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Ammonium Polyphosphate Flame Retardant
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Intumescent Flame Retardant
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Halogen Free Flame Retardant
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Fabric Flame Retardant
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APP Ammonium Polyphosphate
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Wood Flame Retardant
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PP Flame Retardant
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Additives For Adhesives And Sealants
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Water Based Fire Retardant
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Paper Fire Retardant
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PU Flame Retardant
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Halogen Free Fire Retardants
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AP422 CROS484 Equal Type
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Environmentally Friendly Halogen Free Fire Retardants For Intumescent Coating
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xProduct Details
| Product Name | Environmentally Friendly Halogen Free Fire Retardants For Intumescent Coating | Appearance | White Powder |
|---|---|---|---|
| Base | N And P Base | Environmentally | Friendly |
| Solubility | ＜0.45% | PH Value | 5.5-7.5 |
| Average Partical Size (D50) | 15-25UM | Application | Intumscent Coating |
| Performance Characteristics | Avirulent Insipidity | Storage | In Dry And Cool Plac |
| Shelf Life | 1 Year | ||
| Highlight | Intumescent Coating Halogen Free Fire Retardants,68333-79-9 Halogen Free Fire Retardants,ISO9001 Intumescent Flame Retardant |
||
Product Description
Environmentally Friendly Halogen Free Fire Retardants For Intumescent Coating
APP(ammonium polyphosphate) is mainly polymerized from monomeric diphosphorus pentaoxide(P2O5) and diammonium hydrogenorthophosphate(DAP)
APP is flame retardant using expansion mechanism.
APP decomposes ammonia gas and polyphosphoric acid at 275 ℃. Ammonia dilutes the oxygen concentration and at the same time expands and loosens the carbon layer to isolate heat.
APP is halogen free, environmental friendly.
Molecular formula : (NH4PO3)n n>1000
CAS No.: 68333-79-9
EINECS No.: 269-789-9
HS CODE: 2835.3990
Model No.: TF-201
Ammonium polyphosphate (Phase II) is a non-halogen flame retardant. It acts as a flame retardant by the intumescence mechanism. When APP-II is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia. The polyphosphoric acid reacts with hydroxyl groups to form a nonstable phosphate ester. Following dehydration of the phosphate ester, a carbon foam is built upon the surface and acts as an insulation layer.
Specification principles
specifications of thickness of intumesncent vary depending on the substrate and steel profile.
- Factors influencing the specification
- Type of section(open/closed/cellular profile)
- Massivity of the steel(Hp/a)
- Exposure (i.e 3 sided ,4 sided exposure)
- Fire Rating FR(30/60/90/120 min)
- Critical temperature(CT)
Index
| Appearance | White powder |
| P2O5 (w/w) | ≥71% |
| N Content (w/w) | ≥14% |
| Decomposition Temperature (TGA, 99%) | ＞275℃ |
| Solubility (10% aq. , at 25ºC) | ＜0.45% |
| pH value ( 10% aq. At 25ºC ) | 5.5-7.5 |
| Viscosity (10% aq, at 25℃) | ＜20 mpa.s |
| Moisture (w/w) | ＜0.25% |
| Average Partical size (D50) | 15~25µm |
Basic concept of intumescent
- Intumenscent is a substance which swells as a result of heat exposure,thus increasing in volume,and decreasing in density.
- Expansion is nonrmally around 40-60 times that applied DFT.
- Char of low thermal conductivity that reduces heat transfer to substrate.
- Thermal insulation of substrate.
Applications:
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 the forest, oil field, and coalfield, etc.
4. In plastics(PP, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings.
5. used for textile coatings.
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| FAQ |
| Q1. What is your terms of payment? A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance. Q2. How about your delivery time? A: Generally, it will take 1 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. Q3. Can I have a sample order? A. Yes, we can provide free sample for quality checking, but the courier charge should be paid by your side. Q4. Do you test all your goods before delivery? A: Yes, we have 100% test before delivery. |
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