Interactions between light stabilizers and pigment particles in polymeric coatings
| Autor: | B. H. Campbell, F. F. Andrawes, G. Haacke, E. Longordo |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Materials science
Hindered amine light stabilizers Infrared General Chemical Engineering Organic Chemistry Xylene Chemical interaction Surfaces Coatings and Films chemistry.chemical_compound Pigment Adsorption Chemical engineering chemistry visual_art Materials Chemistry visual_art.visual_art_medium Organic chemistry Molecule Stabilizer (chemistry) |
| Zdroj: | Progress in Organic Coatings. 34:75-83 |
| ISSN: | 0300-9440 |
| DOI: | 10.1016/s0300-9440(97)00119-7 |
| Popis: | Adsorption experiments have been carried out to understand the interactions responsible for UV light stabilizer adsorption on pigments in coatings. Light stabilizer adsorption on various pigments was studied in xylene solutions to eliminate potential interference from the cure process. Adsorption isotherms were determined for UV absorbers and hindered amine light stabilizers (HALS) compounds. Infrared spectral analysis revealed that chemical interactions at the pigment surface are responsible for the observed effects. In some cases the chemical surface interactions are likely to prevent the adsorbed molecules from functioning as light stabilizers. |
| Databáze: | OpenAIRE |
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