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Epoxy Nanocomposites

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*5/7/2012

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Articles with Abstracts

Microstructure and mechanical properties of epoxy hybrid nanocomposites modified with acrylic tri-block-copolymer and layered-silicate nanoclay
(945-954)
Composites Part A: Applied Science and Manufacturing 43 #6 (2012)
Bashar, Sundararaj and Mertiny of the University of Alberta and the University of Calgary, Canada, showed that the acrylic tri-block-copolymer preferentially self-assembled into spherical micelles in the epoxy matrix, and predominantly intercalated and few exfoliated platelets were observed with nanoclay.  Three-phase ternary nanocomposites showed coexistence of both intercalated nanoclay and nanostructured block-copolymer in epoxy.  Experimental results revealed that the block-copolymer significantly enhanced fracture toughness.  Increased toughness of epoxy coincided with a reduction of tensile stiffness and strength.  The nanoclay filled nanocomposites exhibited superior stiffness and slight improvement in tensile strength while compromising ductility.  Optimum property enhancement was observed in the case of epoxy hybrid nanocomposites.  Mechanical properties of the hybrid nanocomposites depend on microstructure, dispersion state and the ratio between organic and inorganic nanofiller contents. (RDC 5/7/2012)

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Roger D. Corneliussen
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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* Date of latest addition; date of first entry is 5/7/2012.