Daim Ntawv Thov Aluminium Hydroxide

"Tshuaj alumina" yog hais txog kev tsim cov txhuas ingot tshwj tsis yog alumina, txhuas oxide thiab txhuas hydroxide sib txawv cov khoom lossis cov khoom txuas ntxiv. Muaj ntau pua hom tshuaj alumina, thiab nws muaj ntau yam kev siv hauv ntau qhov chaw. Tsab xov xwm no yuav qhia txog cov ntawv thov cuam tshuam ntawm txhuas hydroxide.

Aluminium hydroxide, tseem hu ua hydrated alumina, hydrous alumina, alumina hydrate, yog ib qho tshuaj amphoteric ib txwm muaj, soluble hauv cov kua qaub thiab cov hauv paus, insoluble hauv dej thiab cawv. Cov mis dav dav yog Al2O3 • H2O nrog lub ntsiab lus yaj ntawm 300 (poob dej). Raws li nws cov dej ntsiab lus, cov koob aluminium hydroxide tuaj yeem muab faib ua: alumina trihydrate, alumina monohydrate, crystallinity qis alumina thiab amorphous aluminium hydroxide. Rho tawm los ntawm bauxite, nws kuj tuaj yeem ua los ntawm txhuas ntsev thiab sodium hydroxide nrog ammonia dej. Muaj ob hom crystalline thiab amorphous (gel).

Cov amorphous aluminium hydroxide muaj cov alkali tsawg, hlau tsawg, cov khoom me me, thiab dawb siab. Cov qauv siv tau zoo muaj qhov zoo ntawm qhov nyuaj loj, tiv taus kub, tiv taus hnav, ruaj khov tshuaj lom neeg zoo, tsis muaj tshuaj lom, tsis muaj saj, tsis hloov pauv, qhuav thiab nqus cua sov thaum cov qauv siv tau zoo raug cua sov rau ntau dua 250 DEG C, thiab muaj kev tshem tawm pa luam yeeb zoo thiab tiv taus hluav taws. Cov chaw siv tseem ceeb yog raws li nram no.

Aluminium hydroxide yog ib hom khoom siv inorganic purified, nws cov impurity content qis, thiab cov polymers uas siv aluminium hydroxide ua tus neeg sawv cev yog polyurethane resin, epoxy resin, polyethylene, polypropylene, styrene butadiene roj hmab, thiab lwm yam. Aluminium hydroxide ua ib qho tshuaj tua hluav taws zoo thiab tshuaj tua pa luam yeeb tau siv rau hauv cov roj hmab unsaturated tau ntau xyoo.

Lub tshuab ua kom nplaim taws rov qab los ntxiv ATH rau hauv cov polymer, txo cov roj concentration; txhuas hydroxide pib ntawm 250 DEG C endothermic dehydration, inhibition ntawm polymer kub nce; decomposition ntawm cov dej vapor dilution ntawm oxygen concentration, qeeb combustion; hauv kev tsim cov nplaim hluav taws ntawm alumina tuaj yeem tiv thaiv kev sib xyaw ua ke kom txuas ntxiv mus.

Aluminium hydroxide feem ntau yog siv rau hauv kev lag luam txheej rau cov txheej saum npoo, cov khoom sau, thiab cov ntawv tsis kub hnyiab. Aluminium hydroxide tuaj yeem txhim kho qhov ci ntsa iab, kev cuam tshuam, kev tiv thaiv lub teeb, kev du thiab kev luam tawm ntawm daim ntawv. Aluminium hydroxide kuj tseem siv tau ua cov khoom siv raw rau cov ntawv coated, thiab titania yuav hloov av nplaum. Feem ntau siv aluminium hydroxide qhov loj me me yog 0.7-1.4 mu m.

Daim ntawv tiv thaiv hluav taws: tiv thaiv hluav taws, ua kom muaj pa roj carbon dioxide, tab sis tsis kub hnyiab. Ua los ntawm daim ntawv asbestos, lossis daim ntawv tiv thaiv hluav taws nrog daim ntawv tsim nyog (xws li txhuas hydroxide) thiab kho.

Aluminium hydroxide tsis muaj tshuaj lom thiab tsis muaj saj, tsis yaj hauv dej, yog ib hom tshuaj txhuam tsis muaj zog zoo, cov tshuaj txhuam hniav txhuam ntawm kev lag luam ntawm aluminium hydroxide Mohs hardness yog 2.5-3.5, qhov huv ntawm ntau dua 99%, pH tus nqi 8.0-9.5, D50 tus nqi yog 8-15 micron, tus nqi nruab nrab, yog cov tshuaj txhuam hniav txhuam zoo, fluoride thiab sib xws, kev ua tau zoo heev. Yog ib qho ntawm cov tshuaj txhuam hniav zoo tshaj plaws.

Mullite (lossis mullite) yog cov khoom siv uas muaj aluminosilicate. Mullite yog tib qho khoom siv ruaj khov ob yam hauv Al2O3 SiO2 system. Hom khoom siv no tsis tshua muaj. Nws yog ib hom khoom siv refractory zoo, thiab mullite tuaj yeem tsim los ntawm kev ua kom sov aluminium silicate. Mullite feem ntau yog siv rau hauv refractories, ceramics, metallurgy, casting, electronics thiab lwm yam lag luam. Nws muaj cov yam ntxwv ntawm kev tiv taus kub siab, lub zog siab thiab kev ua haujlwm thermal me me.

Tsis tas li ntawd xwb, txhuas hydroxide tuaj yeem siv ua cov pob zeb marble cuav, cov agate cuav, cov ntaub pua plag filler; kev tsim cov txhuas sulfate, alum, alumina, hydrated alumina, sodium aluminate cov khoom siv tshuaj lom neeg cov khoom siv roj hmab; nplaim taws retardant; siv ua cov khoom sau thiab cov khoom ntxiv ntawm cov nplaum thiab sealants; synthetic molecular sieve; rau gastric antiacids thiab lwm yam.

Cov hom gel aluminium hydroxide yog Aluminium Hydroxide Gel, boehmite, amorphous alumina. Nws muaj cov nplaum zoo, molding, kub siab, muaj peev xwm kub loj, thermal conductivity tsawg, corrosion zoo thiab oxidation tsis kam, muaj zog thiab du nto.

Aluminium hydroxide yog ib qho ntawm cov khoom xyaw tseem ceeb ntawm cov tshuaj aluminium gel rau lub plab yog kev kho mob plab thiab cov kua qaub hauv plab, tshuaj ib txwm muaj, cov tshuaj sib xyaw xws li vitamin U thiab txhuas capsules, Aluminium Hydroxide Tablets thiab lwm yam khoom tseem ceeb, kuj siv tau rau cov khoom siv kho mob. Lub tshuab ua haujlwm ntawm nws cov tshuaj tiv thaiv kua qaub hauv plab yog Al (OH) 3 + 6HCl = 2AlCl 3 + 3H2O. Rau cov dej alumina uas ua los ntawm aluminium hydroxide tuaj yeem siv ua tus neeg sawv cev gelling hauv kev kho mob thiab tshuaj pleev ib ce.

Kev kho qhov chaw thiab cov nplaum nplaum nws Aluminium Hydroxide Gel siv tau ua los ntawm cov inorganic lossis organic fiber, siv nws qhov kub siab tiv taus thiab qhov chaw tiav, dav siv hauv kev tsim cov khoom siv ceramic qib siab, kuj siv rau kev tsim hluav taws xob porcelain; tib lub sijhawm nws tseem yog cov khoom siv inorganic.