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Development of quality assurance methods for epoxy graphite prepregQuality assurance methods for graphite epoxy/prepregs were developed. Liquid chromatography, differential scanning calorimetry, and gel permeation chromatography were investigated. These methods were applied to a second prepreg system. The resin matrix formulation was correlated with mechanical properties. Dynamic mechanical analysis and fracture toughness methods were investigated. The chromatography and calorimetry techniques were all successfully developed as quality assurance methods for graphite epoxy prepregs. The liquid chromatography method was the most sensitive to changes in resin formulation. The were also successfully applied to the second prepreg system.
Document ID
19820014444
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Chen, J. S. (Boeing Commercial Airplane Co. Seattle, WA, United States)
Hunter, A. B. (Boeing Commercial Airplane Co. Seattle, WA, United States)
Date Acquired
September 4, 2013
Publication Date
March 1, 1982
Publication Information
Publisher: NASA
Subject Category
Composite Materials
Report/Patent Number
NASA-CR-3531
NAS 1.26:3531
Accession Number
82N22318
Funding Number(s)
CONTRACT_GRANT: NAS1-15222
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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