on the flexural properties were examined. The results showed that as the loading of the MWCNTs increased, improved flexural strength and flexural modulus were observed. The mechanical properties decreased when the MWCNTs content exceeded 0.2 wt.% due to agglomeration of MWCNTs. These results prove the effect of functionalization on the interfacial adhesion between epoxy and MWCNTs. This was further confirmed by morphology study of fractured surfaces of nanocomposites by SEM and TEM.
doi_str_mv 10.1016/j.compositesa.2009.04.001
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subjects A. Polymer–matrix composites (PMCs)
Applied sciences
B. Mechanical properties
Carbon nanotubes
Composites
E. Surface treatments
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
title Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites
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