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FR-52MS
YINYUAN New Materials
White powder
> 280
PP, PE, TPE, etc.
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FR-52MS
UL94 V-0 Non-halogenated Flame Retardant for PP and PE
Product Description：
FR-52MS is a no-halogenated intumescent flame retardant based on piperazine pyrophosphates, suited for the polymer resins such as polypropylene (PP), polyethylene (PE), thermoplastic elastomer (TPE), and filled PP (filler, e.g. mineral, glass fibre/ GF). This product achieves the most efficient flame retardant grade such as UL94 (V0, 0.75mm; 5VA, 2.0mm), 70 ℃ × 168 hours immersion test (UL746C), glow wire testing (glow wire ignition temperature test/GWIT 750℃; glow wire flammability index/GWFI 960 ℃ ).
Specifications：
Characteristics | Unit | Target Value |
Appearance | white powder | |
Phosphorus | % (w/w) | > 18.5 |
Moisture/ Water | % (w/w) | < 0.4 |
Decomposition Temperature | ℃ | > 270 |
Applications：
FR-52MS is widely used in household electric control box, new energy batteries, Christmas lamp holder, wood plastic products, rail transit, pipes, and etc.
Recommended Dosage:
Resins | Homo-PP | Co-PP | PP+GF | HDPE | TPE |
Addition Amount, % (by wt.) | ≥ 19.0 | ≥ 24.0 | ≥ 22.0 | ≥ 26.0 | ≥ 28.0 |
UL94 Rating, (thickness, mm) | V-0 (1.50) | V-0 (0.75) | V-0 (1.50) | V-0 (1.50) | V-0 (2.00) |
Processing:
Pre-drying (e.g. 4h at 110℃) of FR-52MS is recommended, if even very low moisture content must be avoided.
FR-52MS and resin are mixed, care must be taken to ensure homogeneous dispersion of all compounds before extrusion. A certain degree of vacuum should be maintained during the twin-screw extrusion process.
Screens and a combination of weak shear screws are suggested to be used in the extrusion process. The optimum conditions for processing temperature of twin-screw should be determined in each individual case, the improved dispersion and plasticisation can be achieved by increasing the temperature.
FR-52MS may be affected by fillers or pigments (e.g. calcium carbonate, zinc oxide, phthalocyanine green), and its flame retardant effect may be reduced or even ineffective.
Packing and Handling:
Delivery Form:
White powder.
Packing:
FR-52MS is packed in paper-plastic bags with polyethylene inliner, 25kg per package.
Storage:
FR-52MS should be stored in a dry and cool place, avoid direct sunlight. Partially emptied containers should be carefully resealed after use. It is however usually not necessary to pre-drying the product before use.
