TF-201S Small partical size Flame Retardant of ammonium polyphosphate for rubber
Introduction
TF-201S is an ammonium polyphosphate with ultra-fine particle size, low water solubility and high stability. It has the characteristics of low viscosity and high degree of polymerization, and is non-toxic and environmentally friendly.
As the "acid donor" of flame expansion coatings, TF-201S is especially suitable for fire-resistant coatings, and its flame-retardant principle is realized through the expansion mechanism.
At high temperature, TF-201S will decompose into polymeric phosphoric acid and ammonia. Polyphosphoric acid reacts with hydroxyl groups to form unstable phosphate esters. When exposed to flames, the fire-resistant coating will form carbonaceous foam, effectively blocking the impact of temperature rise on the substrate.
In terms of flame retardancy of rubber, the effect of TF-201S is very obvious. Customers have successfully applied TF-201S to the flame retardant treatment of conveyor belts with excellent results.
TF-201S is a white powder, suitable for many fields, such as coatings, adhesives, cables, etc.
Application
1. Used to prepare many kinds of high-efficiency intumescent coating, the flameproof treatment for wood, multistory building, ships, trains, cables, etc.
2. Used as the main flameproof additive for expanding-type flame retardant used in plastic, resin, rubber, etc.
3. Make into powder extinguishing agent to be used in large-area outfire for forest, oil field and coal field, etc.
4. In plastics(PP, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings.
5. Used for textile coatings.
Specification
|
Specification |
TF-201 |
TF-201S |
| Appearance |
White powder |
White powder |
| P2O5 (w/w) |
≥71% |
≥70% |
| Total Phosphorus(w/w) |
≥31% |
≥30% |
| N Content (w/w) |
≥14% |
≥13.5% |
| Decomposition Temperature (TGA, 99%) |
＞240℃ |
＞240℃ |
| Solubility (10% aq. , at 25ºC) |
＜0.50% |
＜0.70% |
| pH value ( 10% aq. At 25ºC ) |
5.5-7.5 |
5.5-7.5 |
| Viscosity (10% aq, at 25℃) |
＜10 mpa.s |
＜10 mpa.s |
| Moisture (w/w) |
＜0.3% |
＜0.3% |
| Average Partical size (D50) |
15~25µm |
9~12µm |
| Partical Size (D100) |
＜100µm |
＜40µm |
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