Characterization of cure of carbon/epoxy prepreg used in aerospace field
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FapUNIFESP (SciELO)
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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
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Inglês
Citação
Materials Research, v. 8, n. 3, p. 317-322, 2005.
