iindaba

I-Titanium dioxide (i-TiO2) yeyona ndawo ifanelekileyo yebala elimhlophe ukufumana ubumhlophe kunye namandla okufihla kwiingubo, ii-inki kunye neeplastiki.Oku kungenxa yokuba inesalathiso se-refractive esiphezulu kakhulu kwaye ayikufumani ukukhanya okubonakalayo.I-TiO2 ifumaneka ngokulula njengamasuntswana anobukhulu obufanelekileyo (d ≈ 280 nm) kunye nemilo echanekileyo (ngaphezulu okanye ngaphantsi kwe-spherical) kunye neentlobo ezahlukeneyo zonyango.

Nangona kunjalo, i-pigment iyabiza, ngakumbi xa kusetyenziswa amaxabiso omthamo weenkqubo.Kwaye, kuhlala kukho imfuneko yokuphuhlisa isicwangciso esipheleleyo sokufumana iziphumo ezilungileyo ngokwexabiso / umlinganiselo wokusebenza, ukusabalalisa ukusebenza kakuhle, ukusabalalisa ... ngelixa uyisebenzisa kwi-coating formulations.Ngaba ukhangela okufanayo?

Phonononga ulwazi oluneenkcukacha lwe-TiO2 pigment, ukusebenza kakuhle kwayo, ukwenziwa ngcono, ukukhetha, njl.

Konke malunga neTitanium Dioxide Pigment

I-Titanium dioxide (TiO2) yibala elimhlophe elisetyenziselwa ukunika ubumhlophe kunye namandla okufihla, okukwabizwa ngokuba yi-opacity, kwi-coatings, i-inki kunye neeplastiki.Isizathu soku sintlu-mbini:
Amasuntswana oTiO2 obungakanani obufanelekileyo asasaza ukukhanya okubonakalayo, enobude obungangelanga λ ≈ 380 - 700 nm, ngokufanelekileyo kuba iTiO2 inesalathisi esiphezulu
o Imhlophe kuba ayikufumani ukukhanya okubonakalayo

I-pigment iyabiza, ngakumbi xa kusetyenziswa amaxabiso omthamo weenkqubo.Uninzi lweenkampani zepeyinti kunye ne-inki zithenga imathiriyeli ekrwada ngesisindo ngasinye kwaye zithengise iimveliso zazo ngomthamo.Njengoko i-TiO2 inoxinano oluphezulu ngokwentelekiso, ρ ≈ 4 g/cm3, imathiriyeli ekrwada inegalelo elikhulu kumthamo wexabiso lenkqubo.

Ukuveliswa kweTiO2 Pigment

Iinkqubo ezimbalwa zisetyenziselwa ukuvelisa i-TiO2 pigment.I-Rutile TiO2 ifumaneka kwindalo.Oku kungenxa yokuba i-rutile crystal structure yindlela ezinzileyo ye-thermodynamically ye-titanium dioxide.Kwiinkqubo zemichiza yendalo ye-TiO2 inokucocwa, ngaloo ndlela ifumana i-TiO2 yokwenziwa.I-pigment inokwenziwa ngeentsimbi, ezityebileyo kwi-titanium, ezembiwa emhlabeni.

Iindlela ezimbini zeekhemikhali zisetyenziselwa ukwenza zombini i-rutile kunye ne-anatase i-TiO2 pigments.

I-1.Kwinkqubo ye-sulfate, i-titanium-rich ore iphendulwa nge-asidi ye-sulfuric, inika i-TiOSO4.I-TiO2 enyulu ifumaneka kwi-TiOSO4 ngamanyathelo amaninzi, ihamba nge-TiO(OH)2.Ngokuxhomekeke kwikhemistri kunye nendlela ekhethiweyo, i-rutile okanye i-anatase titanium dioxide yenziwe.

2.Kwinkqubo ye-chloride, i-titanium-rich rich starting material ihlanjululwa ngokuguqula i-titanium kwi-titanium tetrachloride (TiCl4) ngokusebenzisa igesi ye-chlorine (Cl2).I-titanium tetrachloride iye ifakwe kwi-oxidized kwiqondo lokushisa eliphezulu, inika i-rutile ecocekileyo titanium dioxide.I-Anatase TiO2 ayenziwanga ngenkqubo yekloridi.

Kuzo zombini iinkqubo, ubukhulu beengqungquthela ze-pigment kunye ne-post-post-treatment kulungelelaniswa ngokulungelelanisa amanyathelo okugqibela kwindlela yeekhemikhali.