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Toughening effects of titanium dioxide nanoparticles on TiO 2 /epoxy resin nanocomposites
Author(s) -
Carballeira Pablo,
Haupert Frank
Publication year - 2010
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.20911
Subject(s) - materials science , composite material , epoxy , ultimate tensile strength , nanocomposite , nanoparticle , toughness , araldite , titanium dioxide , fracture toughness , elastic modulus , nanotechnology , adhesive , layer (electronics)
The purpose of this study was to investigate the influence of adding different volume concentrations of titanium dioxide (TiO 2 ) nanoparticles to an Araldite LY 564 epoxy resin. In order to characterize the nanoparticles toughening effects, compact tension specimens were used to determine the plane strain fracture toughness ( K IC ). Additionally, elastic modulus, tensile strength, and maximum sustained strain were measured in mechanical tensile tests. Composites were analyzed by means of electronic microscopy, both TEM and SEM, to check the dispersion quality of the nanoparticles in thepolymer matrix and to study the observed toughening mechanisms of the fillers. Addition of TiO 2 nanoparticles could simultaneously improve the stiffness and the toughness of the epoxy resin. POLYM. COMPOS., 31:1241–1246, 2010. © 2009 Society of Plastics Engineers