GREATBAY XZ-MCA

Melamine Cyanurate (MCA)  
 

Chemical name: Melamine Cyanurate
Brand name: GreatBay XZ-MCA
Equivalent grade: Melapur MC25
Formula:C6H9N9O3
Molecular Weight: 255.2
CAS NO.: 37640-57-6
Physical appearance: fine, white, crystalline powder, nontoxic, odourless ; in dissolvable in water and most organic solvents.
Use: Melamine Cyanurate is a halogen-free flame retardant for polyamide. Melamine Cyanurate has established itself as the flame retardant to achieve UL 94 V-0 especially for polyamide 6 and 6,6. Addition of MCA gives PA6(66) good mechanical and electrical properties. Being halogen free also results in significant advantages in terms of fire safety, i.e. lower smoke density, lower smoke-toxicity and less corrosion.
Quality Standard: The above information is just for reference, customers shall adjust the formulations according to actual requirements.

MCA
%
≥99.5
Residue cyanuric acid
%
≤0.2
Residue melamine
%
≤0.3
Whiteness
---
≥96
Dry Weight Loss
%
≤0.2
PH value
---
5-7
Specific gravity
g/cm3
1.7
Bulk density
g/cm3
0.3-0.4
Water solubility
g/100ml water
0.002(20oC)

Particle size:
MCA:     D50 -2µm;       D98 -8µm
MC15:  D50 -2.5µm;    D98 -15µm
MC25:  D50 -4µm;      D98 -25µm
MC50:  D50-4µm;      D98-50µm
Pakage: 20kg paper bags or according to customer request.

Use in the nylon:
1. Recommended dosage (wt%)

Base Material
PA6
88-90%
PA66
90-92%
Flame retardant
MCA
12-10%
MCA
8-10%

2.Extrusion data

Material temperatureoC
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
PA6
235
240
240
240
240
245
245
245
245
PA66
250
260
260
260
260
260
260
265
265
Section 8 is vaccum space; section 9 is the outlet

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