Ammonium polyphosphate (APP) n'ime ihe mkpuchi intumescent

N'ịgbasa usoro ihe mkpuchi, ammonium polyphosphate (APP) na-arụ ọrụ dị mkpa n'ime ka iguzogide ọkụ dịkwuo mma.
A na-ejikarị APP eme ihe dị ka ihe na-egbochi ire ọkụ n'ịgbasa usoro ihe mkpuchi. Mgbe a na-etinye okpomọkụ dị elu n'oge ọkụ, APP na-agbanwe kemịkalụ dị mgbagwoju anya. Okpomọkụ ahụ na-akpali ntọhapụ nke phosphoric acid, nke na-emeghachi omume na radicals free nke usoro ọkụ na-emepụta. Mmeghachi omume kemịkalụ a na-akwalite ịmepụta oyi akwa char dị oke. Oyi akwa char a na-arụ ọrụ dị ka ihe mgbochi mkpuchi, na-egbochi mbufe okpomọkụ na oxygen na ihe ndị dị n'okpuru, si otú a na-egbochi mgbasa nke ọkụ.
Ọzọkwa, APP na-arụ ọrụ dị ka ihe na-egbochi ọkụ na-enwu enwu n'ịgbasa usoro ihe mkpuchi. Mgbe a na-ekpughere ya n'ọkụ, ihe mgbakwunye intumescent, gụnyere APP, na-amalite ịza, na-agba ọkụ, ma na-emepụta oyi akwa mkpuchi nchebe. Oyi akwa a na-enyere aka belata mbufe okpomọkụ na mwepụta nke gas ndị na-anaghị ere ọkụ, si otú a na-egbochi mgbasa nke ọkụ nke ọma.
Ọzọkwa, ọnụnọ nke APP n'ime ihe mkpuchi na-eme ka ike ha zuru oke na-eguzogide ọkụ ma na-emezu ụkpụrụ nchekwa ọkụ siri ike. Char nke e guzobere site na mmeghachi omume APP na-ekpuchi ihe ndị dị n'okpuru nke ọma, na-enye oge ọzọ maka nzaghachi mberede na mwepụ ma ọ bụrụ na ọkụ emee.
Na mmechi, n'ịgbasa usoro ihe mkpuchi, itinye ammonium polyphosphate na-eme ka iguzogide ọkụ dịkwuo mma site n'ịkwalite nhazi nke oyi akwa char, ibelata nnyefe okpomọkụ na oxygen, ma na-enye ihe mgbochi dị irè megide mgbasa nke ọkụ. Nke a na-enyere aka na nchekwa ọkụ na arụmọrụ nke ịgbasa ngwaahịa ihe mkpuchi n'ọtụtụ ngwa.