Trade Name: Melamine cyanurate MCA
Molecular Formula: C6H9N9O3
CAS NO.: 37640-57-6
MCA is a kind of high effective nitrogen halogen free flame retardant. It is very stable when the temperature is lower than 300℃. However, sublimation will happen when the temperature is above 350℃. The decomposition temperature of MCA is 440℃～
450℃. The flame retardancy takes effect through absorbing heat and releasing
incombustible gases after sublimation.
Tech Specification
| Item | MC-15 | MC-25 | MC-50 | MC-G |
| Appearance | White powder | White powder | White powder | White granule |
| MCA,% | ≥99.5 | ≥99.5 | ≥99.5 | ≥99.5 |
| Residue cyanuric acid,% | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 |
| Residue melamine,% | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
| Decomposition temperature | ≥ 350 | ≥ 350 | ≥ 350 | ≥ 350 |
| Whiteness | ≥ 96 | ≥ 96 | ≥ 96 | ≥ 96 |
| Moisture,% | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 |
| PH value | 5.0-7.0 | 5.0-7.0 | 5.0-7.0 | 5.0-7.0 |
| Density, g/cm3 | 1.60-1.70 | 1.60-1.70 | 1.60-1.70 | -- |
| Bulk density, g/cm3 | 0.30-0.40 | 0.30-0.40 | 0.30-0.40 | -- |
| Particle size D50, um D98, um | ≤2.5 ≤15.0 | ≤4.0 ≤25.0 | ≤4.0 ≤50.0 | -- |
Application
MCA is especially suitable for PA6 and PA66 without filler. PA6 and PA66 with MCA
can pass the tests of UL 94 V-0 (0.75mm), GWFI 960℃ and GWIT 750℃.
It can be used as flame retardant in wires and cables made from TPU, pipe made from polyamide and epoxy sealant, etc. It can meet high surface requirement of wires and cables.
Recommended usage in PA66/PA6
| Type | Dosage in PA6 | Dosage in PA66 | Flame Retardancy UL 94 |
| Un-reinforced system | 10% -14 % | 8%-12% | UL 94 V-0 （1.5mm, 3.0mm | GWFI 960℃ ） （3.0mm） |
| Mineral filling system | 13%-15 % | 13%-15% | UL 94 V-2 （1.5mm, 3.0mm | GWFI 960℃ ） （3.0mm） |
| 10%-15% glass fiber reinforced system | 11%-16 % | 10%-15% | UL 94 V-2 （1.5mm, 3.0mm | GWFI 960℃ ） （3.0mm） |
Recommended usage in TPU/TPE & EP
| Substrate | Usage | Flame Retradancy |
| TPU/TPE | MC15/MC25/MC-G + Organic hypophosphite/phosphonate | VW-1 |
| EP | MC15/MC25/MC-G + APP801H + ATH | UL 94 V-0 (3.0 mm) |
Package & Storage
20kg paper bag with PE inner bag.
Should be stored in dry and ventilatedstoreroom. This product is non-dangerous.For other operations, please refer to SDS instructions provided by the manufacturer.
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