Puas yog Titanium Dioxide hauv Zaub Mov Ua Phem?

Kev nyab xeeb ntawm titanium dioxide (TiO 2) hauv cov zaub mov tau yog lub ntsiab lus ntawm kev sib cav thiab kev tshuaj xyuas nyob rau xyoo tas los no. Titanium dioxide yog siv los ua khoom noj khoom haus feem ntau rau nws cov xim dawb, opacity, thiab muaj peev xwm los txhim kho cov tsos ntawm qee yam khoom noj. Nws tau sau tias E171 hauv European Union thiab tau tso cai siv rau hauv cov khoom noj thiab dej haus hauv ntau lub tebchaws thoob ntiaj teb.

$Khoom noj khoom haus-Qib Titanium Dioxide: Khoom, Daim Ntawv Thov, thiab Kev Nyab Xeeb Kev Nyab Xeeb Taw Qhia: Titanium dioxide (TiO2) yog ib qho ntxhia tshwm sim uas tau siv dav los ua cov xim dawb hauv ntau daim ntawv thov kev lag luam rau nws qhov zoo tshaj plaws opacity thiab brightness. Nyob rau hauv xyoo tas los no, titanium dioxide kuj tau pom nws txoj hauv kev rau hauv kev lag luam zaub mov raws li cov khoom noj khoom haus ntxiv, hu ua zaub mov qib titanium dioxide. Hauv tsab ntawv no, peb yuav tshawb xyuas cov khoom, kev siv, kev xav txog kev nyab xeeb, thiab kev tswj hwm ntawm cov zaub mov qib titanium dioxide. Cov Khoom Siv Khoom Noj Qib Titanium Dioxide: Khoom noj khoom haus qib titanium dioxide qhia ntau yam khoom nrog nws cov khoom lag luam, tab sis nrog kev txiav txim siab tshwj xeeb rau kev nyab xeeb khoom noj. Nws feem ntau muaj nyob rau hauv daim ntawv ntawm ib tug nplua, dawb hmoov thiab paub rau nws siab refractive index, uas muab nws zoo heev opacity thiab brightness. Qhov loj me me ntawm cov khoom noj-qib titanium dioxide tau ua tib zoo tswj kom ntseeg tau tias muaj kev sib cais tsis sib xws thiab cuam tshuam tsawg kawg nkaus ntawm kev ntxhib los mos lossis saj hauv cov khoom noj. Tsis tas li ntawd, cov zaub mov-qib titanium dioxide feem ntau raug rau cov txheej txheem huv huv kom tshem tawm cov impurities thiab cov kab mob, kom ntseeg tau tias nws tsim nyog rau kev siv hauv cov ntawv thov zaub mov. Txoj kev tsim khoom: Khoom noj khoom haus qib titanium dioxide tuaj yeem tsim siv ob qho tib si ntuj thiab hluavtaws. Ntuj titanium dioxide yog tau los ntawm cov pob zeb hauv av, xws li rutile thiab ilmenite, los ntawm cov txheej txheem xws li extraction thiab purification. Synthetic titanium dioxide, ntawm qhov tod tes, yog tsim los ntawm cov txheej txheem tshuaj, feem ntau koom nrog cov tshuaj tiv thaiv ntawm titanium tetrachloride nrog oxygen lossis sulfur dioxide ntawm qhov kub thiab txias. Tsis hais txog ntawm txoj kev tsim khoom, kev ntsuas kev tswj xyuas zoo yog qhov tseem ceeb los xyuas kom meej tias cov zaub mov qib titanium dioxide ua tau raws li cov qauv nruj purity thiab kev nyab xeeb. Daim ntawv thov hauv Kev Lag Luam Khoom Noj: Khoom noj khoom haus qib titanium dioxide ua haujlwm feem ntau ua tus neeg sawv cev dawb thiab opacifier hauv ntau yam khoom noj. Nws yog feem ntau siv hauv cov khoom qab zib, khoom noj siv mis, khoom ci, thiab lwm yam khoom noj los txhim kho qhov pom kev pom thiab kev ntxhib los mos ntawm cov khoom noj. Piv txwv li, titanium dioxide yog ntxiv rau cov khoom qab zib txheej kom ua tiav cov xim zoo nkauj thiab cov khoom siv mis nyuj xws li yogurt thiab ice cream los txhim kho lawv cov opacity thiab creaminess. Hauv cov khoom ci, titanium dioxide pab tsim lub ci ci, zoo li cov khoom zoo li frosting thiab ncuav mog qab zib sib tov. Txoj Cai Tswjfwm Ntiag Tug thiab Kev Saib Xyuas Kev Nyab Xeeb: Kev nyab xeeb ntawm cov zaub mov-qib titanium dioxide yog ib qho kev sib cav tsis tu ncua thiab kev tshuaj xyuas kev tswj xyuas. Cov koom haum tswj hwm thoob ntiaj teb, suav nrog Food and Drug Administration (FDA) hauv Tebchaws Meskas thiab European Food Safety Authority (EFSA) hauv Tebchaws Europe, tau soj ntsuam kev nyab xeeb ntawm titanium dioxide raws li cov khoom noj ntxiv. Thaum titanium dioxide feem ntau lees paub tias muaj kev nyab xeeb (GRAS) thaum siv nyob rau hauv cov kev txwv tshwj xeeb, kev txhawj xeeb tau tshwm sim txog qhov muaj feem cuam tshuam txog kev noj qab haus huv cuam tshuam nrog nws kev noj, tshwj xeeb hauv daim ntawv nanoparticle. Muaj Peev Xwm Kev Noj Qab Haus Huv: Cov kev tshawb fawb tau qhia tias titanium dioxide nanoparticles, uas yog me dua 100 nanometers loj, tuaj yeem muaj peev xwm nkag mus rau hauv cov kab mob lom thiab sib sau ua ke hauv cov ntaub so ntswg, ua rau muaj kev txhawj xeeb txog lawv txoj kev nyab xeeb. Cov kev tshawb fawb tsiaj tau pom tias kev siv tshuaj ntau ntawm titanium dioxide nanoparticles tuaj yeem ua rau muaj kev phom sij rau lub siab, ob lub raum, thiab lwm yam kabmob. Tsis tas li ntawd, muaj pov thawj los qhia tias titanium dioxide nanoparticles tuaj yeem ua rau muaj kev ntxhov siab oxidative thiab o hauv hlwb, uas tuaj yeem ua rau muaj kab mob ntev. Cov tswv yim txo qis thiab lwm txoj hauv kev: Txhawm rau daws cov kev txhawj xeeb txog kev nyab xeeb ntawm cov zaub mov-qib titanium dioxide, kev siv zog tab tom tsim los tsim cov tshuaj ntxuav hniav dawb thiab cov tshuaj opacifiers uas tuaj yeem ua tiav cov txiaj ntsig zoo sib xws yam tsis muaj kev pheej hmoo rau kev noj qab haus huv. Qee cov tuam txhab lag luam tab tom tshawb nrhiav lwm txoj hauv kev, xws li calcium carbonate thiab nplej hmoov txhuv nplej siab, hloov cov titanium dioxide hauv qee cov khoom noj. Tsis tas li ntawd, kev nce qib hauv nanotechnology thiab particle engineering tuaj yeem muab sijhawm los txo cov kev pheej hmoo cuam tshuam nrog titanium dioxide nanoparticles los ntawm kev txhim kho particle tsim thiab kev hloov kho saum npoo. Consumer Awareness and Labeling: Transparent labeling and consumer education yog qhov tseem ceeb rau kev qhia rau cov neeg siv khoom txog qhov muaj cov khoom noj ntxiv xws li titanium dioxide hauv cov khoom noj. Cov ntawv sau meej thiab meej tuaj yeem pab cov neeg siv khoom paub xaiv thiab zam cov khoom uas muaj cov khoom ntxiv uas lawv yuav muaj kev nkag siab lossis kev txhawj xeeb. Tsis tas li ntawd, kev paub ntau ntxiv ntawm cov khoom noj khoom haus ntxiv thiab lawv qhov cuam tshuam txog kev noj qab haus huv tuaj yeem pab txhawb cov neeg siv khoom los tawm tswv yim kom muaj kev nyab xeeb dua thiab pob tshab cov khoom noj khoom haus. Yav tom ntej Outlook thiab Kev Tshawb Fawb Cov Lus Qhia: Lub neej yav tom ntej ntawm cov zaub mov-qib titanium dioxide hinges ntawm kev tshawb fawb txuas ntxiv kom nkag siab zoo dua nws cov ntaub ntawv kev nyab xeeb thiab cov txiaj ntsig kev noj qab haus huv. Kev nce qib ntxiv hauv nanotoxicology, kev ntsuam xyuas raug, thiab kev ntsuas kev pheej hmoo yuav yog qhov tseem ceeb rau kev qhia txog kev txiav txim siab txog kev tswj hwm thiab ua kom muaj kev nyab xeeb ntawm kev siv titanium dioxide hauv kev siv zaub mov. Tsis tas li ntawd, kev tshawb fawb rau lwm cov tshuaj ntxuav hniav dawb thiab opacifiers tuav cov lus cog tseg rau kev daws cov kev txhawj xeeb ntawm cov neeg siv khoom thiab tsav kev tsim kho tshiab hauv kev lag luam khoom noj. Xaus: Khoom noj khoom haus-qib titanium dioxide plays lub luag haujlwm tseem ceeb hauv kev lag luam khoom noj khoom haus ua tus neeg sawv cev dawb thiab opacifier, txhim kho qhov pom kev pom thiab kev ntxhib los mos ntawm ntau yam khoom noj khoom haus. Txawm li cas los xij, kev txhawj xeeb txog nws txoj kev nyab xeeb, tshwj xeeb tshaj yog nyob rau hauv daim ntawv nanoparticle, tau ua rau muaj kev soj ntsuam xyuas thiab kev tshawb fawb txuas ntxiv mus. Raws li peb txuas ntxiv tshawb fawb txog kev nyab xeeb thiab kev ua tau zoo ntawm cov zaub mov-qib titanium dioxide, nws yog ib qho tseem ceeb uas yuav tsum tau saib xyuas kev nyab xeeb ntawm cov neeg siv khoom, pob tshab, thiab kev tsim kho tshiab hauv cov khoom noj khoom haus.$

Thaum titanium dioxide raug suav hais tias muaj kev nyab xeeb rau kev noj los ntawm cov cai tswj hwm xws li US Food and Drug Administration (FDA) thiab European Food Safety Authority (EFSA) thaum siv nyob rau hauv cov kev txwv, kev txhawj xeeb tau tshwm sim txog nws cov txiaj ntsig kev noj qab haus huv, tshwj xeeb hauv nanoparticle. daim ntawv.

Nov yog qee cov ntsiab lus tseem ceeb los xav txog:

Particle Loj: Titanium dioxide tuaj yeem muaj nyob hauv daim ntawv nanoparticle, uas yog hais txog cov khoom nrog qhov ntev ntawm nanometer nplai (1-100 nanometers). Nanoparticles tuaj yeem nthuav tawm cov khoom sib txawv piv rau cov khoom loj dua, suav nrog thaj tsam ntawm thaj chaw thiab kev ua haujlwm. Qee cov kev tshawb fawb qhia tias nanoscale titanium dioxide hais tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv, xws li oxidative kev nyuaj siab thiab mob, tshwj xeeb tshaj yog thaum noj ntau heev.
Kev Tshawb Fawb Txog Kev Noj Qab Haus Huv: Kev tshawb fawb txog kev nyab xeeb ntawm titanium dioxide nanoparticles hauv cov zaub mov tseem tab tom ua, nrog cov kev tshawb pom tsis sib haum los ntawm ntau yam kev tshawb fawb. Txawm hais tias qee qhov kev tshawb fawb tau ua rau muaj kev txhawj xeeb txog qhov muaj feem cuam tshuam rau cov kab mob hauv plab hnyuv thiab kev noj qab haus huv hauv lub cev, lwm tus tau pom tias tsis muaj kev phom sij tseem ceeb hauv cov xwm txheej tshwm sim tiag tiag. Kev tshawb fawb ntxiv yog xav tau kom nkag siab txog qhov cuam tshuam rau kev noj qab haus huv mus ntev ntawm kev noj zaub mov uas muaj titanium dioxide nanoparticles.
Kev Tswj Xyuas Kev Tswj Xyuas: Cov koom haum tswj hwm, xws li FDA hauv Tebchaws Meskas thiab EFSA hauv European Union, tau soj ntsuam kev nyab xeeb ntawm titanium dioxide ua cov khoom noj ntxiv raws li cov pov thawj tshawb fawb muaj. Cov kev cai tam sim no qhia txog kev txwv kev noj haus txhua hnub rau titanium dioxide ua cov khoom noj ntxiv, txhawm rau ua kom nws muaj kev nyab xeeb rau cov neeg siv khoom. Txawm li cas los xij, cov koom haum tswj xyuas txuas ntxiv soj ntsuam cov kev tshawb fawb tshiab thiab tuaj yeem hloov kho kev ntsuas kev nyab xeeb raws li.
Kev soj ntsuam kev pheej hmoo: Kev nyab xeeb ntawm titanium dioxide nyob rau hauv cov zaub mov yog nyob ntawm cov yam ntxwv xws li qhov loj me, qib raug, thiab kev raug tus kheej. Txawm hais tias cov neeg feem coob tsis zoo li yuav muaj kev cuam tshuam tsis zoo los ntawm kev noj cov zaub mov uas muaj titanium dioxide nyob rau hauv cov kev cai txwv, cov tib neeg uas muaj kev rhiab heev lossis kev noj qab haus huv tej zaum yuav xaiv kom tsis txhob noj zaub mov nrog titanium dioxide ntxiv raws li kev ceev faj.

Hauv cov ntsiab lus, titanium dioxide tau tso cai ua zaub mov ntxiv hauv ntau lub tebchaws thiab feem ntau suav tias muaj kev nyab xeeb rau kev noj tsis pub dhau txoj cai txwv. Txawm li cas los xij, muaj kev txhawj xeeb txog qhov muaj feem cuam tshuam txog kev noj qab haus huv ntawm titanium dioxide nanoparticles, tshwj xeeb tshaj yog thaum noj ntau dhau lub sijhawm ntev. Kev tshawb fawb txuas ntxiv, daim ntawv lo pob tshab, thiab kev saib xyuas kev tswj hwm yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb ntawm titanium dioxide hauv cov zaub mov thiab hais txog kev txhawj xeeb ntawm cov neeg siv khoom.

Post lub sij hawm: Mar-02-2024