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Monitoring processing properties of high performance thermoplastics using frequency dependent electromagnetic sensingAn in situ NDE dielectric impedance measurement method has been developed for ascertaining the cure processing properties of high temperature advanced thermoplastic and thermosetting resins, using continuous frequency-dependent measurements and analyses of complex permittivity over 9 orders of magnitude and 6 decades of frequency at temperatures up to 400 C. Both ionic and Debye-like dipolar relaxation processes are monitored. Attention is given to LARC-TPI, PEEK, and poly(arylene ether) resins' viscosity, glass transition temperature, recrystallization, and residual solvent content and evolution properties.
Document ID
19880025923
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kranbuehl, D. E. (College of William and Mary Williamsburg, VA, United States)
Delos, S. E. (College of William and Mary Williamsburg, VA, United States)
Hoff, M. S. (College of William and Mary Williamsburg, VA, United States)
Weller, L. W. (College of William and Mary Williamsburg, VA, United States)
Haverty, P. D. (College of William and Mary Williamsburg, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Composite Materials
Meeting Information
Meeting: Advanced materials technology ''87
Location: Anaheim, CA
Country: United States
Start Date: April 6, 1987
End Date: April 9, 1987
Accession Number
88A13150
Funding Number(s)
CONTRACT_GRANT: NAG1-237
Distribution Limits
Public
Copyright
Other

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