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Melamine Cyanurate (MCA)

Melamine Cyanurate (MCA)

CAS No.: 37640-57-6

Molecular Formula: C6H9N9O3

Properties:

Melamine cyanurate, also known as melamine cyanurate, is a nitrogen-containing halogen-free environmentally friendly flame retardant, appearing as a white fine powder. This product is economical, highly efficient, with excellent electrical and mechanical properties, no discoloration, low smoke, and low corrosion. At the same time, it is safe for users, compatible with the environment, and has good thermal stability, making it very suitable for material processing.

Flame retardant principle:

Melamine cyanurate (MCA) sublimates and absorbs heat, lowering the surface temperature of the polymer and cutting off air, accelerating melt dripping to remove heat and combustibles, altering the thermal-oxidative degradation pathway to rapidly carbonize into non-flammable carbonaceous material. These carbon substances swell and foam, covering the substrate surface, forming an insulating layer that isolates contact with air and prevents the escape of combustibles, effectively preventing continuous combustion. Meanwhile, the non-flammable gases produced from decomposition cause the material to expand into a foam layer, greatly reducing thermal conductivity and facilitating self-extinguishing upon removal from the flame.

Features:
1. Superior flame retardant performance;
2. Low coloring, can be formulated into various colors;
3. Excellent electrical properties, especially suitable for the electrical and electronics industry;
4. Extremely low application cost, superior electrical performance, mechanical properties, and coloring properties, among other advantages;
5. This product is environmentally friendly and meets European green environmental requirements.

Uses:

Widely used as a flame retardant in thermoplastic and thermosetting resins, rubber products, etc., especially suitable for pure nylon 6 and nylon 66. It can easily achieve UL 94 V-0 flame retardancy.

Technical Specifications:

Cyanuric acid melamine % >99.5
Residual cyanuric acid (%) ≤0.2
Residual melamine (%) ≤0.001
Volatile matter (%) ≤0.2
pH value 5-7
Specific gravity (g/cm³) 1.7
Bulk density (g/cm³) 0.3-0.4
Particle size (μm): D50  2
Packaging 20 kg composite bag