The analysis of cured paint media and a study of the weathering of alkyd paints by FTi.r./PAS
1987; Elsevier BV; Volume: 28; Issue: 2 Linguagem: Inglês
10.1016/0032-3861(87)90413-7
ISSN1873-2291
Autores Tópico(s)Asphalt Pavement Performance Evaluation
ResumoFourier transform infra-red/photoacoustic spectroscopy (FTi.r./PAS) has been used to characterize alkyd, silicone alkyd, epoxy, acrylic and polyurethane paints. The convenient sampling arrangement of the photoacoustic technique, and the spectral accumulation and subtraction facilities of the FTi.r. spectrometer, permit the study of the artificial weathering of alkyd paints. These paints each contained one of a series of white pigments selected to provide different weathering properties. The changes observed included those due to variation in pigment concentration, loss of binder and binder oxidation. The rate of loss of aliphatic binder material was used as a measure of the resistance to weathering.
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