Photo-chemical degradation study of an epoxy material by X-ray analysis

Photo-chemical degradation of an epoxy resin (DGEBA) cross-linked with methyltetrahydrophthalic anhydride (MTHPA) was studied using electron beam X-ray microanalysis. The evolution of O K α /C K α ratio of the K α ray intensities of oxygen and carbon allowed us to detect the organic matrix’s chemica...

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Bibliographic Details
Published in:Polymer degradation and stability 1998-01, Vol.62 (2), p.367-371
Main Authors: Monney, L, Rouge, N, Dubois, C, Chambaudet, A
Format: Article
Language:English
Subjects:
Aging
Applied sciences
Crosslinking and degradation
Exact sciences and technology
Glass fiber reinforced plastics
Glass-epoxy composites
Irradiation
Matrices (base phases)
Oxidation rate
Photodegradation
Photosensitivity
Physicochemistry of polymers
Polymers and radiations
Surface structure
X ray analysis
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Summary:Photo-chemical degradation of an epoxy resin (DGEBA) cross-linked with methyltetrahydrophthalic anhydride (MTHPA) was studied using electron beam X-ray microanalysis. The evolution of O K α /C K α ratio of the K α ray intensities of oxygen and carbon allowed us to detect the organic matrix’s chemical modifications during photo-ageing of the irradiated surface. Aside from the fact that the thickness of the photo-oxidized layer can be estimated, the evolution of the O K α /C K α ratio is expressed as that of the oxidation of the matrix and confirms the hypothesis that the photo-oxidation layer advances at a constant rate, after an establishment period.
ISSN:0141-3910
1873-2321
DOI:10.1016/S0141-3910(98)00023-8