Hlau yog cov pob txha ntawm suav tsis txheeb kev lag luam, los ntawm kev tsim kho thiab tsheb mus rau aerospace thiab marine. Txawm li cas los xij, corrosion yog ib qho teeb meem tseem ceeb tshaj plaws uas cov hlau ntsib, ua rau cov txheej txheem degradation, txo lub neej, thiab nce nqi kho. Raws li ib tug ua lag luam ntawm multipurpose titanium dioxide, peb yog nyob rau hauv pem hauv ntej ntawm muab kev daws teeb meem los txhim kho corrosion kuj ntawm hlau.
Nkag siab txog Corrosion thiab nws qhov cuam tshuam
Corrosion yog txheej txheem ntuj tsim uas tshwm sim thaum cov hlau ua rau lawv ib puag ncig, feem ntau yog oxygen thiab dej. Cov tshuaj tiv thaiv electrochemical no ua rau tsim cov hlau oxides, uas ua rau cov hlau tsis muaj zog rau lub sijhawm. Nyob rau hauv ib puag ncig hnyav, xws li chaw lag luam, thaj chaw ntug dej hiav txwv, lossis siab - thaj chaw av noo, tus nqi ntawm corrosion tuaj yeem nrawm nrawm.
Qhov cuam tshuam ntawm corrosion yog deb - mus txog. Hauv kev tsim kho kev lag luam, corroded steel tuaj yeem cuam tshuam kev ncaj ncees ntawm cov tsev thiab txuas hniav, ua rau muaj kev nyab xeeb loj heev. Hauv kev lag luam tsheb, xeb tuaj yeem ua rau kev ua haujlwm tsis zoo thiab txo qhov kev zoo nkauj ntawm cov tsheb. Thiab nyob rau hauv kev lag luam marine, corrosion ntawm nkoj hulls yuav ua rau kom roj noj thiab shorten lub neej ntawm cov hlab ntsha.
Lub luag haujlwm ntawm Multipurpose Titanium Dioxide hauv Corrosion Resistance
Multipurpose titanium dioxide muaj cov khoom tshwj xeeb uas ua rau nws ua haujlwm zoo rau kev txhim kho corrosion ntawm cov hlau. Titanium dioxide muaj nyob rau hauv ob lub ntsiab siv lead ua: anatase thiab rutile. Peb cov khoom, suav nrogNtau - lub hom phiaj Tio2 Anatse Titanium Dioxide Nqe Sib npaug rau Cosmo KA100, Anatase Titanium Dioxide (Enamel Qib), thiabAnatase Titanium Dioxide BA 01 - 01, muab cov yam ntxwv sib txawv haum rau ntau yam kev siv.
1. Kev Txhaum Cai
Ib qho ntawm txoj hauv kev tseem ceeb ntawm titanium dioxide txhim kho corrosion kuj yog los ntawm kev tsim lub cev thaiv lub cev ntawm cov hlau. Thaum siv los ua cov txheej txheej los yog muab tso rau hauv cov xim pleev xim, cov khoom titanium dioxide tuaj yeem sau cov pores thiab crevices ntawm cov hlau. Qhov kev thaiv no tiv thaiv cov pa oxygen, dej, thiab lwm yam corrosive agents los ntawm kev ncav cuag cov hlau substrate, ua kom cov txheej txheem corrosion ua haujlwm tau zoo.
Qhov loj me me ntawm peb cov khoom siv titanium dioxide tso cai rau cov txheej txheem ntau dua thiab ntom ntom. Cov khoom tuaj yeem ntim tau zoo ua ke, tsim cov txheej txheem txuas ntxiv uas muaj kev tiv thaiv zoo rau kev nkag mus ntawm cov tshuaj corrosive. Qhov no yog ib qho tseem ceeb tshwj xeeb hauv kev siv sab nraum zoov uas cov hlau tsis tu ncua raug rau cov ntsiab lus.
2. Yees duab - catalytic thiab Tus Kheej - Kev Tu Cov Khoom
Anatase - hom titanium dioxide muaj duab - catalytic zog. Thaum raug ultraviolet (UV) lub teeb, titanium dioxide tuaj yeem tsim hluav taws xob - qhov khub. Cov hom reactive no tuaj yeem rhuav tshem cov pa phem thiab cov kab mob ntawm cov hlau. Nyob rau hauv cov ntsiab lus ntawm corrosion, qhov no tus kheej - tu nyhuv pab tshem tawm tej yam kab mob uas yuav ua rau kom cov txheej txheem corrosion.
Piv txwv li, nyob rau hauv ib puag ncig kev lag luam uas cov hlau raug rau cov pa phem thiab cov tshuaj sulfur, daim duab - catalytic kev txiav txim ntawm anatase titanium dioxide tuaj yeem hloov cov khoom tsis zoo no rau hauv cov ntaub ntawv corrosive tsawg. Qhov no tsis tsuas yog tiv thaiv cov hlau los ntawm kev xeb ncaj qha tab sis kuj txo qhov tsim - ntawm cov khoom uas tuaj yeem txhawb kev xeb.
3. Passivation ntawm cov hlau nto
Titanium dioxide kuj tseem tuaj yeem pab txhawb lub passivation ntawm hlau nto. Passivation yog txheej txheem uas nyias, tiv thaiv txheej txheej ntawm cov hlau, uas tiv taus corrosion ntau dua. Thaum titanium dioxide nyob rau hauv kev sib cuag nrog cov hlau nto, nws muaj peev xwm cuam tshuam nrog cov hlau ions thiab oxygen nyob rau hauv ib puag ncig, txhawb kev tsim ntawm passive oxide txheej.
Cov txheej txheem passive no ua raws li daim ntaub thaiv, tiv thaiv ntxiv oxidation ntawm cov hlau. Nyob rau hauv cov ntaub ntawv ntawm stainless hlau, piv txwv li, muaj titanium dioxide nyob rau hauv ib txheej yuav txhim khu kev ruaj ntseg ntawm passive chromium oxide txheej, ua rau cov hlau ntau resistant rau pitting corrosion.
Daim ntawv thov nyob rau hauv txawv Industries
Kev lag luam kev tsim kho
Hauv kev tsim kho kev lag luam, hlau thiab hlau tau siv dav hauv cov qauv xws li cov tsev, txuas hniav, thiab cov yees. Los ntawm kev siv cov txheej txheem uas muaj peb cov khoom siv ntau yam titanium dioxide, kev pabcuam lub neej ntawm cov qauv no tuaj yeem txuas ntxiv. Piv txwv li, nyob rau hauv cov ntug dej hiav txwv uas huab cua yog laden nrog ntsev, uas yog heev corrosive rau hlau, titanium - dioxide - txhim khu kev qha coatings yuav tiv thaiv steel qauv los ntawm ntsev - induced corrosion.
Tus kheej - kev tu vaj tse ntawm anatase titanium dioxide kuj tau txais txiaj ntsig hauv cov tsev siab - nce. Nws pab ua kom cov hlau facades huv si, tswj lawv qhov zoo nkauj thiab txo qhov xav tau kev tu ntau zaus.
Automotive Kev Lag Luam
Hauv kev lag luam automotive, titanium dioxide yog siv nyob rau hauv automotive xim. Nws tsis tsuas yog muab lub siab - zoo, glossy tag tab sis kuj txhim kho corrosion kuj ntawm lub cev tsheb. Lub cev thaiv lub cev tsim los ntawm cov khoom titanium dioxide hauv cov xim tiv thaiv kom tsis txhob ya raws thiab oxygen mus txog ntawm cov hlau nto, txo qhov kev pheej hmoo ntawm xeb tsim.
Ntxiv mus, daim duab - cov cuab yeej catalytic tuaj yeem pab ua kom lub tsheb sab nrauv huv si los ntawm kev rhuav tshem cov av thiab cov pa phem. Qhov no yog tshwj xeeb tshaj yog muaj txiaj ntsig nyob rau hauv nroog qhov chaw uas cov tsheb raug rau cov pa pa thiab lwm yam kab mob.
Kev lag luam marine
Marine ib puag ncig yog corrosive heev vim muaj dej ntsev, av noo siab, thiab huab cua hnyav. Nkoj 'hulls, offshore platforms, thiab lwm yam marine lug muaj kev pheej hmoo ntawm corrosion. Multipurpose titanium dioxide tuaj yeem muab tso rau hauv marine txheej los tiv thaiv cov qauv no.
Qhov thaiv ntom ntom tsim los ntawm titanium dioxide zoo thaiv kev nkag mus ntawm cov dej ntsev thiab oxygen, txo tus nqi ntawm corrosion. Tus kheej - tu vaj tse kuj pab tiv thaiv kev loj hlob ntawm cov kab mob marine nyob rau saum npoo ntawm cov qauv, uas tuaj yeem ua rau muaj kev puas tsuaj ntxiv yog tias tsis kho.
Kev ua tau zoo thiab kev ruaj ntseg zoo
Raws li tus neeg muag khoom, peb tau cog lus los muab siab - cov khoom siv ntau yam titanium dioxide zoo. Peb cov txheej txheem tsim khoom yog ua tib zoo tswj kom ntseeg tau tias cov khoom zoo ib yam. Peb siv cov txheej txheem ntau lawm los tsim titanium dioxide nrog qhov xav tau particle loj, siv lead ua qauv, thiab purity.
Peb kuj tseem ua qhov kev ntsuam xyuas zoo ntawm txhua pawg ntawm peb cov khoom. Peb cov kev sim muaj xws li tshuaj ntsuam xyuas, ntsuas particle loj, thiab kev ntsuam xyuas ntawm cov haujlwm photocatalytic. Qhov no ua kom ntseeg tau tias peb cov khoom ua tau raws li cov qauv siab tshaj plaws ntawm kev ua tau zoo thiab kev ntseeg siab hauv kev txhim kho corrosion kuj ntawm cov hlau.
Xaus
Multipurpose titanium dioxide plays lub luag haujlwm tseem ceeb hauv kev txhim kho corrosion kuj ntawm cov hlau los ntawm kev tsim thaiv, duab - catalytic tus kheej - tu, thiab passivation ntawm cov hlau nto. Peb cov khoom ntawm titanium dioxide ntau yam, xws liNtau - lub hom phiaj Tio2 Anatse Titanium Dioxide Nqe Sib npaug rau Cosmo KA100, Anatase Titanium Dioxide (Enamel Qib), thiabAnatase Titanium Dioxide BA 01 - 01, muab cov kev daws teeb meem zoo rau ntau yam kev lag luam uas ntsib cov teeb meem corrosion.
Yog tias koj tab tom nrhiav kev txhim khu kev qha los txhim kho corrosion kuj ntawm koj cov khoom hlau, peb caw koj tiv tauj peb rau kev yuav khoom thiab kev sib tham ntxiv. Peb pab pawg kws tshaj lij tau npaj los pab koj xaiv cov khoom tsim nyog tshaj plaws titanium dioxide rau koj cov kev xav tau tshwj xeeb.
Cov ntaub ntawv
Jones, DA (1996). Cov Ntsiab Cai thiab Kev Tiv Thaiv Corrosion. Prentice - Hall.
Scholes, L. (2001). Corrosion thiab Corrosion Control: Kev Taw Qhia rau Corrosion Science thiab Engineering. Wiley.
Wang, X., & Zhang, J. (2015). Titanium Dioxide: Qauv, Khoom, thiab kev siv. Springer.