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Kinetic study of polymerization/curing of filament-wound composite epoxy resin systems with aromatic diaminesThe kinetics of polymerization/curing of a filament-wound composite epoxy resin consisting of an 80/20 DGEBA/DGEBD blend and an MDA/m-PDA blend (Tonox 60/40) was studied at various temperatures and at amine epoxy ratios between 1.1 and 4.4 by means of Fourier-transform (FT) IR and bulk viscosity measurements. The activation energy for the polymerization/curing reaction using an amine/epoxy ratio of 1.1 was 11.9 kcal/mole, in agreement with a previous value. The FT-IR conversion-time plots were fitted to a kinetic expression containing two rate constants with activation energies of 13.7 and 10.0 kcal/mole. The bulk viscosity followed the Williams et al. (1955) equation, with a Di Benedetto (1965) expression for the glass transition temperature.
Document ID
19870036173
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Golub, M. A.
(NASA Ames Research Center Moffett Field, CA, United States)
Lerner, N. R.
(NASA Ames Research Center Moffett Field, CA, United States)
Hsu, M. S.
(HC Chem Research and Service Corp. San Jose, CA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Journal of Applied Polymer Science
Volume: 32
ISSN: 0021-8995
Subject Category
Nonmetallic Materials
Accession Number
87A23447
Distribution Limits
Public
Copyright
Other

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