Titanium dioxide (TiO2) wani muhimmin samfurin sinadarai ne na inorganic, wanda ke da amfani mai mahimmanci a cikin sutura, tawada, yin takarda, robar filastik, fiber na sinadaran, yumbu da sauran masana'antu.Titanium dioxide (sunan turanci: titanium dioxide) farar launi ne wanda babban sinadarin titanium dioxide (TiO2).Sunan kimiyya shine titanium dioxide (titanium dioxide), kuma tsarin kwayoyin halitta shine TiO2.Yana da wani fili na polycrystalline wanda barbashi ana shirya su akai-akai kuma suna da tsarin lattice.Matsakaicin dangi na titanium dioxide shine mafi ƙanƙanta.Tsarin samar da titanium dioxide yana da hanyoyi guda biyu: hanyar sulfuric acid da hanyar chlorination.
Babban fasali:
1) Yawan dangi
Daga cikin fararen pigments da aka saba amfani da su, ƙarancin dangi na titanium dioxide shine mafi ƙanƙanta.Daga cikin fararen fararen launi iri ɗaya, girman yanki na titanium dioxide shine mafi girma kuma ƙarar launi shine mafi girma.
2) Wurin narkewa da wurin tafasa
Tun da nau'in anatase yana canzawa zuwa nau'in rutile a babban zafin jiki, wurin narkewa da wurin tafasa na anatase titanium dioxide ba su wanzu.Rutile titanium dioxide kawai yana da wurin narkewa da wurin tafasa.Matsayin narkewar rutile titanium dioxide shine 1850 ° C, wurin narkewa a cikin iska shine (1830 ± 15) ° C, kuma wurin narkewa a cikin wadataccen oxygen shine 1879 ° C. Matsayin narkewa yana da alaƙa da tsabtar titanium dioxide. .Wurin tafasa na rutile titanium dioxide shine (3200± 300) ° C, kuma titanium dioxide yana da ɗan canzawa a wannan babban zafin jiki.
3) Dielectric akai-akai
Titanium dioxide yana da kyawawan kaddarorin lantarki saboda yawan wutar lantarki.Lokacin ƙayyade wasu kaddarorin jiki na titanium dioxide, yakamata a yi la'akari da jagorar crystallographic na lu'ulu'u na titanium dioxide.Dielectric akai-akai na anatase titanium dioxide yana da ɗan ƙaramin ƙarfi, kawai 48.
4) Gudanarwa
Titanium dioxide yana da kaddarorin semiconductor, halayensa yana ƙaruwa da sauri tare da zafin jiki, kuma yana da matukar damuwa ga ƙarancin iskar oxygen.Dielectric akai-akai da semiconductor Properties na rutile titanium dioxide suna da matukar muhimmanci ga masana'antar lantarki, kuma ana iya amfani da waɗannan kaddarorin don samar da kayan lantarki kamar su yumbu capacitors.
5) Tauri
Dangane da sikelin taurin Mohs, rutile titanium dioxide shine 6-6.5, kuma anatase titanium dioxide shine 5.5-6.0.Saboda haka, a cikin ɓarna fiber na sinadarai, ana amfani da nau'in anatase don guje wa lalacewa na ramukan spinneret.
6) Hygroscopicity
Ko da yake titanium dioxide hydrophilic ne, hygroscopicitynsa ba shi da ƙarfi sosai, kuma nau'in rutile ya yi ƙasa da nau'in anatase.Tsarin hygroscopicity na titanium dioxide yana da wata alaƙa da girman girman farfajiyar sa.Large surface area da high hygroscopicity kuma suna da alaka da surface jiyya da kaddarorin.
7) Zaman lafiyar thermal
Titanium dioxide abu ne mai kyau da kwanciyar hankali na thermal.
8) Girman kai
The barbashi size rarraba titanium dioxide ne m index, wanda tsanani rinjayar da yi na titanium dioxide pigments da samfurin aikace-aikace yi.Saboda haka, tattaunawa na rufe iko da dispersibility za a iya kai tsaye nazari daga barbashi size rarraba.
Abubuwan da ke shafar girman girman rabo na titanium dioxide suna da rikitarwa.Na farko shine girman girman asalin barbashi na hydrolysis.Ta hanyar sarrafawa da daidaita yanayin tsari na hydrolysis, girman ƙwayar asali na asali yana cikin wani yanki.Na biyu shine zafin jiki na calcination.A lokacin calcination na metatitanic acid, da barbashi sha wani crystal canji lokaci da wani girma lokaci, da kuma dace zafin jiki da ake sarrafa don yin girma barbashi a cikin wani kewayon.Mataki na ƙarshe shine ɓarkewar samfurin.Yawancin lokaci, ana amfani da gyare-gyaren injin niƙa na Raymond da daidaitawar saurin mai nazari don sarrafa ingancin ƙwanƙwasa.A lokaci guda kuma, ana iya amfani da wasu na'urori masu juzu'a, kamar: mai saurin gudu, jet pulverizer da injin niƙa guduma.
Lokacin aikawa: Yuli-28-2023