Accelerated aging versus realistic aging in aerospace composite materials. I. The chemistry of thermal aging in a low-temperature-cure epoxy composite

Sie sind hier: Homepage > Suche

Accelerated aging versus realistic aging in aerospace composite materials. I. The chemistry of thermal aging in a low-temperature-cure epoxy composite

Dao, B. / Hodgkin, J. / Krstina, J. / Mardel, J. / Tian, W.

Samples of an aerospace-grade epoxy composite (M20/IM7) are subject to long-term (propor to 1 year) thermal aging at temperatures of 70 C, 120 C, 170 C, and 200 C (in air) and the changes to the chemical and physicochemical structure of the composite are analyzed by a range of different techniques, including gravimetric analysis, FTIR, DSC, and DMA to compare the effects of different severities of degradation treatment. The results show that at the lower temperatures, the oxidative degradation changes are very selective for chemical defect groups, particularly near the sample surfaces. However, at the higher temperatures, combinations of further cure reactions and generalized oxidative degradation changes (again from the surface inwards) make for a highly complex ageing pattern for this particular composite material.

Zugriff

Zugriff über TIB

Verfügbarkeit in meiner Bibliothek prüfen

Bestellung bei Subito €

Exportieren, teilen und zitieren

Dokumentinformationen

Titel :

Accelerated aging versus realistic aging in aerospace composite materials. I. The chemistry of thermal aging in a low-temperature-cure epoxy composite

Beteiligte:

Dao, B. (Autor:in) / Hodgkin, J. (Autor:in) / Krstina, J. (Autor:in) / Mardel, J. (Autor:in) / Tian, W. (Autor:in)

Erschienen in:

Journal of Applied Polymer Science ; 102 , 5 ; 4291-4303

Erscheinungsdatum :

2006

Format / Umfang :

13 Seiten, 22 Bilder, 1 Tabelle, 29 Quellen

ISSN :

0021-8995

DOI :

https://doi.org/10.1002/app.24862