Ammonium Polyphosphate Phase II(APP-II)
Product Description
It can be used in expanding fireproof material, such as polyurethane, UP resin and epoxy resin. It can also be used in the retardant of fiber, wood and plastic materials. Due to its high molecular weight(n>1000) and good heat stability, APP can be used as main ingredient of expanding retardant thermoplastic. Especially used in the PP achieving UL94-V0 for electronic unit.
Product Specification
| Items |
Standard Value |
Test Results |
| Appearance |
Powder |
Powder |
| Available P2O5 |
58.0%min |
58.3% |
| Total Nitrogen (N) |
18.0%min |
18.2% |
| Polymerization Rate |
65.0%min |
72.5% |
| Degree of Polymerization |
2-5 |
3.4 |
| Solubility(in 100mL water) |
175g min |
| Water Insoluble |
0.1% |
Not detected |
| Moisture(H2O) |
0.5% max |
0.31% |
| pH Value |
6-8 |
7.2 |
| As |
30ppm max |
18ppm |
| Pb |
10ppm max |
3ppm |
| Cd |
5ppm max |
0.2ppm |
| Cr |
20ppm max |
11ppm |
| Hg |
0.1ppm max |
0.01ppm |
| Particle Size (beneath 20 mesh) |
90.0%min |
90.00% |
Product Advantage
(1)High degree of polymerization up to 1300, excellent performance of fire protection in intumescent systems, has more wide range of application than low polymerization APP.
(2)Initial decomposition temperature 280 degree Celsius, action time earlier than other common ammonium polyphosphate
(3)Low water solubility, high polymerizaiton and intial decompostion temperature make our ammonium polyphosphate good compatibility.
Product Application
Ammonium Polyphosate can be used in top-grade fire-retardant coating, fiberglass and engineering plastic, such as PE, PP, PU, polyester and nylon.
(1) With 15-20% APP in the adhesive and sealing agent, the good firing resistance is shown.
(2) For PU, APP is a very suitable preventing form buring dope without halogen.
(3) It is also applicated in hot solidifying resin of epoxy resin or unsaturated resin, etc.
Product Packing
Package:Internal plastic with knitted exterior covered with film, with the net weight of 25kg.
Transportation:The product is not dangerous one, which should be protected from damp, rainfall and package damage in transportation.
Storage:At dry warehouse with good ventilation.
Contact Detalis:
Vanessa Zhao
Senior Business Manager
SHANDONG YURUN CHEMICAL CO.,LTD
Add: Yurun Building,Weifang City,Shandong Province,P.R.China.
Audited Supplier 
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