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Titolo: Estimation of the crosslinking ratio and glass transition temperature during curing of aminecrosslinked epoxies
Autore: Legrand, M; Bellenger, V;
 Indirizzi:
 Ecde Natl Super Arts & Metiers, LTVP, F75013 Paris, France Ecde Natl Super Arts & Metiers Paris France F75013 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:
 02663538(2001)61:10<1485:EOTCRA>2.0.ZU;2T
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 CURE; OPTIMIZATION; ABSORPTION; RESINS; EXTENT;
 Keywords:
 polymermatrix composites; curing; crosslinking 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, F75013 Paris, France Ecde Natl Super Arts & Metiers 151 Blvd Hop Paris France F75013



 Citazione:
 M. Legrand e V. Bellenger, "Estimation of the crosslinking ratio and glass transition temperature during curing of aminecrosslinked epoxies", COMP SCI T, 61(10), 2001, pp. 14851489
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 crosslinking ratio, and the glasstransition 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 Tg and alpha, then determine the change in Tg 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 Tg and alpha ofpartially cured samples were satisfactorily compared to the calculated values. (C), 2001 Elsevier Science Ltd. All rights reserved.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/06/20 alle ore 00:11:59