Development of Micro and Nanostructured Materials for Interfacial Self -Healing
type: CreativeWork
description: To investigate self-healing of an interface, a method is developed for sequestration of healing agent filled microcapsules and catalyst to the reinforcement-matrix interface. Microbond specimens, consisting of a single self-healing functionalized fiber embedded in a microdroplet of epoxy, are used to test virgin and healed fiber-matrix interfacial shear strength. When damage initiates at the fiber-matrix interface, the attached capsules rupture, and healing agent is released into the crack plane where it contacts the Grubbs' catalyst to initiate polymerization. Up to 44% recovery of virgin interfacial shear strength after full interfacial debonding is demonstrated. Additionally, no decrease in virgin interfacial shear strength for functionalized fibers is reported for the specific concentrations used to achieve recovery of interfacial shear strength.
abstract: To investigate self-healing of an interface, a method is developed for sequestration of healing agent filled microcapsules and catalyst to the reinforcement-matrix interface. Microbond specimens, consisting of a single self-healing functionalized fiber embedded in a microdroplet of epoxy, are used to test virgin and healed fiber-matrix interfacial shear strength. When damage initiates at the fiber-matrix interface, the attached capsules rupture, and healing agent is released into the crack plane where it contacts the Grubbs' catalyst to initiate polymerization. Up to 44% recovery of virgin interfacial shear strength after full interfacial debonding is demonstrated. Additionally, no decrease in virgin interfacial shear strength for functionalized fibers is reported for the specific concentrations used to achieve recovery of interfacial shear strength.
author: Blaiszik, Benjamin James
language: eng
keywords: Engineering, Materials Science
date published: 2015-09-28T16:23:50Z
date modified: 2026-07-22T22:26:30Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/87758