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Effect of surface treatment on the impact behaviour of fly-ash filled polymer composites

Kishore, * and Kulkarni, SM and Sunil, D and Sharathchandra, S (2002) Effect of surface treatment on the impact behaviour of fly-ash filled polymer composites. In: Polymer International, 51 (12). pp. 1378-1384.

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The impact behaviour of epoxy specimens containing 10% by volume of fly-ash particles with their surface treated for improving or decreasing adhesion is studied. The resulting behavioural patterns are listed and compared to those of composites containing untreated fly-ash particles and unreinforced (ie neat) epoxy. It was noticed that samples involving adhesion-increasing (ie acetone and silane) treatments show greater absorption of energy and maximum load compared to untreated samples and those subjected to adhesion-reducing treatments. Ductility index, however, showed a reversed trend with adhesion-reducing treatment yielding the highest value. In contrast, the energy absorbed was highest for neat resin and lowest for oil surface bearing ash particulate composites. Scanning electron microscope examination of the failed samples was carried out to obtain information on the fracture features with the aim of correlating microstructure to impact response. Thus, the higher ductility indices cases are shown to be distinct and different from composites containing other surface treatments for fillers. (C) 2002 Society of Chemical Industry.

Item Type: Journal Article
Publication: Polymer International
Publisher: John Wiley and Sons
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 02 Jun 2009 07:07
Last Modified: 19 Sep 2010 05:26
URI: http://eprints.iisc.ac.in/id/eprint/18999

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