Comprehensive Study on Using VTBN Reactive Oligomer for Rubber Toughening of Epoxy Resin and Composite

Fakhar, A. and Seyed Salehi, M. and Keivani, M. and Abadyan, M. (2016) Comprehensive Study on Using VTBN Reactive Oligomer for Rubber Toughening of Epoxy Resin and Composite. Polymer - Plastics Technology and Engineering, 55 (4). pp. 343-355.

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Abstract

While vinyl-terminated butadiene acrylonitrile is frequently used for the toughening of vinylester and polyester, very limited research has been conducted on modification of epoxy with this oligomer. Herein, the effect of vinyl-terminated butadiene acrylonitrile addition to epoxy in bulk and glass reinforced composite is systematically investigated. Thermo-physical behavior and mechanical characteristics of the samples are determined. To interpret the test results, the void content of reinforced samples is measured and fracture surface of the specimens is investigated. It is found that vinyl-terminated butadiene acrylonitrile improves the toughness with slight negligible effects on other characteristics. Incorporation of 15 phr of vinyl-terminated butadiene acrylonitrile increases the KIC of epoxy from 0.6 MPa to 2.3 MPam0.5. Similarly, addition of 15 phr vinyl-terminated butadiene acrylonitrile leads to 67% enhancement in the interlaminar fracture toughness of composites. The toughening mechanisms and toughness transfer from bulk to composite are discussed. © 2016, Copyright © Taylor & Francis Group, LLC.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: Epoxy resin, glass reinforced composite, mechanical properties, rubber toughening, thermophysical characteristics, vinyl-terminated butadiene acrylonitrile, VTBN
Subjects: QT physiology
Divisions: Faculty of Medicine > Department of Clinical Sciences > Department of Radiology
Reserach Vice-Chancellar Department
Depositing User: zahra bagheri .
Date Deposited: 05 Jul 2017 08:07
Last Modified: 05 Jul 2017 08:07
URI: http://eprints.skums.ac.ir/id/eprint/810

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