Chii chinonzi titanium dioxide?
Chinhu chikuru chetitanium dioxide iTIO2, iyo yakakosha inorganic chemical pigment muchimiro chemuchena wakasimba kana upfu. Haina chepfu, ine kuchena kwepamusoro uye kupenya, uye inoonekwa seyakanakisa pigment chena yekuvandudza kuchena kwezvinhu. Inoshandiswa zvakanyanya mumaindasitiri akadai sekupfeka, mapurasitiki, rabha, bepa, ingi, ceramics, girazi, nezvimwe.
Ⅰ.Titanium dioxide indasitiri chain dhizaini:
(1）Kumusoro kwetitanium dioxide indasitiri chain ine zvinhu zvakabikwa, zvinosanganisira ilmenite, titanium concentrate, rutile, nezvimwe;
(2）Iyo yepakati inoreva titanium dioxide zvigadzirwa.
(3) Iyo yakadzika ndiyo nzvimbo yekushandisa yetitanium dioxide.Titanium dioxide inoshandiswa zvakanyanya munzvimbo dzakasiyana-siyana senge machira, mapurasitiki, mapepa, inki, rabha, nezvimwe.
Ⅱ.Chimiro chekristaro chetitanium dioxide:
Titanium dioxide imhando yepolymorphous compound, iyo ine matatu akajairika makristasi mafomu mune zvakasikwa, anoti anatase, rutile uye brookite.
Zvose rutile uye anatase ndezve tetragonal crystal system, iyo yakagadzikana pasi pekushisa kwemazuva ose; brookite ndeye orthorhombic crystal system, ine isina kugadzikana kristaro chimiro, saka ine shoma inoshanda kukosha muindasitiri parizvino.
Pakati pezvivakwa zvitatu, rutile chikamu ndicho chakanyanya kugadzikana. Anatase phase ichashanduka isingachinjiki kuita rutile phase pamusoro pe900°C, ukuwo brookite phase ichizochinja kuita rutile phase pamusoro pe650°C.
(1) Rutile chikamu titanium dioxide
Mune rutile phase titanium dioxide, maatomu eTi ari pakati pekristaro lattice, uye matanhatu maatomu eokisijeni ari pamakona etitanium-okisijeni octahedron. Octahedron yega yega yakabatana kune gumi yakatenderedza octahedron (kusanganisira masere ekugovana vertices uye maviri ekugova micheto), uye maviri TiO2 mamorekuru anoumba unit cell.
Schematic diagraph yecrystal cell ye rutile phase titanium dioxide (kuruboshwe)
Nzira yekubatanidza yetitanium oxide octahedron (kurudyi)
(2) Anatase chikamu titanium dioxide
Muanatase phase titanium dioxide, imwe neimwe titanium-oxygen octahedron yakabatana ne8 yakatenderedza octahedron (4 kugovera mipendero uye mana ekugovana vertices), uye mana TiO2 mamorekuru anoumba unit cell.
Schematic diagraph yecrystal cell ye rutile phase titanium dioxide (kuruboshwe)
Nzira yekubatanidza yetitanium oxide octahedron (kurudyi)
Ⅲ.Kugadzirira Nzira dzeTitanium Dioxide:
Nzira yekugadzira titanium dioxide inonyanya kusanganisira sulfuric acid process uye chlorination process.
(1) sulfuric acid maitiro
Iyo sulfuric acid process yetitanium dioxide kugadzirwa inosanganisira acidolysis reaction yetitanium iron powder ine concentrated sulfuric acid kuti ibudise titanium sulfate, iyo inobva yaitwa hydrolyzed kugadzira metatitanic acid. Mushure mekuverenga uye kupwanya, titanium dioxide zvigadzirwa zvinowanikwa. Iyi nzira inogona kugadzira anatase uye rutile titanium dioxide.
(2) Chlorination process
Iyo chlorination process ye titanium dioxide kugadzirwa inosanganisira kusanganisa rutile kana high-titanium slag poda necoke uyezve kuita yakakwirira-tembiricha chlorination kugadzira titanium tetrachloride. Mushure mekupisa-kupisa oxidation, iyo titanium dioxide chigadzirwa inowanikwa kuburikidza nekusefa, kugezwa kwemvura, kuomesa, uye kupwanya. Iyo chlorination process yetitanium dioxide kugadzirwa inogona chete kuburitsa rutile zvigadzirwa.
Nzira yekusiyanisa sei chokwadi chetitanium dioxide?
I. Maitiro ePamuviri:
(1）Nzira yakareruka ndeyekuenzanisa magadzirirwo nekubata. Fake titanium dioxide inonzwa yakapfava, ukuwo chaiyo titanium dioxide inonzwa rougher.
(2）Nokugeza nemvura, kana ukaisa titanium dioxide paruoko rwako, iyo yenhema iri nyore kugeza, nepo yechokwadi isiri nyore kugeza.
(3）Tora kapu yemvura yakachena uye udonhedze titanium dioxide mairi. Iyo inoyangarara pamusoro ndeyechokwadi, nepo iyo inogara pasi ndeye fake (iyi nzira inogona kusashanda kune yakagadziriswa kana yakagadziridzwa zvigadzirwa).
(4）Tarisa kunyungudika kwayo mumvura. Kazhinji, titanium dioxide inonyungudika mumvura (kunze kwetitanium dioxide yakanyatsogadzirirwa mapurasitiki, ingi, uye imwe yekugadzira titanium dioxide, iyo isinganyunguriki mumvura).
II. Kemikari nzira:
(1) Kana calcium powder yakawedzerwa: Kuwedzera hydrochloric acid kuchaita kuti kuve nekuita kwakasimba nekutinhira kwezwi, pamwe chete nekugadzirwa kwenhamba yakawanda yemabhuru (nokuti calcium carbonate inopindirana neasidhi kuti ibudise carbon dioxide).
(2) Kana lithopone yawedzerwa: Kuwedzera dilute sulfuric acid kana hydrochloric acid inoburitsa kunhuwa kwezai rakaora.
(3) Kana sampuli iri hydrophobic, kuwedzera hydrochloric acid hakuzokonzerese kuita. Zvisinei, mushure mokunyorovesa ne ethanol uyezve kuwedzera hydrochloric acid, kana mabhubhu akagadzirwa, zvinoratidza kuti sampu ine coated calcium carbonate powder.
III. Kune zvakare dzimwe nzira mbiri dzakanaka:
(1) Nokushandisa nzira imwechete yePP + 30% GF + 5% PP-G-MAH + 0.5% titanium dioxide poda, iyo yakaderera simba rezvakagadzirwa zvinhu, iyo inonyanya kutendeseka iyo titanium dioxide (rutile) ndeye.
(2) Sarudza resin yakajeka, yakadai seABS yakajeka ine 0.5% titanium dioxide poda yakawedzerwa. Edza kufambiswa kwechiedza chayo. Iyo yakaderera iyo mwenje transmittance ndeye, iyo inonyanya kuve yechokwadi iyo titanium dioxide hupfu ndeye.
Nguva yekutumira: May-31-2024
