Authors:
C. Ramírez Universidad de A Coruńa Avda 19 de Febrero s/n 15405 Ferrol Spain Avda 19 de Febrero s/n 15405 Ferrol Spain

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M. Abad Universidad de A Coruńa Avda 19 de Febrero s/n 15405 Ferrol Spain Avda 19 de Febrero s/n 15405 Ferrol Spain

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L. Barral Universidad de A Coruńa Avda 19 de Febrero s/n 15405 Ferrol Spain Avda 19 de Febrero s/n 15405 Ferrol Spain

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J. Cano Universidad de A Coruńa Avda 19 de Febrero s/n 15405 Ferrol Spain Avda 19 de Febrero s/n 15405 Ferrol Spain

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F. Díez Universidad de A Coruńa Avda 19 de Febrero s/n 15405 Ferrol Spain Avda 19 de Febrero s/n 15405 Ferrol Spain

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J. López Universidad de A Coruńa Avda 19 de Febrero s/n 15405 Ferrol Spain Avda 19 de Febrero s/n 15405 Ferrol Spain

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Abstract  

Using differential scanning calorimetry (DSC) we have studied the physical aging of an epoxy resin based on the diglycidyl ether of bisphenol A (DGEBA) modified by two different contents of an acrylonitrile-butadiene-styrene (ABS) and cured with 1,3-bisaminomethylcyclohexane (1,3-BAC). Samples fully cured were annealed at temperature of 125C for periods of time of 72 and 120 h, to determine the process of physical aging. The apparent activation energy for the enthalpy relaxation, Dh*, is determined as the sample is heated at 10C min-1 following cooling at various rates through the glass transition region. DSC studies suggested that the presence of thermoplastic inhibits the process of relaxation.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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