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Healing efficiency of epoxy‐based materials for structural applications
Author(s) -
Raimondo Marialuigia,
Guadagno Liberata
Publication year - 2013
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22539
Subject(s) - materials science , thermosetting polymer , epoxy , composite material , romp , self healing material , polymerization , composite number , self healing , glass transition , nanocapsules , polymer , dynamic mechanical analysis , metathesis , nanotechnology , medicine , alternative medicine , pathology , nanoparticle
Self‐healing is receiving increasing interest worldwide as a technology to autonomously address the effects of damage in composite materials. This article relates to a self‐healing composite exhibiting high levels of healing efficiency under working conditions typical of aeronautic materials. The self‐healing material is composed of a thermosetting epoxy matrix in which a catalyst of Ring Opening Metathesis Polymerization (ROMP) and nanocapsules are dispersed. The nanocapsules contain a monomer able to polymerize via ROMP. Dynamic mechanical analysis was used to determine mechanical parameters. The autorepair composite shows a high modulus in a wide temperature range, a glass transition temperature at about 110°C and a self‐healing efficiency of about 97%. POLYM. COMPOS., 34:1525–1532, 2013. © 2013 Society of Plastics Engineers