Journal
MATERIALS & DESIGN
Volume 47, Issue -, Pages 16-20Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2012.12.035
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In this study, carboxyl-terminated butadiene acrylonitrile (CTBN) added to epoxy resin to improve the fracture property of resin and glass reinforced epoxy (GRE) composites. Tensile strength and Young's modulus of unreinforced resin with/without modifier were examined. Plane strain fracture toughness (K-IC) was calculated using single-edge-notch specimens that tested in three point bending (3PB) geometry. Results indicated that fracture toughness improve through increasing rubber modifier content. Fracture surfaces of the 3PB specimens were observed by using optical microscope and scanning electron microscope. Tensile properties perpendicular and parallel to the fibers direction were tested, respectively. GRE composite interlaminar fracture toughness increased with increasing rubber modifier in composite. (C) 2012 Elsevier Ltd. All rights reserved.
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