The interaction of organic molecules with carbon fibre surfaces: a ToF-SIMS study
| Autor: | M.-L. Abel, P.E. Vickers, John F. Watts, M.E. Turner |
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| Rok vydání: | 1998 |
| Předmět: |
Langmuir
Diglycidyl ether Materials science technology industry and agriculture Thermosetting polymer Epoxy Secondary ion mass spectrometry chemistry.chemical_compound Adsorption chemistry Mechanics of Materials visual_art Ceramics and Composites visual_art.visual_art_medium Molecule Amine gas treating Composite material |
| Zdroj: | Composites Part A: Applied Science and Manufacturing. 29:1291-1304 |
| ISSN: | 1359-835X |
| DOI: | 10.1016/s1359-835x(98)00041-4 |
| Popis: | The adsorption of three organic molecules, representative of thermosetting (amine curing agent and diglycidyl ether of bisphenol-A (DGEBA)) and thermoplastic (polymethylmethacrylate (PMMA)) matrices used in the fabrication of CFRP, on untreated and electrochemically oxidised carbon fibres has been investigated. It is found that adsorption of these molecules on both untreated and electrochemically oxidised carbon fibres is of the Langmuir type. A rather unexpected result is that the uptake of both the amine and PMMA molecules appears to be rather insensitive to surface pre-treatment. The DGEBA molecules, on the other hand, respond in the expected manner to surface treatment with the level of adsorption increasing markedly from untreated to treated fibres. This observation is interpreted in terms of the type of bonding sites present on the surface of untreated and treated fibres: the electrochemical treatment introduces sites that are particularly attractive to the DGEBA molecules, but are equivalent, as far as the amine and PMMA species are concerned, to those entities that exist on the untreated fibre surface. These observations are considered in the light of potential interphase formation in CFRP. |
| Databáze: | OpenAIRE |
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