Hauv cov qauv tshuaj sealant uas nthuav dav, ammonium polyphosphate (APP) ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev tiv thaiv hluav taws.
APP feem ntau siv ua ib yam khoom tiv thaiv hluav taws hauv cov tshuaj sealant uas nthuav dav. Thaum raug kub heev thaum muaj hluav taws, APP yuav hloov pauv mus ua ib qho tshuaj lom neeg nyuaj heev. Qhov kub ua rau cov kua qaub phosphoric tso tawm, uas ua rau cov tshuaj lom neeg dawb uas tsim los ntawm cov txheej txheem hlawv. Cov tshuaj lom neeg no ua rau muaj ib txheej char ntom ntom. Cov txheej char no ua haujlwm ua ib qho thaiv kev rwb thaiv tsev, txwv tsis pub muaj cua sov thiab oxygen mus rau cov khoom hauv qab, yog li ntawd nws thiaj li tiv thaiv kev kis ntawm cov nplaim taws.
Tsis tas li ntawd xwb, APP ua haujlwm ua ib yam khoom tiv thaiv hluav taws kub hauv cov tshuaj sealant uas nthuav dav. Thaum raug hluav taws, cov khoom ntxiv uas tiv thaiv hluav taws kub, suav nrog APP, yuav o, kub hnyiab, thiab tsim ib txheej tiv thaiv. Txheej no pab txo qhov hloov pauv cua sov thiab tso cov pa roj uas tsis kub hnyiab, yog li ntawd thiaj li tiv thaiv hluav taws kom tsis txhob kis tau.
Tsis tas li ntawd xwb, qhov muaj APP nyob rau hauv cov sealant nthuav dav ua rau lawv tiv taus hluav taws tag nrho thiab ua tau raws li cov qauv kev nyab xeeb hluav taws. Cov hluav taws uas tsim los ntawm APP ua rau cov khoom siv hauv qab rwb thaiv tsev zoo, muab sijhawm ntxiv rau kev teb thaum muaj xwm txheej ceev thiab kev khiav tawm thaum muaj hluav taws kub.
Xaus lus, hauv cov qauv sealant nthuav dav, kev sib xyaw ntawm ammonium polyphosphate ua rau muaj kev tiv thaiv hluav taws ntau ntxiv los ntawm kev txhawb nqa kev tsim cov txheej txheem tiv thaiv hluav taws, txo qis cua sov thiab oxygen hloov pauv, thiab muab cov khoom thaiv zoo tiv thaiv kev sib kis ntawm cov nplaim taws. Qhov no pab txhawb rau kev nyab xeeb hluav taws thiab kev ua tau zoo ntawm cov khoom sealant nthuav dav hauv ntau yam kev siv.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-22-2023
