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М.Н. Копицына, И.В. Бессонов, С.В. Котомин
8
Инженерный журнал: наука и инновации
# 12·2016
Fracture strength of epoxy binders modified
by thermoplastic polysulfone and furfural-acetone resin
© M.N. Kopitsyna, I.V. Bessonov, S.V. Kotomin
Bauman Moscow State Technical University, Moscow, 105005, Russia
The paper continues researches into modification of bisphenol epoxy resin using heat re-
sistant thermoplastic polymers and reactive diluents, i.e. furfural-acetone resin, in order
to improve epoxy resin properties for polymeric composites. It is shown that viscosity of
such blend compounds is greatly reduced in comparison with epoxy resin containing only
one polysulfone additive at the same glass transition temperature of the cured binder.
A combined impact of both polysulfone additives and furfural-acetone resin on mechanical
properties of the cured binder, in particular on fracture strength, is studied. Both the frac-
ture strength and material morphology in the fracture zone of the cured binder are ana-
lyzed. The modified binder is shown to have higher fracture strength at the current heat re-
sistance. The obtained results will be useful for a wide range of professionals dealing with
polymeric composite technology as well as structures based on them.
Keywords:
polymer compounds, micro-defects, fracture strength, thermoplastics, epoxy
resin, polysulfone
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Kopitsyna M.N.
(b. 1990) graduated from Lomonosov Moscow State University in
2012. A
post-graduate student, Bauman Moscow State Technical University. Author of