Ultraviolet Absorber
High-Performance Ultraviolet Absorber for Enhanced Material Protection
Ultraviolet Absorbers are essential additives that protect materials from UV degradation. Our premium Ultraviolet Absorber offers superior performance for plastics, coatings, adhesives, and other polymer applications.
Product Specifications
- Chemical Name: Benzophenone-3 (BP-3)
- Appearance: White crystalline powder
- Molecular Weight: 228.24 g/mol
- Melting Point: 62-65°C
- UV Absorption Range: 280-350 nm
- Solubility: Soluble in most organic solvents
| Property | Value | Test Method |
|---|---|---|
| Purity | ≥99.5% | HPLC |
| Volatile Content | ≤0.5% | 105°C, 2hrs |
| Ash Content | ≤0.1% | 800°C, 4hrs |
| Thermal Stability | Stable up to 300°C | TGA |
Key Benefits of Our Ultraviolet Absorber
- Excellent UV absorption efficiency
- Long-term photostability
- Compatible with various polymer systems
- Low volatility and migration
- Non-yellowing properties
- FDA compliant for indirect food contact applications
Recommended Applications
| Industry | Typical Use | Recommended Loading |
|---|---|---|
| Plastics | PP, PE, PVC, PC, ABS | 0.1-0.5% |
| Coatings | Automotive, Industrial, Architectural | 0.5-2.0% |
| Adhesives | Pressure-sensitive, Structural | 0.2-1.0% |
| Textiles | Synthetic fibers, Outdoor fabrics | 0.5-1.5% |
Ultraviolet Absorber FAQ
Q: What is the working mechanism of Ultraviolet Absorber?
A: Ultraviolet Absorbers function by absorbing harmful UV radiation and converting it into harmless heat energy through a reversible photochemical process. The absorbed UV energy causes electronic excitation in the absorber molecule, which then returns to its ground state by releasing the energy as thermal energy rather than allowing it to degrade the host material.
Q: How does temperature affect Ultraviolet Absorber performance?
A: Our Ultraviolet Absorber maintains excellent stability across a wide temperature range (-40°C to 300°C). At higher temperatures, the efficiency may slightly decrease due to increased molecular mobility, but the product is specifically designed to minimize this effect through its superior thermal stability and low volatility characteristics.
Q: Can Ultraviolet Absorber be used in food contact applications?
A: Yes, our Ultraviolet Absorber is compliant with FDA regulations for indirect food contact applications (21 CFR 178.2010). It has been tested for migration and meets the stringent requirements for use in food packaging materials. However, specific approvals may be required depending on the final application and jurisdiction.
Storage and Handling
- Store in a cool, dry place below 30°C
- Keep container tightly closed when not in use
- Protect from direct sunlight and moisture
- Shelf life: 24 months from production date
Technical Support
Our technical team provides comprehensive support for Ultraviolet Absorber applications, including:
- Formulation assistance
- Compatibility testing
- Performance optimization
- Troubleshooting