Effects of carbon nanotube size on the mode I interlaminar fracture behavior of E‐glass/epoxy nanocomposites: Static loading
Fatih Darıcık, Züleyha Aslan
Abstract
Abstract Three types of carboxyl‐functionalized multi‐walled carbon nanotubes (MWCNTs) were used to manufacture MWCNT‐modified laminates. The effects of the MWCNTs on the mode I interlaminar fracture toughness and the fracture propagation were investigated experimentally. Fractured surfaces were inspected with SEM micrographs to justify the effects of MWCNTs on the mode I fracture of the laminate. The short‐thin MWCNTs in a weight ratio of 0.3% increases mode I interlaminar fracture resistance of the laminate by about 2 times. The effects of long‐thin and long‐thick MWCNTs are quite low. Polymer crazing is the most important mechanism to improve interlaminar fracture properties.
Topics & Concepts
Materials scienceCrazingComposite materialCarbon nanotubeEpoxyNanocompositeFracture (geology)Fracture toughnessTougheningPolymerFracture mechanicsToughnessMechanical Behavior of CompositesEpoxy Resin Curing ProcessesTribology and Wear Analysis