Benzotriazole UV Absorber
2-(2'-Hydroxy-5'-methylphenyl)benzotriazole (UV-P) benzotriazole-class UV absorber that efficiently absorbs UV radiation between 300 and 380 nm through an intramolecular proton transfer mechanism. It is widely used in coatings, plastics, and adhesives to prevent photodegradation. Its high extinction coefficient and low volatility ensure durable UV protection across a variety of substrates.
مشخصات فنی
| purity | ≥ 99% |
| appearance | Off-white to yellow powder |
| melting point | 128 – 132°C |
| absorption max | 340 nm |
| loss on drying | ≤ 0.5% |
حوزههای کاربرد
- Exterior architectural coatings and varnishes
- Polyolefin and polystyrene films and sheets
- Automotive topcoats and clearcoats
- Adhesives for outdoor construction
- Textile and fiber UV protection
ویژگیهای محصول
- High UV absorption efficiency in 300–380 nm range
- Intramolecular proton transfer — photostable mechanism
- Good compatibility with a wide range of polymers
- Synergistic with HALS for comprehensive protection
- FDA approved for food contact polymers