Characterization of cure of carbon/epoxy prepreg used in aerospace field
Carbon/epoxy 8552 prepreg is a thermoplastic toughened high-performance epoxy being used in the manufacture of advanced army material. Understanding the cure behavior of a thermosetting system is essential in the development and optimization of composite fabrication processes. The cure kinetics and...
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| Other Authors: | , , |
| Format: | article |
| Language: | eng |
| Published: |
2005
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| Subjects: | |
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300016 |
| Country: | Brazil |
| Oai: | oai:scielo:S1516-14392005000300016 |
| Summary: | Carbon/epoxy 8552 prepreg is a thermoplastic toughened high-performance epoxy being used in the manufacture of advanced army material. Understanding the cure behavior of a thermosetting system is essential in the development and optimization of composite fabrication processes. The cure kinetics and rheological behavior were evaluated using a differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA) and a rheometer. Values of the kinetic parameters were obtained from dynamic DSC scans using an nth order reaction model. Rheological measurements as a function of temperature and time were made for the prepreg system. The manufacturer's recommended cure cycle was evaluated and considered adequate to consolidated the studied system. |
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