Carregant...
Carregant...

Vés al contingut (premeu Retorn)

Effect of previous thermal history on physical aging of amorphous poly (ethylene terephthalate)

Autor
Cortes, M.; Montserrat, S.
Tipus d'activitat
Article en revista
Revista
Makromolekulare Chemie. Macromolecular Symposia
Data de publicació
1989-01-01
Volum
27
Número
1
Pàgina inicial
279
Pàgina final
287
DOI
https://doi.org/10.1002/masy.19890270118 Obrir en finestra nova
URL
http://onlinelibrary.wiley.com/doi/10.1002/masy.19890270118/full Obrir en finestra nova
Resum
Physical aging of amorphous PET, at aging temperatures (Ta) of 40 and 60°C and different aging times (ta), has been studied by DSC using two kinds of samples with different thermal history: Liquid-Nitrogen-Quenched samples (LNQ) and DSC cooled samples at a controlled cooling rate of 60 K/min (CC). At Ta = 40°C, a sub-Tg peak appears in LNQ samples but is not clearly observed in the CC samples. At Tg = 60°C, a superposed peak to Tg is observed in both kinds of samples. This different behaviour...
Grup de recerca
POLTEPO - Polímers Termoestables Epoxídics

Participants