NDLI: Cobalt ion-containing epoxies

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Cobalt ion-containing epoxies

Content Provider	NASA Technical Reports Server (NTRS)
Author	St clair, A. K. Stoakley, D. M.
Copyright Year	1983
Description	Varying concentrations of an organometallic cobalt complex were added to an epoxy system currently used by the aerospace industry as a composite matrix resin. Methods for combining cobalt (III) acetylacetonate with a tetraglycidyl 4,4 prime - diaminodiphenylmethane-based epoxy were investigated. The effects of increasing cobalt ion concentration on the epoxy cure were demonstrated by epoxy gel times and differential scanning calorimetry cure exotherms. Analysis on cured cobalt-containing epoxy castings included determination of glass transition temperatures by thermomechanical analysis, thermooxidative stabilities by thermogravimetric analysis, and densities in a density gradient column. Flexural strength and stiffness were also measured on the neat resin castings.
File Size	553725
Page Count	18
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19840005241
Archival Resource Key	ark:/13960/t9t19v184
Language	English
Publisher Date	1983-11-01
Access Restriction	Open
Subject Keyword	Nonmetallic Materials Epoxy Resins Thermogravimetry Polymerization Curing Mechanical Properties Ions Stiffness Brittleness Glass Transition Temperature Cobalt Thermal Stability Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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