Ammonium polyphosphate (APP) ka har'a li-sealant tse kenang ka hare ho kutu

Ha ho atolosoa metsoako ea sealant, ammonium polyphosphate (APP) e bapala karolo ea bohlokoa ho ntlafatseng khanyetso ea mollo.
APP e atisa ho sebediswa e le ntho e thibelang malakabe ho atoloseng di-sealant formulations. Ha e le maemong a mocheso o phahameng nakong ya mollo, APP e fetoha ka tsela e rarahaneng ya dikhemikhale. Mocheso o baka ho lokollwa ha phosphoric acid, e arabelang le di-free radical tse hlahiswang ke tshebetso ya ho tuka. Karabelo ena ya dikhemikhale e kgothaletsa ho thehwa ha lera le teteaneng la char. Lera lena la char le sebetsa e le thibelo ya ho thibela, ka katleho e fokotsa phetiso ya mocheso le oksijene ho thepa e ka tlase, ka hona e sitisa ho ata ha malakabe.
Ho phaella moo, APP e sebetsa e le sethibela-malakabe se kenellang ka hare ho di-sealant tse ntseng di hola. Ha di pepesetswa mollong, di-intumescent additives, ho kenyeletswa le APP, di feta tshebetsong ya ho ruruha, ho tjhesa, le ho etsa lera le sireletsang mocheso. Lera lena le thusa ho fokotsa phetiso ya mocheso le ho lokollwa ha dikgase tse sa tjheseng, ka hona le thibela ho ata ha mollo ka katleho.
Ho feta moo, boteng ba APP ho di-sealant tse ntseng di hola bo eketsa khanyetso ya tsona ka kakaretso mollong mme bo fihlella maemo a thata a polokeho mollong. Mocheso o bopilweng ka lebaka la karabelo ya APP o sireletsa thepa e ka tlase ka katleho, o fana ka nako e eketsehileng ya karabelo ya tshohanyetso le ho ntshwa ha mollo.
Qetellong, ho atoloseng di-sealant formulations, ho kenyelletswa ha ammonium polyphosphate ho ntlafatsa haholo ho hanyetsa mollo ka ho kgothaletsa ho thehwa ha lera le sireletsang la char, ho fokotsa phetiso ya mocheso le oksijene, le ho fana ka thibelo e sebetsang kgahlanong le ho ata ha malakabe. Sena se tlatsetsa polokehong ya mollo ka kakaretso le tshebetsong ya dihlahiswa tsa sealant tse atolohang ditshebedisong tse fapaneng.