Vim li cas Aluminium Hydroxide tuaj yeem siv ua nplaim hluav taws
Feb 10, 2022
Aluminium hydroxide yog ib qho hluav taws xob tsis muaj hluav taws xob ntxiv nrog ntau tus nqi thiab ntau yam kev siv. Nws tuaj yeem tsis tsuas yog ua tiav cov txiaj ntsig ntawm cov nplaim hluav taws xob hauv kev siv, tab sis kuj tiv thaiv cov pa taws thiab drips. Nyob rau tib lub sijhawm, nws kuj tuaj yeem siv dav los ua cov nplaim hluav taws kub nyhiab hauv ntau qhov chaw, tab sis ntau tus neeg siv tsis nkag siab txog nws cov ntsiab lus tshwj xeeb, yog li nws yuav nthuav dav ntxiv tom ntej.
Raws li cov nplaim hluav taws kub hnyiab, nws tuaj yeem decompose chemically khi dej (kwv yees li 34.6 feem pua) ntawm qhov kub siab. Cov tshuaj tiv thaiv decomposition no yog cov tshuaj tiv thaiv endothermic, yog li nws tuaj yeem ncua lub thermal degradation tus nqi ntawm cov polymer thiab qeeb los yog inhibit polymer. combustion, inhibit qhov kub nce ntawm polymers, thiab txhawb carbonization thiab haus luam yeeb tsuj. Tsis tas li ntawd, qhov loj ntawm cov dej vapor tso tawm tuaj yeem dilute qhov concentration ntawm combustibles thiab txo qhov kev koom tes ntawm combustible gases rau combustion, uas ua rau txo tshav kub tso tawm thiab haus luam yeeb tsim nyob rau hauv lub system, uas kuj yuav pab cuam tshuam combustion.
Thaum rhuab thiab decomposed, nws tso dej thiab absorbs ib tug loj npaum li cas ntawm latent tshav kub, uas txo qhov kub ntawm lub nplaim taws nyob rau saum npoo ntawm cov khoom thiab slows down tus nqi ntawm polymer degradation rau hauv tsawg molecules, txo qhov tshwm sim ntawm combustibles; lub uniformly tso dej vapor dilutes cov pa oxygen. Lub concentration ntawm qhov combustion tsis tuaj yeem nqa tawm, qhov pib decomposition kub yog li 205 ° C, thiab 320 ° C tau pib ua tiav cov tshuaj tiv thaiv lub cev qhuav dej, tso cov dej siv lead ua, nqus cov cua sov, txo qhov kub (uas yog, " Cov tshuab cua txias hauv cov nplaim hluav taws xob thev naus laus zis, uas ua rau cov dej vapor loj tuaj yeem dilute cov roj combustible.
Nyob rau hauv luv luv, nyob rau hauv qhov kev txiav txim ntawm cov nplaim taws, lub decomposition ntawm cov polymer uas muaj nyob rau hauv lub polymer absorbs ib feem ntawm lub tshav kub tso tawm thaum lub sij hawm combustion txheej txheem, uas yog sib npaug rau tshem tawm cov cua sov los ntawm lub polymer, yog li txo qhov kub ntawm lub polymer thiab qeeb. txo tus nqi degradation. Qhov no dispersive endothermic tshuaj txias nyhuv yog lub ntsiab yog vim li cas rau nws cov nplaim retardancy. Cov dej vapor tso tawm los ntawm hydrogen decomposition tuaj yeem dilute qhov concentration ntawm cov pa roj reactants hauv thaj chaw nplaim taws, thiab muaj qee qhov txias txias. Sau rau hauv cov polymer, nws yuav pab tsim ib txheej carbonized thaum lub sij hawm combustion, uas tsis tsuas yog thaiv qhov nkag ntawm tshav kub thiab oxygen, tab sis kuj thaiv qhov khiav ntawm me me molecular flammable gases. Tau kawg, ob qhov tom kawg ntawm cov nplaim hluav taws kub hnyiab tau tsawg dua li qhov qub. Lawv kuj tseem tuaj yeem ua kom txo tau qhov kub ceev ntawm cov polymer, txo cov pa taws uas tsim los ntawm kev sib txuas, thiab ntes cov pa phem.
