Photostabilization of Nylon 66 in presence of acid blue dyes
| Autor: | Raj Pal Singh, Paragkumar Nathalal Thanki |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
chemistry.chemical_classification
Nylon 66 Polymers and Plastics digestive oral and skin physiology Concentration effect Lightfastness Polymer Condensed Matter Physics Photochemistry Anthraquinone Matrix (chemical analysis) chemistry.chemical_compound chemistry Mechanics of Materials Polymer chemistry Materials Chemistry Amine gas treating Phenols |
| Zdroj: | Polymer Degradation and Stability. 75:423-430 |
| ISSN: | 0141-3910 |
| Popis: | We have examined the effect of two different classes of photostabilizers, UV absorber and hindered amine light stabilizer (HALS) on Nylon 66 to prevent the photo-oxidation of the polymer matrix and colour fading of the dye. Acid blue dyes, UV absorber and HALS were observed to impart photostability to Nylon 66. UV absorber and HALS showed photostability directly proportional to their relative concentration in the polymer whereas in case of dye, 0.2% w/w concentration was observed as the optimum concentration. Loss of UV absorber with photo-irradiation time was found to be inversely proportional to the UV absorber concentration in the polymer whereas the fading of the dye was directly proportional to its concentration in the polymer. UV absorber imparted higher lightfastness to the dye as compared to HALS. No influence of the substitution on pendant phenyl ring of anthraquinone acid blue dyes was observed for their photostabilizing efficiency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect