Assessment of solvent capsule-based healing for woven E-glass fibre-reinforced polymers

Vacuum Assisted Resin Infusion Molding (VARIM) with low vacuum pressure difference was used to manufacture woven glass fibre-reinforced epoxy resin plates, with a fibre volume fraction of approx. 50 vol% and containing ethyl phenylacetate (EPA)-filled capsules for self-healing purposes. Capsules were introduced by functionalising the fabrics through manual dispersion. We investigated the capability of autonomously healing delaminations induced by static loading in Mode I and II. Healing did not take place for composite samples; this was attributed to the presence of bare fibres on the crack plane and to the reduction of EPA diffusion into the matrix in the presence of fibres both of which hinder the swelling mechanism responsible for healing the cracks.


Published in:
Smart Materials And Structures, 24, 1
Year:
2015
Publisher:
Bristol, Iop Publishing Ltd
ISSN:
0964-1726
Keywords:
Laboratories:




 Record created 2015-05-29, last modified 2018-09-13


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