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Titolo:
Estimation of the cross-linking ratio and glass transition temperature during curing of amine-cross-linked epoxies
Autore:
Legrand, M; Bellenger, V;
Indirizzi:
Ecde Natl Super Arts & Metiers, LTVP, F-75013 Paris, France Ecde Natl Super Arts & Metiers Paris France F-75013 -75013 Paris, France ENSAM, LCRMAO, Lille, France ENSAM Lille FranceENSAM, LCRMAO, Lille, France
Titolo Testata:
COMPOSITES SCIENCE AND TECHNOLOGY
fascicolo: 10, volume: 61, anno: 2001,
pagine: 1485 - 1489
SICI:
0266-3538(2001)61:10<1485:EOTCRA>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
CURE; OPTIMIZATION; ABSORPTION; RESINS; EXTENT;
Keywords:
polymer-matrix composites; curing; cross-linking ratio; glass transition temperature; differential scanning calorimetry (DSC);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Bellenger, V Ecde Natl Super Arts & Metiers, LTVP, 151 Blvd Hop, F-75013 Paris, France Ecde Natl Super Arts & Metiers 151 Blvd Hop Paris France F-75013
Citazione:
M. Legrand e V. Bellenger, "Estimation of the cross-linking ratio and glass transition temperature during curing of amine-cross-linked epoxies", COMP SCI T, 61(10), 2001, pp. 1485-1489

Abstract

An estimation tool developed for the cure optimisation of carbon/epoxy prepreg has been improved to determine during a cure cycle the variation in component temperature, the cross-linking ratio, and the glass-transition temperature of the matrix. The crosslinking ratio, alpha. is fitted by solving by finite differences the relationship of Sourour and Kamal. The required parameters are identified with the experimental curve alpha =f (cure time) for partially cured samples. We have first established the exponential equations between T-g and alpha, then determine the change in T-g with the cure time by using these exponential equations and the estimation curve of alpha. To validate this estimation tool. a different cure temperature cycle was applied to the same prepreg and the experimental values of T-g and alpha ofpartially cured samples were satisfactorily compared to the calculated values. (C), 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 05/06/20 alle ore 00:11:59