What is Ultraviolet absorbent UV-328 CAS 25973-55-1?
Ultraviolet absorbent UV-328 CAS 25973-55-1 is a benzotriazole-type UV stabilizer that efficiently absorbs ultraviolet light and dissipates energy as heat, protecting materials from UV-induced degradation, discoloration, embrittlement, and loss of mechanical properties. It features excellent thermal stability and polymer compatibility, widely used to improve weather resistance and extend service life of plastics, coatings, and elastomers.
Specification
| Item |
Value |
| Appearance |
Off-White to Pale Yellow solid |
| Melting Point |
80-83°C |
| Boiling Point |
469.1±55.0 °C(Predicted) |
| Density |
1.08±0.1 g/cm3(Predicted) |
| Storage conditions |
-20°C Freezer |
Feature
- High UV Absorption: Efficiently absorbs UV radiation and converts energy to heat for durable protection.
- Good Solubility: Soluble in benzene, toluene, styrene, cyclohexane, MMA, ethyl acetate, ketones and other organic solvents.
- Thermal Stability: Stable at high processing temperatures, suitable for demanding production conditions.
- Excellent Compatibility: Well compatible with various polymers and resin systems.
Application
- Polyolefins: Ideal for polyethylene, polypropylene, and PVC materials.
- Engineering Plastics: Used in polyester, polystyrene, polyamide, polycarbonate and other polymers.
- Coatings & Elastomers: Applied in coatings, adhesives, and elastomers to enhance weather resistance.
- General Polymers: Suitable for most plastic and resin products requiring UV aging resistance.
Packaging
Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.
