Hydrotalcite, tseem hu ua txheej txheej ob hydroxide, muaj cov txheej txheem tshwj xeeb uas ua lub luag haujlwm tseem ceeb hauv cov nplaim hluav taws. Yog li, cov nplaim hluav taws zoo heev ntawm hydrotalcite yog ua tiav los ntawm nws cov txheej txheem tshwj xeeb thiab ntau yam kev ua haujlwm. Peb cov hydrotalcite HTC -7 tuaj yeem ua tiav qhov txiaj ntsig no.
Cia peb xub saib cov haujlwm ntawm talc kom ua tiav cov nplaim hluav taws kub! cov
1. Hydrotalcite tuaj yeem tiv thaiv kev hloov pauv ntawm cov cua sov thiab cov roj hluav taws xob los ntawm cov teeb meem ntawm lub cev. Thaum lub sij hawm combustion txheej txheem, hydrotalcite tuaj yeem tsim cov txheej txheem rwb thaiv tsev ntom ntom, txo qhov kev nkag mus ntawm cov cua sov rau hauv cov substrate thiab ua kom cov combustion qeeb. Thaum tsim nyog, nws tuaj yeem yuav lub sijhawm rau kev khiav tawm ntawm cov neeg ua haujlwm thiab tua hluav taws. cov
2. Hydrotalcite kuj muaj cov tshuaj adsorption, uas tuaj yeem nqus cov dawb radicals tsim thaum lub sij hawm combustion, uas yog cov intermediates tseem ceeb hauv cov tshuaj tiv thaiv combustion. Cov nyhuv ntawm hydrotalcite tuaj yeem ntes cov dawb radicals zoo, cuam tshuam cov tshuaj tiv thaiv kab mob sib kis, thiab tiv thaiv kev sib kis ntawm hluav taws. cov
3. Hydrotalcite kuj tuaj yeem ua haujlwm sib koom ua ke nrog lwm cov nplaim hluav taws kub hnyiab los txhim kho cov nplaim hluav taws. Nws tuaj yeem siv ua ke nrog halogen nplaim retardants los txhim kho qhov ruaj khov thiab kav ntev ntawm cov nplaim hluav taws xob; Ua ke nrog phosphorus raws nplaim hluav taws xob, nws tsim cov nplaim hluav taws xob sib xyaw ua ke, ua kom cov nplaim hluav taws kub hnyiab ntxiv.
Tsis tas li ntawd, qhov pib decomposition kub ntawm hydrotalcite muaj ob qho tib si qis thiab siab kub ntau yam, uas nthuav dav qhov kub thiab txias ntawm nws cov nplaim hluav taws ua haujlwm, sib txuas cov txiaj ntsig ntawm aluminium hydroxide thiab magnesium hydroxide, thiab kov yeej lawv qhov tsis txaus. Nyob rau tib lub sijhawm, hydrotalcite kuj muaj cov pa luam yeeb cuam tshuam, uas tuaj yeem txo cov pa luam yeeb thaum lub sij hawm combustion, txo cov toxicity thiab irritability ntawm pa luam yeeb, thiab txhim kho visibility nyob rau hauv hluav taws kub.
Nyob rau hauv qhov kub thiab txias, hydrotalcite tuaj yeem tso cov dej hauv cov txheej txheem, txheej hydroxyl pawg, thiab interlayer anions. Cov tshuaj no tso tawm hauv daim ntawv ntawm dej thiab CO2 tuaj yeem txo qhov concentration ntawm cov pa roj carbon monoxide, thaum thaiv cov pa oxygen thiab ua rau cov nplaim hluav taws kub hnyiab tau zoo.
Qhov pib decomposition kub ntawm aluminium hydroxide kuj qis (kwv yees li 200 degree), thaum lub sij hawm pib decomposition kub ntawm magnesium hydroxide kuj siab (kwv yees li 320 degree). Aluminium hydroxide muaj txiaj ntsig zoo dua li magnesium hydroxide hauv kev tiv thaiv cov khoom kub nce, txo qhov kub ntawm qhov tso tawm, ua kom cov khoom siv hluav taws xob kub kub (thaum siab filling), thiab ua kom lub sij hawm ignition ntev. Txawm li cas los xij, nyob rau hauv cov nqe lus ntawm kev nce tus kheej ignition kub ntawm cov khoom (nyob rau hauv tsawg filling), kev txhim kho cov pa index, thiab txhawb carbonization nyhuv, magnesium hydroxide exhibits kev ua tau zoo dua. cov
Thiab cov yam ntxwv ntawm HTC -7 hydrotalcite ua rau nws muaj txiaj ntsig zoo, tsis muaj tshuaj lom, thiab cov pa luam yeeb tsis tshua muaj hluav taws kub retardant tshiab ntau yam, tshwj xeeb tshaj yog hloov cov tshuaj antimony trioxide, hydrotalcite qhia tau hais tias muaj peev xwm zoo. Antimony trioxide tau siv dav hauv kev lag luam hluav taws xob vim nws cov nplaim hluav taws zoo heev, tab sis nws cov hlau hnyav thiab cov tshuaj muaj txiaj ntsig tau ua rau muaj kev txhawj xeeb txog kev tiv thaiv ib puag ncig thiab tib neeg kev noj qab haus huv.
Yog li ntawd, nyob rau hauv sib piv, raws li ib tug kiag li uas tsis yog-tshuaj lom nplaim retardant uas tsis tsim teeb meem tshuaj, hydrotalcite tsis muaj teeb meem rau ib puag ncig thiab tib neeg noj qab haus huv, ua tau raws li cov kev xav tau ntawm kev tiv thaiv ib puag ncig thiab kev nyab xeeb. Hydrotalcite muaj cov nplaim hluav taws zoo heev thiab tsis muaj tshuaj lom, uas ua rau nws siv dav hauv ntau yam khoom xws li cov khoom siv hluavtaws, coatings, xim, thiab lwm yam. Nrog rau kev nce qib ntawm kev siv tshuab thiab kev paub txog kev tiv thaiv ib puag ncig, hom tshiab halogen. -dawb nplaim retardant - magnesium aluminium hydrotalcite - tau pib tau txais kev saib xyuas los ntawm kev lag luam. cov
Rau hydrotalcite, peb HTC-3 thiab HTC-5 kuj tseem tuaj yeem siv rau hauv thaj chaw xws li calcium zinc stabilizers, nrog rau thermal stability thiab acid absorbing nyhuv. Yog xav paub ntxiv, txais tos hu rau!
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