Table of Contents
Introduction
Naugard® 445 is a high-efficiency non-discoloring aromatic amine antioxidant, heat stabilizer in various applications, including polyolefins, styrene, polyols, hot-melt adhesives, lubricants and polyamides. Naugard® 445 has excellent performance at processing temperatures and strong synergy with other types of antioxidants such as phenolic resins and phosphites.
Structure
Properties
| Appearance | White powder or granules |
|---|---|
| Molecular weight (g/mol) | 406 |
| Melting Point (℃) | 98-100 |
| Color – APHA | 20 |
| Specific Gravity at 55℃ | 1.14 |
| Flash Point (tcc/℃) | 277 |
Solubility
| Acetone | 40.8 | Cyclohexane | 3.5 |
| Heptane | 0.7 | Hexane | 0.7 |
| MEK | 41.2 | Methanol | 0.7 |
| Toluene | 32.8 | Water | Insoluble |
Advantages
- Excellent synergistic effect with antioxidants
- High melting point and good thermal stability
- Suitable for polyolefin, styrene, hot melt adhesive and polyamide system
