Characterisation of cured alkyd paint binders using swollen state 13C-NMR

✍ Scribed by G.L. Marshall; J.A. Lander

• Book ID: 103072124
• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 511 KB
• Volume: 21
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(85)90182-x

✦ Synopsis

Swollen state ~3C-NMR can be used to characterise commonly encountered air-dried alkyd paint binders. Deuterochloroform is the solvent of choice and a conventional Fourier transform spectrometer can be used. The polyol and aromatic acid present in the binder can be readily identified and some useful information on the drying oil fatty acids can be obtained. The study of partially cured materials leads to information concerning curing mechanisms. Modifiers present in the alkyds such as silicones, polyurethanes and styrenic materials can readily be identified. The presence of titanium dioxide pigment in the cured binder does not greatly alter the quality of the spectra obtained thus allowing full characterisation of the resin used.