Silica xuab zeb feem ntau yog ib daim ntawv ntawm silicon dioxide (SiO2) thiab muaj ob lub ntsiab tseem ceeb - silica thiab oxygen.
Cov feem ntau ntawm cov silica yog quartz, ib tug chemically inert thiab nyuaj ntxhia uas lov raws sij hawm los ntawm cua thiab dej rau hauv me me hais hu ua silica xuab zeb.
Nws tseem hu ua xuab zeb dawb, quartz xuab zeb thiab cov xuab zeb muaj thiab tuaj nyob rau hauv ntau yam ntxoov ntxoo, feem ntau dawb los yog xim tsis muaj xim. Cov xim ntawm cov xuab zeb feem ntau yog nyob ntawm cov pob zeb tawg thiab ntau yam minerals uas tsim cov peev txheej.
Nws tau txais los ntawm cov khoom siv quartz los ntawm qhov chaw xws li lub puam dunes thiab ua tiav rau hauv ntau hom thiab qib ntawm cov xuab zeb, uas tom qab ntawd muab rau cov lag luam sib txawv rau ntau yam kev siv.
Silica xuab zeb muaj qee cov qauv thiab yuav tsum muaj tsawg kawg yog 95% silica thiab sib npaug rau 0.6% hlau oxide, txwv tsis pub nws suav tias yog xuab zeb zoo tib yam.
silica xuab zeb txawv ntawm lwm cov xuab zeb li cas?
Lwm cov xuab zeb ntawm no yog hais txog cov xuab zeb tsis tu ncua lossis niaj hnub siv xuab zeb, feem ntau yog xim av xim thiab siv rau kev siv pob zeb. Lawv kuj muaj qee cov silica, tab sis tsuas yog txog li 80%, thiab lwm yam minerals xws li hlau, potassium, carbonates thiab lwm yam kab kawm.
Lub xub ntiag ntawm cov zaub mov no ua rau cov xuab zeb tsis tu ncua thiab cov xim tsaus dua piv rau silica xuab zeb. Ordinary xuab zeb (tsis yog-silica xuab zeb) tuaj hauv paj yeeb, dub, ntsuab thiab lwm yam xim, nyob ntawm seb cov xuab zeb tso rau hauv qhov chaw sib txawv.
Silica xuab zeb siv
Silica xuab zeb muaj nuj nqis rau nws ntau yam khoom muaj txiaj ntsig. Nws muaj qhov siab melting point thiab qis coefficient ntawm thermal expansion, ua rau nws yog ib qho kev xaiv zoo rau cov ntawv thov uas muaj qhov kub thiab txias.
Nov yog qee qhov piv txwv ntawm silica xuab zeb siv nyob rau hauv ntau qhov chaw.
1. iav
Silica xuab zeb yog ib qho tseem ceeb hauv kev tsim iav. Nws yog ib qho tseem ceeb heev raw khoom rau txheem iav thiab tshwj xeeb iav. Cov tshuaj purity ntawm silica xuab zeb yog thawj qhov kev txiav txim siab ntawm lub zog, xim thiab meej.
Nws yog siv los tsim cov iav tiaj tus rau kev tsim kho thiab kev siv tsheb nrog rau lub thawv iav rau khaws cov zaub mov thiab dej haus. Nws txhawb fiberglass thiab yuav tsum tau tsim cov fiberglass rwb thaiv tsev. Nws yog siv rau hauv cov tsom iav tshwj xeeb suav nrog cov raj ntsuas, cov cuab yeej tshawb fawb, TVs thiab CRT saib, nrog rau cov teeb pom kev zoo thiab cov teeb fluorescent.
2. Cov chaw ua si thiab golf
Ntawm cov chaw ua si hluavtaws thiab cov chaw ntaus golf, silica xuab zeb yog siv rau hauv cov bunkers thiab muab cov zaub ntsuab. Vim nws muaj peev xwm los txhawb kev loj hlob ntawm cov nroj tsuag ntuj, nws kuj tseem siv tau los tswj cov zaub ntsuab thiab kev ncaj ncees. Lub ntuj granule zoo muab qhov xav tau permeability thiab pab txhawb kev tu niaj hnub xws li hauv paus aeration thiab fertilization.
3. Calcium silicate cib
Thaum ua cov calcium silicate cib, silica xuab zeb yog tov nrog high-calcium txiv qaub, nrog ib tug xuab zeb-rau-ash piv ntawm 10 los yog 20. Cov cib no muaj zoo li qub, du nto thiab ntse ces kaum thiab muaj nyob rau hauv ntau yam muaj zog.
Calcium silicate cib muaj qhov zoo sib xws rau cov pob zeb, tab sis tsis tiv taus qhov chaw uas muaj leej faj. Kawm paub ntau ntxiv txog hom tsev cib.
4. Kev lim dej
Silica xuab zebyog lub txaj lim zoo rau kev tshem tawm cov kab mob hauv kev kho dej khib nyiab thiab lim dej haus.
Silica xuab zeb neutralizes acidic cov ntsiab lus kom muaj pH zoo nyob rau hauv koj lub lim dej. Vim tias nws yog tshuaj lom neeg tsis muaj zog, nws tsis hnov mob thaum raug cov kua qaub, cov kab mob sib kis, cov tshuaj tsis haum tshuaj organic, lossis cov kuab tshuaj.
5. Hlau casting thiab ntau lawm
Silica xuab zeb yog ib qho tseem ceeb hauv kev tsim cov hlau, ferrous thiab non-ferrous castings, siv rau deoxidation thiab grain refinement.
Txhawm rau kom tau txais qhov xav tau sab hauv lossis sab nraud, cov khoom hlau yog cam khwb cia hauv silica xuab zeb. Nws yog thawj qhov kev xaiv rau castings uas muaj cam khwb cia hlau, hlau, titanium thiab kuj yog siv los ntxuav qhov chaw casting.
6. Xim thiab Txheej
Silica xuab zeb muaj kev ua haujlwm siab xws li ci ntsa iab, pom kev, roj nqus thiab xim sib xws. Cov khoom no pab txhim kho tag nrho cov tsos thiab durability ntawm industrial thiab architectural xim thiab coatings.
Nws cov roj tsawg nqus tau txhim kho xim xim, uas ua rau cov txheej txheem ruaj khov nplua nuj nyob hauv cov xim. Silica fillers txhim kho xim tuav thiab tiv taus stains, mildew, huab cua thiab tawg.
7. Kev tsim kho
Nws yog ib qho khoom tseem ceeb hauv ntau yam khoom siv hauv tsev thiab kev tsim kho. Txhawm rau txhim kho kev ua haujlwm ntev thiab kev ncaj ncees, tag nrho cov nplej silica yog siv rau hauv flooring, mortars, tshwj xeeb cements, ru tsev vuas, asphalt mixs, anti-skid nto thiab lwm yam khoom siv. Nws ua raws li kev ua haujlwm txuas ntxiv los ua kom cov kav ntev, kev tiv thaiv corrosion thiab huab cua tsis kam ntawm sealants, caulks, thiab epoxy-based compounds.
8. Ceramics thiab Refractories
Nws yog ib qho tseem ceeb ntawm glaze thiab lub cev formulations rau tag nrho cov hom ntawm ceramic khoom xws li tableware, pem teb vuas, phab ntsa vuas, sanitary ware, thiab lwm yam.
9.Industrial abrasives
Vim nws cov kab sib txawv thiab angular, nws feem ntau yog siv los ua cov ntxhia abrasive rau kev lag luam sandblasting. Silica xuab zeb pab kom du puag ncig rau sandblasting, thiab qee cov resins siv los tiv thaiv kev noj qab haus huv ntawm silica hmoov av.
10.Lwm daim ntawv thov
Hauv cov txheej txheem roj thiab roj rov qab, silica xuab zeb yog hu ua fracking xuab zeb. Nws yog pumped downhole nyob rau hauv sib sib zog nqus daim ntaub ntawv los mus nce tus nqi ntawm cov roj av los yog tej yam ntuj tso roj, thiab nws cov tshuaj purity pab tiv thaiv tshuaj tua kab mob nyob rau hauv corrosion-resistant ib puag ncig.
Silica xuab zeb muaj ntau yam kev siv nyob rau hauv ntau yam lag luam, yog li ua ntej kev yuav khoom, xyuas cov qib thiab yuav los ntawm cov chaw tsim khoom muaj npe kom tsis txhob muaj cov xuab zeb uas muaj impurities.