Advantage:
- UV absorber UV-328 is a benzotriazole type ultraviolet absorber, possessing dual functions of light stabilizer and antioxidant. It can absorb ultraviolet rays ranging from 270 to 380nm, with the absorption peak at 343nm.
- It has the characteristics of good compatibility, low volatility, good washing resistance, and high absorption efficiency.
- It is suitable for low-temperature curing systems, industrial coatings, wood coatings, automotive coatings, polyethylene, polypropylene, polyurethane, polyphthalene, polyvinyl chloride, polystyrene, polyvinyl butyral, plexiglass, ABS resin, epoxy resin, unsaturated resin, and cellulose resin. The general dosage is 0.1-0.5%.
Applications:
Used in polyolefin (especially PE), polyester, styrene polymers, polyamide, PMMA, PC, elastomers, etc.
Package:
25KG cartons or drums
Storage and Transportation:
Keep container tightly closed and dry and storage in cool place.
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.
Technical Specifications
- Product Name: UV absorber UV-328
- CAS No.: 25973-55-1
- Chemical Name:2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
- Molecular Formula: C22H29N3O
- Molecular Weight: 351.5
- Other Name:Tinuvin 328,Songsorb 3280
- Appearance: Yellowish powder or cylindrical granule
Melting Point | 79-87℃ |
Purity | ≥99% |
Ash | ≤0.1% |
Loss On Drying | ≤0.3% |
Density | 1.08g/cm3 |
Transmittance | 460 nm≥96% 500 nm≥97% |
Recommended dosage | PS | PE | Polyester | PVC | PC |
0.2-0.5% | 0.2-0.4% | 0.3-0.5% | 0.2-0.5% | 0.15-0.3% |
