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Influence of partial cross‐linking degree on basic physical properties of RTM6 epoxy resin
Author(s) -
MoosburgerWill Judith,
Greisel Michael,
Sause Markus G. R.,
Horny Robert,
Horn Siegfried
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39722
Subject(s) - glass transition , epoxy , materials science , curing (chemistry) , composite material , modulus , natural rubber , polymer , dynamic mechanical analysis , relaxation (psychology) , fragility , young's modulus , degree (music) , thermodynamics , psychology , social psychology , physics , acoustics
Thermo‐physical and mechanical properties of partially and completely cross‐linked RTM6 epoxy resin samples in the glassy state have been investigated. A significant dependence of glass transition temperature, density, and modulus on the curing history and the curing degree is found. Density and modulus decrease with increasing curing degree and show a step‐like irregularity in the so called transition region, which is related to the transition from rubber to glassy state during cross‐linking and the starting of structural relaxation processes. The relationship between the thermo‐physical and mechanical properties, which is important for the development of new processing routes for fiber reinforced polymers, is addressed. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4338–4346, 2013