labarai

Titanium dioxide (TiO2) ya kasance mafi dacewa farin launi don samun fari da ikon ɓoyewa a cikin sutura, tawada da robobi.Wannan shi ne saboda yana da babban ma'anar refractive sosai kuma baya ɗaukar haske mai gani.Hakanan ana samun TiO2 a hankali azaman barbashi tare da girman daidai (d ≈ 280 nm) da siffar da ta dace (fiye ko ƙasa da sikeli) da kuma tare da nau'ikan jiyya iri-iri.

Duk da haka, pigment yana da tsada, musamman ma lokacin da ake amfani da farashin girma na tsarin.Kuma, akwai ko da yaushe ya rage bukatar ci gaba da cikakken hujja dabarun don samun mafi kyaun sakamako cikin sharuddan kudin / ayyuka rabo, watsawa yadda ya dace, watsawa ... yayin amfani da shi a shafi formulations.Shin kuna nema iri ɗaya?

Bincika cikakken ilimin TiO2 pigment, ingantaccen watsawa, ingantawa, zaɓi, da dai sauransu don cimma mafi kyawun ƙarfin launi mai kyau da ikon ɓoyewa a cikin ƙirar ku.

Duk Game da Titanium Dioxide Pigment

Titanium dioxide (TiO2) shine farin pigment da ake amfani dashi don ba da fari da ikon ɓoyewa, wanda kuma ake kira opacity, zuwa sutura, tawada, da robobi.Dalilin haka ya kasu kashi biyu:
Barbashi oTiO2 na girman daidai yana watsar da haske mai gani, suna da tsayin raƙuman ruwa λ ≈ 380 - 700 nm, yadda ya kamata saboda TiO2 yana da babban maƙasudin refractive
o fari ne saboda baya tsotse hasken da ake iya gani

Alamar tana da tsada, musamman lokacin da ake amfani da ƙimar girma na tsarin.Yawancin kamfanonin fenti da tawada suna siyan albarkatun kasa kowane nauyi kuma suna sayar da samfuran su da girma.Kamar yadda TiO2 yana da ɗan ƙaramin ƙima, ρ ≈ 4 g/cm3, albarkatun ƙasa suna ba da gudummawa sosai ga ƙimar ƙarar tsarin.

Samar da TiO2 Pigment

Ana amfani da ƴan matakai don samar da TiO2 pigment.Ana samun Rutile TiO2 a cikin yanayi.Wannan shi ne saboda tsarin rutile crystal shine tsarin ma'aunin ma'aunin zafi da sanyio na titanium dioxide.A cikin tsarin sinadarai na halitta TiO2 za a iya tsarkake, ta haka samun roba TiO2.Ana iya yin launin launi daga ores, mai arziki a cikin titanium, wanda ake hakowa daga ƙasa.

Ana amfani da hanyoyin sinadarai guda biyu don yin duka rutile da anatase TiO2 pigments.

1.A cikin tsari na sulfate, mai arziki a cikin titanium yana amsawa tare da sulfuric acid, yana ba da TiOSO4.Ana samun TiO2 mai tsabta daga TiOSO4 a matakai da yawa, ta hanyar TiO (OH) 2.Dangane da sinadarai da hanyar da aka zaɓa, ana yin rutile ko anatase titanium dioxide.

2.In da chloride tsari, da danyen titanium-arzikin farawa abu da aka tsarkake ta hanyar maida titanium zuwa titanium tetrachloride (TiCl4) ta amfani da chlorine gas (Cl2).Itanium tetrachloride tana da iskar oxygen a babban zafin jiki, yana ba da rutile titanium dioxide.Anatase TiO2 ba a yin ta ta hanyar chloride tsari.

A cikin duka matakai guda biyu, ana daidaita girman ɓangarorin pigment da kuma bayan jiyya ta hanyar daidaita matakan ƙarshe a cikin hanyar sinadarai.