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Gain Charm International Limited
 
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Gain Charm International Limited
[China]
Address:
NO.9 Guomao garden,Haikou,Hainan Haikou Hainan 570105 China
Phone:
86-898-68681948
Contact name:
Wendy EN , Manager
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Gain Charm International Limited
 
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Ammonium Polyphosphate
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Ammonium Polyphosphate
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 Origin China

Ammonium polyphosphate(APP) is an excellent, high-efficiency and nontoxic inorganic flame retardant, used as the necessary flame-proof additive for all kinds of expanding-type flameproof paint and flame retardant products. The polymerization degree of our ammonium polyphosphate(APP-I) is higher than 50; the solubility in water is lower than 2g in every 100ml water.

Ammonium polyphosphate(Phase II) is a non-halogen flame retardant. It acts as flame retardant by 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 phosphateester. Following dehydration of the phosphateester, a carbon foam is built up on the surface and acts as an insulation layer

Related Keywords: APP , polyphosphate , retardant


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