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Fracture Toughness Enhancement of UV‐Cured Epoxy Coatings Containing Al 2 O 3 Nanoparticles
Author(s) -
Sangermano Marco,
Naguib Mohamed,
Messori Massimo
Publication year - 2013
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201200346
Subject(s) - materials science , epoxy , composite material , fracture toughness , curing (chemistry) , nanoparticle , surface roughness , toughness , fourier transform infrared spectroscopy , nanocomposite , scratch , chemical engineering , engineering , nanotechnology
Commercially available alumina powder (α‐Al 2 O 3 nanoparticles with 150 nm diameter) is added up to 4 vol% into cycloaliphatic epoxy resins and cured using UV light. Chemical and physical investigations of these UV‐cured, reinforced epoxy resin are carried out. The FTIR analysis indicates decreasing effect of these nanoparticles on the curing rate. The FESEM study for the fracture surface of reinforced epoxy resins revealed increase in the surface roughness that might be a sign of toughness enhancement. Also, an improvement in the scratch resistance was noticed for samples containing alumina filler.