Titanium dioxide ke eng?

Titanium dioxide, motsoako o teng hohle o fumanoang lihlahisoa tse ngata-ngata, o kenyelletsa boitsebiso bo nang le likarolo tse ngata.Ka har'a sebopeho sa eona sa limolek'hule ho na le pale ea ho feto-fetoha ha maemo, ho ama liindasteri ho tloha ho lipente le lipolasetiki ho ea ho lijo le litlolo.Phuputsong ena e batsi, re batlisisa ka botebo tšimoloho, thepa, ts'ebeliso le litlamorao tsa titanium dioxide Tio2, e fanang ka leseli mabapi le bohlokoa ba eona maemong a indasteri le a letsatsi le letsatsi.

$Lijo-Kereiti ea Titanium Dioxide: Thepa, Likopo, le Litlhokomelo tsa Tšireletseho Selelekela: Titanium dioxide (TiO2) ke liminerale tse hlahang ka tlhaho tse 'nileng tsa sebelisoa haholo e le pigment e tšoeu lits'ebetsong tse fapaneng tsa indasteri bakeng sa khanya ea eona e ntle haholo le ho khanya.Lilemong tsa morao tjena, titanium dioxide e boetse e kenelletse indastering ea lijo e le motsoako oa lijo, o tsejoang e le titanium dioxide ea boemo ba lijo.Moqoqong ona, re tla hlahloba thepa, lits'ebetso, lintlha tsa polokeho, le likarolo tsa taolo ea titanium dioxide ea boemo ba lijo.Thepa ea Titanium Dioxide ea Kereiti ea Lijo: Titanium dioxide ea boemo ba lijo e arolelana thepa e ngata le molekane oa eona oa indasteri, empa ka lintlha tse ikhethileng mabapi le polokeho ea lijo.E fumaneha ka mokhoa oa phofo e ntle, e tšoeu 'me e tsebahala ka index ea eona e phahameng ea refractive, e fanang ka khanya e ntle haholo le khanya.Boholo ba karoloana ea titanium dioxide ea boemo ba lijo bo laoloa ka hloko ho etsa bonnete ba ho hasana ka mokhoa o ts'oanang le tšusumetso e fokolang ho sebopeho kapa tatso ea lihlahisoa tsa lijo.Ho feta moo, titanium dioxide ea boemo ba lijo hangata e kenngoa ts'ebetsong e matla ea tlhoekiso ho tlosa litšila le litšila, ho netefatsa hore e loketse ho sebelisoa ha ho sebelisoa lijo.Mekhoa ea Tlhahiso: Titanium dioxide ea boemo ba lijo e ka hlahisoa ka mekhoa ea tlhaho le ea maiketsetso.Titanium dioxide ea tlhaho e fumanoa ho liminerale, joalo ka rutile le ilmenite, ka mekhoa e kang ho ntša le ho hloekisa.Synthetic titanium dioxide, ka lehlakoreng le leng, e etsoa ka mekhoa ea lik'hemik'hale, hangata e kenyelletsang karabelo ea titanium tetrachloride ka oksijene kapa sulfur dioxide mochesong o phahameng.Ho sa tsotelehe mokhoa oa tlhahiso, mehato ea taolo ea boleng e bohlokoa ho netefatsa hore titanium dioxide ea boemo ba lijo e kopana le bohloeki bo thata le litekanyetso tsa polokeho.Likopo ho Indasteri ea Lijo: Titanium dioxide ea boemo ba lijo e sebetsa haholo-holo e le ntho e soeufatsang le e opacifier mefuteng e mengata ea lihlahisoa tsa lijo.E sebelisoa hangata ho li-confectionery, lebese, lihlahisoa tse halikiloeng, le mefuta e meng ea lijo ho ntlafatsa ponahalo le sebopeho sa lijo.Ka mohlala, titanium dioxide e eketsoa lipompong ho fumana mebala e khanyang le lihlahisoa tsa lebese tse kang yogurt le ice cream ho ntlafatsa ponahalo ea tsona le ho ba monate.Linthong tse halikiloeng, titanium dioxide e thusa ho hlahisa ponahalo e khanyang, e ts'oanang lihlahisoa tse kang serame le metsoako ea kuku.Maemo a Taolo le Litlhokomelo tsa Tšireletseho: Tšireletseho ea titanium dioxide ea boemo ba lijo ke taba eo ho phehisanoang khang ka eona le ho hlahlobisisoa ka molao.Mekhatlo e laolang lefats'e ka bophara, ho kenyeletsoa Tsamaiso ea Lijo le Lithethefatsi (FDA) United States le European Food Safety Authority (EFSA) e Europe, e hlahlobile polokeho ea titanium dioxide e le kenyelletso ea lijo.Leha titanium dioxide ka kakaretso e amoheloa e le e bolokehileng (GRAS) ha e sebelisoa ka har'a meeli e boletsoeng, ho phahamisitsoe matšoenyeho mabapi le likotsi tse ka bang teng tsa bophelo bo botle tse amanang le tšebeliso ea eona, haholo ka sebopeho sa nanoparticle.Liphello Tse ka 'nang Tsa E-ba Tsa Bophelo bo Botle: Liphuputso li bontšitse hore titanium dioxide nanoparticles, e nyenyane ho feta li-nanometer tse 100 ka boholo, e ka ba le monyetla oa ho phunyeletsa mekoallo ea likokoana-hloko le ho bokellana ka har'a lisele, e leng ho tsosang matšoenyeho mabapi le polokeho ea tsona.Liphuputso tsa liphoofolo li bontšitse hore tekanyo e phahameng ea titanium dioxide nanoparticles e ka baka liphello tse mpe sebeteng, liphio le litho tse ling.Ho feta moo, ho na le bopaki bo bontšang hore nanoparticles ea titanium dioxide e ka baka khatello ea oxidative le ho ruruha ka liseleng, e leng se ka tlatsetsang ho nts'etsopele ea mafu a sa foleng.Maano a Phokotso le Mekhoa e Meng: Ho sebetsana le matšoenyeho mabapi le polokeho ea titanium dioxide ea boemo ba lijo, boiteko bo ntse bo tsoela pele ho hlahisa lisebelisoa tse ling tse soeufatsang le li-opacifiers tse ka fihlelang litlamorao tse tšoanang ntle le likotsi tse ka bang teng tsa bophelo bo botle.Baetsi ba bang ba ntse ba hlahloba mekhoa e meng ea tlhaho, joalo ka calcium carbonate le starch ea raese, e le sebaka sa titanium dioxide mefuteng e meng ea lijo.Ntle le moo, tsoelo-pele ea nanotechnology le boenjineri ba likaroloana e ka fana ka menyetla ea ho fokotsa likotsi tse amanang le titanium dioxide nanoparticles ka moralo o ntlafalitsoeng oa likaroloana le phetoho ea bokaholimo.Tlhokomeliso ea Bareki le ho Ngola: Ho ngolla pepeneneng le thuto ea bareki li bohlokoa bakeng sa ho tsebisa bareki ka boteng ba lisebelisoa tsa lijo tse kang titanium dioxide lihlahisoa tsa lijo.Ho ngola ka mokhoa o hlakileng le o nepahetseng ho ka thusa bareki ho etsa liqeto ba e-na le tsebo le ho qoba lihlahisoa tse nang le li-additives tseo ba ka 'nang ba e-ba le maikutlo kapa lintho tse ba tšoenyang.Ho feta moo, tlhokomeliso e ntseng e eketseha ea litlatsetso tsa lijo le litlamorao tsa tsona tsa bophelo bo botle li ka matlafatsa bareki ho buella liketane tsa phepelo ea lijo tse sireletsehileng le tse pepeneneng.Maikutlo a Bokamoso le Litaelo tsa Lipatlisiso: Bokamoso ba titanium dioxide ea boemo ba lijo bo itšetlehile ka boiteko bo tsoelang pele ba lipatlisiso ho utloisisa boemo ba eona ba polokeho le liphello tse ka bang teng tsa bophelo bo botle.Khatelo-pele e tsoelang pele ho nanotoxicology, tlhahlobo ea ho pepeseha, le tlhahlobo ea kotsi e tla ba bohlokoa bakeng sa ho tsebisa liqeto tsa taolo le ho netefatsa ts'ebeliso e bolokehileng ea titanium dioxide lits'ebetsong tsa lijo.Ntle le moo, lipatlisiso mabapi le lisebelisoa tse ling tse soeufatsang le li-opacifiers li na le ts'episo ea ho rarolla mathata a bareki le ho nts'etsapele boqapi indastering ea lijo.Qetello: Titanium dioxide ea boemo ba lijo e bapala karolo ea bohlokoa indastering ea lijo e le ntho e soeufatsang le e opacifier, e matlafatsang ponahalo le sebopeho sa mefuta e mengata ea lihlahisoa tsa lijo.Leha ho le joalo, ho tšoenyeha ka polokeho ea eona, haholo-holo ka mokhoa oa nanoparticle, ho khothalelitse tlhahlobo ea taolo le boiteko bo tsoelang pele ba lipatlisiso.Ha re ntse re tsoela pele ho hlahloba polokeho le katleho ea titanium dioxide ea boemo ba lijo, ho bohlokoa ho etelletsa pele polokeho ea bareki, pepeneneng le popontšong ea phepelo ea lijo.$

Tšimoloho le Sebopeho sa Lik'hemik'hale

Titanium dioxide, e hlalosoang ka foromo ea lik'hemik'hale ea TiO2, ke motsoako o nang le titanium le liathomo tsa oksijene.E fumaneha ka mefuta e mengata ea tlhaho ea liminerale, e tloaelehileng haholo ke rutile, anatase le brookite.Liminerale tsena li rafshoa haholo-holo licheleteng tse fumanoang linaheng tse kang Australia, Afrika Boroa, Canada le Chaena.Titanium dioxide e ka boela ea hlahisoa ka mokhoa oa maiketsetso ka mekhoa e fapaneng ea lik'hemik'hale, ho kenyelletsa le ts'ebetso ea sulfate le ts'ebetso ea chloride, e kenyelletsang ho sebetsana le ores ea titanium ka sulfuric acid kapa chlorine, ka ho latellana.

Sebopeho sa Crystal le Thepa

Boemong ba athomo, titanium dioxide e nka sebopeho sa kristale, ka athomo e 'ngoe le e 'ngoe ea titanium e pota-potiloeng ke liathomo tse tšeletseng tsa oksijene ka tlhophiso ea octahedral.Letlapa lena la kristale le fana ka thepa e ikhethang ea 'mele le ea lik'hemik'hale ho motsoako.Titanium dioxide e tumme ka ho benya ha eona ho ikhethang le ho se bone ha eona, e leng ho etsang hore e be mmala o mosoeu o loketseng bakeng sa lisebelisoa tse ngata tse fapaneng.Index ea eona ea refractive, e leng tekanyo ea hore na khanya e kae e kobehileng ha e feta har'a ntho, e har'a ntho e phahameng ka ho fetisisa ho feta ntho leha e le efe e tsejoang, e tlatsetsang litšobotsing tsa eona tse khanyang.

Ho feta moo, titanium dioxide e bontša botsitso bo tsotehang le ho hanyetsa ho senyeha, esita le tlas'a maemo a thata a tikoloho.Tšobotsi ena e etsa hore e tšoanelehe bakeng sa lits'ebetso tsa kantle tse joalo ka meaho ea meralo le lithapo tsa likoloi, moo ho tšoarella ho leng bohlokoa haholo.Ho feta moo, titanium dioxide e na le thepa e ntle haholo ea ho thibela UV, e etsang hore e be motsoako o tloaelehileng oa litlolo tse sireletsang letsatsi le tse ling tse sireletsang.

Likopo ho Indasteri

Ho tenyetseha ha titanium dioxide ho bonahala liindastering tse fapaneng, moo e sebetsang e le motsoako oa mantlha lihlahisoa tse ngata.Tabeng ea lipente le lirafshoa, titanium dioxide e sebetsa e le 'mala oa mantlha, e fanang ka bosoeu, ho se bonahale le ho tšoarella ha lipente tsa meralo, lipente tsa likoloi le lirafshoa tsa indasteri.Bokhoni ba eona ba ho hasanya khanya bo tiisa ka katleho mebala e khanyang le tšireletso ea nako e telele khahlanong le boemo ba leholimo le ho bola.

Indastering ea polasetiki, titanium dioxide e sebetsa e le tlatsetso ea bohlokoa bakeng sa ho fihlela mebala e lakatsehang, opacity, le ho hanyetsa UV mefuteng e fapaneng ea polymer.Ka ho hasanya likaroloana tse fatše tsa titanium dioxide ka har'a matrices a polasetiki, bahlahisi ba ka hlahisa lihlahisoa tsa boleng bo phahameng ho tloha ho thepa ea ho paka le thepa ea bareki ho ea ho likarolo tsa likoloi le thepa ea kaho.

Ho feta moo, titanium dioxide e sebelisoa haholo indastering ea pampiri le ea khatiso, moo e ntlafatsang ho khanya, ho se bonahale le ho hatisoa ha lihlahisoa tsa pampiri.Ho kenyelletsoa ha eona lienkeng tsa khatiso ho tiisa litšoantšo le mongolo o hlakileng, o hlakileng, o tlatsetsang boipiletsong ba pono ba limakasine, likoranta, liphutheloana le thepa ea papatso.

Lisebelisoa ho Lihlahisoa tsa Letsatsi le Letsatsi

Ka ntle ho litlhophiso tsa indasteri, titanium dioxide e kenelletse lesela la bophelo ba letsatsi le letsatsi, e hlaha ka bongata ba lihlahisoa tsa bareki le lintho tsa tlhokomelo ea motho.Litlolong, titanium dioxide e sebetsa e le motsoako o sebetsang ka mokhoa o fapaneng ho metheo, phofshoana, lipsticks le litlolo tse sireletsang letlalo letsatsing, moo e fanang ka tšireletso, ho lokisa mebala le tšireletso ea UV ntle le ho koala masoba kapa ho baka ho teneha ha letlalo.Sebopeho sa eona se se nang boikaketsi le bokhoni ba ho thibela mahlaseli a kotsi a UV bo etsa hore e be karolo ea bohlokoa ea litlolo tse sireletsang letsatsi, tse fanang ka tšireletso e sebetsang khahlanong le mahlaseli a kotsi a UVA le UVB.

Ho feta moo, titanium dioxide e bapala karolo ea bohlokoa indastering ea lijo le lino e le ntho e soeufatsang le ho opacifier.E atisa ho sebelisoa lihlahisoa tsa lijo tse kang lipompong, li-confectionery, lihlahisoa tsa lebese, le li-sauces ho matlafatsa ho tsitsa ha mebala, sebopeho le ho se bone.Litlhare, titanium dioxide e sebetsa e le seaparo sa matlapa le li-capsules, e nolofalletsang ho metsa le ho pata litatso tse sa thabiseng kapa monko o monate.

Maikutlo a Tikoloho le Bophelo bo Botle

Le hoja titanium dioxide e tumme ka melemo e mengata ea eona, ho hlahile matšoenyeho mabapi le phello ea eona ea tikoloho le likotsi tse ka 'nang tsa e-ba teng bophelong.Ka sebopeho sa eona sa nanoparticulate, titanium dioxide e bonts'a thepa e ikhethang e fapaneng le ea boholo ba eona.Likaroloana tsa nanoscale titanium dioxide li na le sebaka se ntseng se eketseha le ho sebetsa hape, tse ka ntlafatsang tšebelisano ea tsona ea tlhaho le tikoloho.

Boithuto bo hlahisitse lipotso mabapi le litlamorao tse ka bang teng tsa bophelo bo botle ba ho hema li-nanoparticles tsa titanium dioxide, haholo-holo maemong a mosebetsi joalo ka lits'ebetso tsa tlhahiso le libaka tsa kaho.Le hoja titanium dioxide e hlalosoa e le Ka kakaretso e Lemoheloa e le Sireletsehile (GRAS) ke mekhatlo e laolang hore e sebelisoe lijong le litlolo, lipatlisiso tse tsoelang pele li batla ho hlakisa liphello leha e le life tse ka 'nang tsa e-ba teng tsa nako e telele tsa bophelo bo botle tse amanang le ho pepeseha ho sa foleng.

Ho feta moo, qetello ea tikoloho ea titanium dioxide nanoparticles, haholo-holo tikolohong ea metsing, ke taba ea lipatlisiso tsa mahlale.Matšoenyeho a hlahisitsoe mabapi le ho bokellana ha lintho tse phelang le chefo e ka bang teng ea nanoparticles linthong tse phelang metsing, hammoho le phello ea tsona ho matla a tikoloho le boleng ba metsi.

Moralo oa Taolo le Maemo a Tšireletseho

Ho sebetsana le maemo a ntseng a fetoha a nanotechnology le ho netefatsa ts'ebeliso e bolokehileng ea titanium dioxide le li-nanomaterials tse ling, mekhatlo e laolang lefats'e ka bophara e sebelisitse litataiso le litekanyetso tsa polokeho.Melao ena e akaretsa likarolo tse fapaneng, ho kenyeletsoa ho ngola lihlahisoa, tlhahlobo ea kotsi, meeli ea ho pepeseha mosebetsing, le ho beha leihlo tikoloho.

European Union, li-nanoparticles tsa titanium dioxide tse sebelisoang litlolong li tlameha ho ngoloa joalo 'me li khomarele litlhoko tse tiileng tsa polokeho tse boletsoeng ho Molao oa Litlolo.Ka mokhoa o ts'oanang, Tsamaiso ea Lijo le Lithethefatsi ea United States (FDA) e laola tšebeliso ea titanium dioxide lihlahisoa tsa lijo le litlolo, e hatisa ho netefatsa polokeho le pepeneneng bakeng sa bareki.

Ho feta moo, mekhatlo e laolang e kang Environmental Protection Agency (EPA) e United States le European Chemicals Agency (ECHA) e EU e hlahloba likotsi tsa tikoloho tse hlahisoang ke titanium dioxide le li-nanomaterials tse ling.Ka liteko tse matla le liprothokholo tsa tlhahlobo ea likotsi, mekhatlo ena e ikitlaelletsa ho sireletsa bophelo bo botle ba batho le tikoloho ha e ntse e khothaletsa boqapi le tsoelopele ea mahlale.

Maikutlo a Bokamoso le Mekhoa e Mecha

Ha kutloisiso ea mahlale ea li-nanomaterials e ntse e tsoela pele ho fetoha, boiteko bo tsoelang pele ba lipatlisiso bo batla ho notlolla bokhoni bo felletseng ba titanium dioxide ha ba ntse ba sebetsana le mathata a amanang le polokeho le botsitso.Mekhoa e mecha e joalo ka phetoho ea bokaholimo, ho kopanya ka lisebelisoa tse ling, le mekhoa e laoloang ea ho kopanya e fana ka mekhoa e ts'episang ea ho ntlafatsa ts'ebetso le ho feto-fetoha ha thepa e thehiloeng ho titanium dioxide.

Ho feta moo, tsoelo-pele ea theknoloji ea nanotechnology e na le monyetla oa ho fetola lits'ebetso tse seng li ntse li le teng le ho susumetsa nts'etsopele ea lihlahisoa tsa moloko o tlang ka thepa le ts'ebetso e ikhethileng.Ho tloha ho liphaello tsa eco-friendly le theknoloji e tsoetseng pele ea tlhokomelo ea bophelo ho ea ho litharollo tsa matla a ka nchafatsoang le maano a tokiso ea tšilafalo, titanium dioxide e ikemiselitse ho bapala karolo ea bohlokoa ho bopeng bokamoso ba liindasteri tse fapaneng le matsapa a ts'ebetso ea lefats'e.

Qetello

Qetellong, titanium dioxide e hlaha e le motsoako o fumanehang hohle le oa bohlokoahali o atileng hoo e batlang e le likarolong tsohle tsa bophelo ba kajeno.Ho tloha tšimolohong ea eona e le liminerale tse etsahalang ka tlhaho ho isa lits'ebetsong tsa eona tse ngata indastering, khoebong le lihlahisoa tsa letsatsi le letsatsi, titanium dioxide e kenyelletsa lefa la ho feto-fetoha ha maemo, boqapi le phello ea phetoho.

Le hoja thepa ea eona e ke keng ea lekanngoa e matlafalitse tsoelo-pele ea theknoloji le ho ntlafatsa lihlahisoa tse ngata, boiteko bo tsoelang pele boa hlokahala ho netefatsa ts'ebeliso e nang le boikarabelo le e tsitsitseng ea titanium dioxide ho sa tsotellehe ho fetoha ha maemo a tikoloho le bophelo bo botle.Ka lipatlisiso tse kopanetsoeng, tlhokomelo ea taolo le boqapi ba mahlale a mahlale, bankakarolo ba ka khona ho bona sebaka se rarahaneng sa li-nanomaterials le ho sebelisa matla a felletseng a titanium dioxide ha ba ntse ba sireletsa bophelo ba batho le tikoloho bakeng sa meloko e tlang.

Nako ea poso: Mar-02-2024