Melamine is a nitrogen-based flame retardant that functions via an endothermic reaction and gas release mechanism. Upon heating, it decomposes and releases nitrogen, diluting flammable gases and contributing to the formation of a stable char layer. Melamine is also widely used as a crosslinking agent in resins, laminates, coatings, and molding compounds.
| Property | Typical Value |
|---|---|
| Chemical Name | 1,3,5-Triazine-2,4,6-triamine |
| CAS No. | 108-78-1 |
| Appearance | White crystalline powder |
| Nitrogen Content | ≥ 66% |
| Melting Point | 345 °C |
| Decomposition Temp. | > 350 °C |
| Moisture | < 0.1% |
| pH (10% solution) | 7.5 – 9.5 |
| Customer Concern | Melamine Solution |
|---|---|
| High smoke levels from conventional FRs | Melamine helps reduce smoke and toxicity |
| Need for halogen-free formulations | Melamine is a halogen-free nitrogen donor |
| System compatibility with intumescent blends | Synergizes with APP and other FR components |
| Thermal endurance in processing | Stable above 300 °C, suitable for molding |
Q1: Can Melamine be used alone as a flame retardant?
It’s best used in combination with other agents like APP to form efficient intumescent systems.
Q2: Is it safe for indoor applications?
Yes, melamine is widely used in furniture, panels, and flooring with low emissions.
Q3: Does melamine affect transparency?
It’s typically used in opaque systems such as foams, wood composites, or laminates.
