Triazole ultraviolet absorbers with enrichment performance for material surfaces protection from ultraviolet rays

Novel triazole ultraviolet absorbers (2HBTF) with surface enrichment performance were synthesized and characterized, showing effective protection for substrate surfaces from ultraviolet rays and environmentally friendly behaviour. The enrichment properties of 2HBTF in coating surfaces were detected by X-ray photoelectron spectroscopy, contact angle measurements and longitudinal sections. The results indicated that 2HBTF are mainly distributed in coating surfaces, showing hydrophobic films. Coatings with different UVAs were examined using artificial accelerated UV-ageing test, and the results show that the anti-ultraviolet light (UV) ageing property of coatings is affected by the distribution of these UVAs.