Melamine Cyanurate is a halogen-free flame retardant that can be used in thermoplastic urethanes (TPUs) for electrical wire coatings.


Properties of Melamine Cyanurate
Melamine Cyanurate is a salt comprised of Melamine and Cyanuric acid, which has unique physical properties:
- heat stability at 300º.
- held together by an extensive two-dimensional network of hydrogen bonds between Melamine and Cyanuric acid, which network forms layers such as graphite.
| Melamine Cyanurate | MC-4000 | MC-4500 | MC-6000 |
|---|---|---|---|
| Moisture Content (%) | <0.2 | <0.2 | <0.5 |
| Free Melamine (%) | <0.3 | <0.3 | <0.3 |
| Free Cyanuric Acid (%) | <0.2 | <0.2 | <0.2 |
| Particle Size D50 (μm) | <14 | <10 | <2 |
| Particle Size Dmax (μm) | <100 | <100 | <20 |
| pH | 4-6 | 5-6 | 4-6 |
| Bulk Density (ton/m3) | 0.2-0.5 | 0.2-0.5 | 0.1-0.3 |
Note: These are typical properties of Melamine Cyanurate (C3H6N6 – C3H3N3O3).
