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Effect of adding different amounts of graphite nanoplatelets on structural, thermal, mechanical and viscoelastic properties of vinylester based composites cured at 25°C
Author(s) -
JofreReche José A.,
AliaGarcía Cristina,
SuárezBermejo Juan C.,
ArenasReina José M.,
Miguel MartínMartínez José
Publication year - 2018
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.24283
Subject(s) - materials science , composite material , ultimate tensile strength , graphite , elongation , thermal stability , composite number , viscoelasticity , monomer , polymer , matrix (chemical analysis) , chemical engineering , engineering
Different amounts (0.1–5wt%) of graphite nanoplatelets (GNs) were added to vinylester (VE) for improving the properties of the composites cured at 25°C. The addition of 0.1wt% GN only increased the T g and the thermal stability of the composite cured at 25°C. Furthermore, the addition of GN increased both the tensile strength and elongation‐at‐break of the composites cured at 25°C, but the effect of adding GN was less important when cured at 100°C. The improved properties of the composites were ascribed to the interactions between the oxygen species on the GN edges and the C==O and OH groups in the VE monomer, and to the higher fraction of the partially crosslinked polymer within the matrix. POLYM. COMPOS., 39:E1381–E1390, 2018. © 2017 Society of Plastics Engineers