Puas yog Titanium Dioxide muaj kev nyab xeeb hauv cov tshuaj pleev ib ce?
Raws li cov khoom siv dav siv hauv cov tshuaj pleev ib ce, kev nyab xeeb ntawm titanium dioxide yeej ib txwm ua kom pom tseeb ntawm cov neeg siv khoom thiab cov kws tshaj lij kev lag luam. Kab lus no yuav tham txog cov khoom tseem ceeb ntawm titanium dioxide, nws daim ntawv thov hauv cov tshuaj pleev ib ce, kev tshawb fawb txog kev nyab xeeb, thiab cov lus pom zoo ntawm cov neeg siv khoom, muab kev pom zoo rau koj.
I.Introduction to the basic properties of titanium dioxide
Titanium dioxide yog ib qho inorganic compound nrog lub siab refractive index thiab zoo tshuaj stability. Nws yog dav nyob rau hauv cov xwm, feem ntau nyob rau hauv daim ntawv ntawm cov zaub mov, xws li rutile, brookite, ntse ore, thiab lwm yam, thiab muaj affinity zoo rau tib neeg daim tawv nqaij.
II.Kev siv titanium dioxide hauv tshuaj pleev ib ce
Titanium dioxide yog siv los ua tshuaj pleev thaiv hnub hauv cov tshuaj pleev ib ce kom nqus tau cov kab hluav taws xob ultraviolet thiab tiv thaiv lawv los ntawm kev nkag mus rau hauv daim tawv nqaij. Txawm li cas los xij, thaum siv ntau dhau, cov khoom titanium dioxide tuaj yeem txhaws qhov pores, ua rau cov stratum corneum thicken, uas cuam tshuam rau daim tawv nqaij ua pa thiab noo noo, ua rau muaj teeb meem ntawm daim tawv nqaij. Tsis tas li ntawd, kev siv titanium dioxide mus ntev thiab loj tuaj yeem ua rau muaj kev tsis haum tshuaj xws li hu rau dermatitis thiab urticaria. Yog li ntawd, txhawm rau ua kom cov tawv nqaij noj qab haus huv, nws raug nquahu kom siv cov khoom uas muaj titanium dioxide nyob rau hauv nruab nrab thiab xyuam xim rau cov tawv nqaij hloov.
III.Kev tshawb fawb txog kev nyab xeeb ntawm titanium dioxide
1.Nyob rau xyoo 2006, Lub Chaw Haujlwm Saib Xyuas Kev Tshawb Fawb Thoob Ntiaj Teb ntawm Cancer tau faib cov titanium dioxide (los ntawm kev nqus pa) raws li Class 2B carcinogen. Txoj hauv kev tseem ceeb ntawm kev raug titanium dioxide rau cov pej xeem yog kev nqus pa, qhov ncauj thiab daim tawv nqaij, ntawm qhov ncauj qhov ncauj yog txoj hauv kev nthuav dav hauv cov zaub mov. E171 yog sib xyaw ntawm micron hais thiab nanoparticles (NPs), muaj txog li 43% nano-titanium dioxide (nano-TiO2).
2.Nano-titanium dioxide tuaj yeem nkag mus rau hauv cov ntshav ncig ntawm qhov ncauj thiab tau koom nrog ntau yam txheej txheem physiological metabolic, thiab nws txoj kev nyab xeeb tau txais kev saib xyuas dav. Tam sim no, feem ntau ntawm cov ntaub ntawv tsom mus rau kev tshawb fawb toxicity ntawm industrial-qib titanium dioxide, thiab kev soj ntsuam kev pheej hmoo ntawm cov zaub mov-qib titanium dioxide tseem tsis muaj, yog li xav tau kev tshawb fawb ntxiv.
IV.Kev saib xyuas ntawm titanium dioxide
Thaum Lub Rau Hli 22, 2022, Pawg Neeg Saib Xyuas Kev Noj Qab Haus Huv thiab Khoom Noj Khoom Noj Hauv Tebchaws Europe tau thov kev xav txog kev nyab xeeb ntawm titanium dioxide (TiO2) siv hauv tshuaj pleev ib ce. Cov ntsiab lus tseem ceeb suav nrog:
1.TiO2 microcrystalline daim ntawv yog tam sim no siv los ua cov xim dawb los yog tshuaj pleev thaiv hnub hauv cov tshuaj pleev ib ce, kev tu tawv nqaij, plaub hau thiab cov khoom ntawm qhov ncauj. Muab hais tias nws raug cais raws li Qeb 2 carcinogen nkaus xwb los ntawm kev nqus pa, Pawg Neeg Saib Xyuas Kev Nyab Xeeb Kev Noj Qab Haus Huv (SCCS) tau rov ntsuam xyuas TiO2 thiab txwv tsis pub siv cov tshuaj pleev ib ce ntxiv.
2.Lub European Commission xav kom SCCS rov ntsuam xyuas qhov kev nyab xeeb ntawm TiO2, tsom rau genotoxicity thiab raug los ntawm kev nqus pa thiab qhov ncauj (duab, di ncauj, tshuaj txhuam hniav, hmoov xoob, tshuaj tsuag plaub hau), vim tias tam sim no muaj pov thawj scientific txhawb nqa tag nrho. tsis muaj qhov nqus ntawm daim tawv nqaij ntawm TiO2 hais.
V. Cov lus pom zoo rau cov neeg siv khoom siv titanium dioxide
1.Cov neeg siv khoom yuav tsum xaiv cov tshuaj pleev ib ce uas muaj ntawv pov thawj los ua kom cov khoom muaj kev nyab xeeb.
2.Raws li tus kheej ntawm daim tawv nqaij thiab kev xav tau, siv cov tshuaj pleev ib ce uas muaj titanium dioxide kom tsim nyog thiab tsis txhob siv ntau dhau.
Ntawm qhov tod tes, kev siv titanium dioxide hauv cov tshuaj pleev ib ce muaj kev nyab xeeb, thiab nws txoj kev nyab xeeb tau txais kev txhawb nqa los ntawm kev tshawb fawb thiab kev tswj xyuas. Cov neeg siv khoom tuaj yeem siv cov tshuaj pleev ib ce uas muaj cov titanium dioxide nrog kev ntseeg siab ntau dua los ntawm kev nkag siab txog nws lub luag haujlwm thiab kev nyab xeeb. Raws li kev siv thev naus laus zis thiab kev tswj hwm kev txhim kho, peb cia siab tias titanium dioxide yuav ua lub luag haujlwm ntau dua hauv kev lag luam tshuaj pleev ib ce yav tom ntej thaum ua kom muaj kev nyab xeeb rau cov neeg siv khoom.
