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AP422 CROS484 Equal Type
TF-PU501 ISO Rigid PU Foam APP Flame Retardant

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xAppearance | Grey Powder | Usage | Flame Retardant |
---|---|---|---|
Application | Rigid PU Foam | Type | Intumescent |
Base | Phosphorus-nitrogen | ||
Highlight | rigid PU foam APP Flame Retardant,ISO APP Flame Retardant,TF-PU501 APP Flame Retardant |
PU Flame Retardant APP Flame Retardant Halogen Free Fire Retardant For PU Wheel And Roller
Rigid Polyurethane foam (RPUF) is recognized as the best thermal insulation material in the world , but the unflame-retardant polyurethane foam often causes fire .
Rigid Polyurethane Foam has excellent physical and mechanical properties , electrical properties , acoustic properties and chemical corrosion resistance , and has a strong adhesion with a variety of materials . As a result , it is widely used as thermal insulation materials for chemical pipes , refrigeration equipment , transportation equipment and buildings . However , the oxygen index of unflame-retardant polyurethane hard foam is generally lower than 19 , which belongs to flammable materials and releases HCN , CO and other toxic gases in the combustion process .
Ammonium polyphosphate (TF-PU501) is a halogen free flame retardant which can be used for RPUF.
Product description:: TF-PU501 is solid composite halogen-free phosphorus-nitrogen containing intumescent flame retardant, it acts both in the condensed phase and the gas phase.
Technical Data Sheet / Specification :
Specification | TF-PU501 |
Appearance | Gray powder |
P2O5 content (w/w) | ≥47% |
N content (w/w) | ≥8% |
pH value (10% aqueous suspension, at 25ºC) | 6.5-7.5 |
Moisture (w/w) | ≤0.5% |
Characteristics :
1. Gray powder, expands when heated, efficient in smoke suppression.
2. Excellent water resistance, not easy to precipitate, high flame retardant efficiency.
3. Halogen-free and none heavy metal ions. pH value is neutral, safe and stable during production and use, good compatibleness, not to react with other flame retardant and auxiliary.
Application: TF-PU501 is used solely in flameproof treatment for rigid polyurethane foam. UL94-V0 and GB / T 8624-2012 B1 can be achieved when addition volume of APP more than 15% . B2 -9%.
Fire Retardancy and Mechanical Property Experiment for FR RPUF
(TF- PU501)
Fire Retardancy:
TF-PU501 ( 9%) | Sample | |||||
1 | 2 | 3 | 4 | 5 | 6 | |
Average self-extinguish time(s) | 4 | 3 | 2 | 4 | 5 | 3 |
Flame height(cm) | 15 | 17 | 13 | 12 | 13 | 15 |
SDR | 83 | 74 | 73 | 88 | 81 | 93 |
OI | 28 | 27 | 28 | 28 | 29 | 27 |
Flammability | B2 |
Mechanical Property (test at addition volume 22%) :
Formulation | TF-PU501 | Polyether | Rough MDI | Foamer | Foam stabilizer | Catalyzer |
Addition(g) | 22 | 50 | 65 | 8 | 1 | 1 |
Compression strength(10%)(MPa) | 0.15 - 0.25 | |||||
Tensile strength(MPa) | 8 - 10 | |||||
Foam density (Kg/m3) | 70 - 100 |
FR RPUF is widely used for insulation board , sound insulation board, insulation pipe sleeve , elevator wheel , roller , shopping wheel , etc.