Characterization of cure of carbon/epoxy prepreg used in aerospace field
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Data
2005-07-01
Autores
Costa, Michelle Leali
Botelho, Edson Cocchieri [UNESP]
De Paiva, Jane Maria Faulstich
Rezende, Mirabel Cerqueira
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Resumo
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.
Descrição
Palavras-chave
Carbon/epoxy prepreg, DMA, DSC, Kinetic of cure, Rheology, Aerospace engineering, Carbon, Curing, Differential scanning calorimetry, Dynamic mechanical analysis, Mathematical models, Optimization, Rheometers, Thermal effects, Thermosets, Carbon/epoxy prepegs, Thermosetting systems, Epoxy resins
Como citar
Materials Research, v. 8, n. 3, p. 317-322, 2005.