Crystal Type Flame Retardant Powder High Polymerization Degree
Description
A. Flame retardants / fire retardants are chemical compounds added
to paints and coatings to inhibit/retard the ignition/burning of
the paint. In marine applications where ships are repeatedly
painted to prevent corrosion, building up of paint layers increases
the risk of catching fire which can damage the vessel. Therefore it
becomes necessary to paint the vessel with fire retardant coatings.
Flame retardant coatings are also used in architectural
applications for painting schools, churches, homes etc. Flame
retardants can be broadly classified as inorganic, halogenated,
nitrogen based and phosphorous based.
FR004 is a kind of crystal type FR flame retardant, which has high
polymerization degree, but without encapsulated and activated. It
has high content of phosphorus & nitrogen, excellent thermal
stability, near-neutral and non-toxic smoke property. It takes
effect by char formation and intumescent mechanism.
B. FR004 can meet the requirements of different applications. It is
highly recommended to intumescent coating.
Characteristics:
Compared with other similar commercial products, at the same
dosage, FR004 has much lower viscosity in water, polyol suspension
of polyurethane and better stability for long term storage.
Compared with FR004, it has bigger particle size.
Technology Index:
| Test Item | Unit | Target value |
| Whiteness | —— | ≥88 |
| Density | g/cm³ | ～1.9 |
| Bulk Density | g/L | ～700 |
| Polymerization Degree | —— | ≥1000 |
| pH Value (25℃,10% Suspension) | —— | 5.5～7.5 |
| Viscosity (25℃,10% Suspension) | mPa.s | ≤50 |
| Decomposition Temp. | ℃ | ≥260 |
| Phosphorus | % (w/w) | 31.0～32.0 |
| Nitrogen | % (w/w) | 14.0～15.0 |
| Water Solubility | % (w/w) | ≤0.5 |
| Average Particle Size (D50) | μm | ～15 |
| Residue on Sieve | % (w/w) | 0 (40 meshes) |
| ＜0.001% (60 meshes) |
| ＜0.03% (150 meshes) |
| Acid Number | mgKOH/g | ≤1.0 |
| Water/Moisture | % (w/w) | ≤0.25 |
| Toxicity And Environmental Hazard | —— | Not Detected |
