Characterization of cure of carbon/epoxy prepreg used in aerospace field

Materials Research

Michelle Leali Costa¹  Edson Cocchieri Botelho¹  Jane Maria Faulstich De Paiva¹  Mirabel Cerqueira Rezende¹ 

[1] ,Instituto de Aeronáutica e Espaço AMR Materials DivisionSão José dos Campos SP ,Brazil

关键词: carbon/epoxy prepreg;    kinetic of cure;    DSC;    rheology;    DMA;   

DOI  :  10.1590/S1516-14392005000300016

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY   
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