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Record Details

Record 57 of 9690
Kinetic study of polymerization/curing of filament-wound composite epoxy resin systems with aromatic diamines
External Online Source: doi:10.1002/app.1986.070320536
Author and Affiliation:
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)
Abstract: The 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.
Publication Date: Jan 01, 1986
Document ID:
19870036173
(Acquired Nov 28, 1995)
Accession Number: 87A23447
Subject Category: NONMETALLIC MATERIALS
Document Type: Journal Article
Publication Information: Journal of Applied Polymer Science (ISSN 0021-8995); 32; 5215-522
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
HC Chem Research and Service; San Jose, CA, United States
Description: 15p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DIAMINES; EPOXY MATRIX COMPOSITES; POLYMERIZATION; REACTION KINETICS; SPACECRAFT CONSTRUCTION MATERIALS; COMPOSITE STRUCTURES; CURING; FILAMENT WINDING; GLASS TRANSITION TEMPERATURE; INFRARED SPECTROSCOPY
Imprint And Other Notes: Journal of Applied Polymer Science (ISSN 0021-8995), vol. 32, 1986, p. 5215-5229.
Availability Source: Other Sources
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