Electrical sensing of shelf-cure properties of polymeric prepreg materials

Electrical sensing of shelf-cure properties of polymeric prepreg materials

Most polymeric thermoset materials change (cure) slowly as they lie in storage; a prime example of this is composite prepreg materials. These changes are generally vitrification, and are not readily observable using some of the standard cure‐monitoring methods, such as DSC and FTIR, which sense main...

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Veröffentlicht in:Journal of applied polymer science 1997-04, Vol.64 (2), p.337-342
Hauptverfasser: Lunt, Barry M., Merrell, R. Scott, Strong, A. Brent, Cox, Mark R.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
gelation
Polymer industry, paints, wood
prepregs
shelf cure
Technology of polymers
vitrification
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Beschreibung
Zusammenfassung:Most polymeric thermoset materials change (cure) slowly as they lie in storage; a prime example of this is composite prepreg materials. These changes are generally vitrification, and are not readily observable using some of the standard cure‐monitoring methods, such as DSC and FTIR, which sense mainly the gelation process. Evidence of this observation is presented, along with the successful results of an effort to monitor this shelf‐cure process using a simplified resistivity meter. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 337–342, 1997
ISSN:0021-8995
1097-4628
DOI:10.1002/(SICI)1097-4628(19970411)64:2<337::AID-APP14>3.0.CO;2-Y