Titanium dioxide (TiO2) chinhu chakakosha chemakemikari chigadzirwa, chine mashandisirwo akakosha mukuputira, ingi, kugadzira mapepa, rabha repurasitiki, kemikari fiber, ceramics uye mamwe maindasitiri. Titanium dioxide (Zita reChirungu: titanium dioxide) ivara jena rine chikamu chikuru titanium dioxide (TiO2). Zita resainzi ndiro titanium dioxide (titanium dioxide), uye mamorekuru fomula ndiTiO2. Ikomboni yepolycrystalline iyo zvidimbu zvinogara zvakarongwa uye zvine lattice chimiro. Hukama hwetitanium dioxide ndiyo idiki. Nzira yekugadzira titanium dioxide ine nzira mbiri dzekuita: sulfuric acid nzira uye chlorination nzira.
Main features:
1) Relative density
Pakati pezvinowanzo shandiswa chena pigment, hukama hwehukama hwetitanium dioxide ndiyo idiki. Pakati pemavara machena emhando imwechete, nzvimbo yetitanium dioxide ndiyo yakakura uye pigment vhoriyamu ndiyo yakakura.
2) Kunyunguduka uye nzvimbo yekubikira
Sezvo rudzi rweanatase ruchichinja kuita rutile rudzi pakupisa kwakanyanya, panonyungudika uye nzvimbo yekubikira yeanatase titanium dioxide haipo. Chete rutile titanium dioxide ine nzvimbo yekunyungudika uye nzvimbo yekuvira. Nzvimbo yakanyunguduka ye rutile titanium dioxide ndeye 1850 ° C, nzvimbo inonyunguduka mumhepo ndeye (1830 ± 15) ° C, uye nzvimbo yekunyunguduka muokisijeni-yakapfuma ndeye 1879 ° C. Nzvimbo yekunyunguduka inoenderana nekuchena kwetitanium dioxide. . Nzvimbo yekuvira yerutile titanium dioxide iri (3200±300)°C, uye titanium dioxide inoshanduka zvishoma pakupisa uku.
3) Dielectric nguva dzose
Titanium dioxide ine zvinhu zvemagetsi zvakanakisa nekuda kweiyo yakakwira dielectric kugara. Paunenge uchitarisa zvimwe zvemuviri zvimiro zvetitanium dioxide, iyo crystallographic inotungamira yetitanium dioxide makristasi inofanirwa kutariswa. Iyo dielectric nguva dzose yeanatase titanium dioxide yakaderera, 48 chete.
4) Conductivity
Titanium dioxide ine semiconductor zvimiro, conductivity yayo inowedzera nekukurumidza nekushisa, uye zvakare inonzwa zvakanyanya kune kushomeka kweokisijeni. Iyo dielectric inogara uye semiconductor zvimiro zverutile titanium dioxide zvakakosha kuindasitiri yemagetsi, uye zvivakwa izvi zvinogona kushandiswa kugadzira zvinhu zvemagetsi zvakaita seceramic capacitors.
5) Kuoma
Maererano nechiyero chekuoma kweMohs, rutile titanium dioxide ndeye 6-6.5, uye anatase titanium dioxide ndeye 5.5-6.0. Nokudaro, mukuparara kwemakemikari fiber, rudzi rweanatase runoshandiswa kudzivirira kupfeka kwemaburi e spinneret.
6) Hygroscopicity
Kunyange zvazvo titanium dioxide iri hydrophilic, hygroscopicity yayo haina kusimba zvakanyanya, uye rudzi rwerutile iduku kudarika rudzi rweanatase. Iyo hygroscopicity yetitanium dioxide ine humwe hukama nehukuru hwenzvimbo yayo. Yakakura nzvimbo yepamusoro uye yakakwira hygroscopicity zvakare ine chekuita nekurapa kwepamusoro uye zvivakwa.
7) Kugadzikana kwekushisa
Titanium dioxide chinhu chine kunaka kwekudziya kwekushisa.
8) Granularity
Kugovera saizi yetitanium dioxide indekisi yakazara, iyo inokanganisa zvakanyanya kuita kwetitanium dioxide pigments uye kuita kwechigadzirwa application. Naizvozvo, nhaurirano yesimba rekuvhara uye dispersibility inogona kuongororwa zvakananga kubva kune particle size kugovera.
Izvo zvinhu zvinokanganisa kugoverwa kwesaizi yetitanium dioxide yakaoma. Yekutanga saizi yepakutanga particle size yehydrolysis. Nekudzora nekugadzirisa iyo hydrolysis process mamiriro, iyo yekutanga particle size iri mukati meimwe siyana. Yechipiri ndiyo tembiricha yecalcination. Munguva yekuverengerwa kwemetatitanic acid, zvimedu zvinopinda nguva yekushandurwa kwekristaro uye nguva yekukura, uye tembiricha yakakodzera inodzorwa kuti iite zvidimbu zvekukura mukati mehumwe huwandu. Nhanho yekupedzisira ndeye pulverization yechigadzirwa. Kazhinji, kugadziridzwa kweRaymond mill uye kugadziridzwa kweanalyzer kumhanya kunoshandiswa kudzora kunaka kwe pulverization. Panguva imwecheteyo, mimwe midziyo yekupuruzira inogona kushandiswa, yakadai se: high-speed pulverizer, jet pulverizer uye sando mills.
Nguva yekutumira: Jul-28-2023