Dub Titanium yog dab tsi? Dub Titanium Stainless Hlau Duab
Dub titanium yog ib qho inorganic composite pigment nrog siab dub thiab zoo lub cev thiab tshuaj stability. Nws yog feem ntau tau los ntawm kev txo cov titanium dioxide thiab muaj cov hmoov sib xyaw ntawm sodium chloride cubic siv lead ua thiab rutile tetragonal siv lead ua. Dub titanium muaj cov cua kub tsis kam, kua qaub thiab alkali tsis kam, siab zais lub zog thiab zoo dispersibility, thiab yog ib qho khoom zoo nkauj thiab tsis muaj tshuaj lom.
I. Dub titanium tsis yog titanium alloy
Dub titanium yog cov khoom siv stainless hlau. Nws siv cov txheej txheem tshwj xeeb ntawm qhov chaw kho mob xws li electroplating lossis dej plating los ua kom cov hlau tsis muaj xim dub tshwm. Txoj kev kho no tsis tsuas yog txhim kho cov hniav zoo nkauj ntawm cov hlau tsis muaj steel, tab sis kuj txhim kho nws cov corrosion kuj, hnav tsis kam thiab tiv thaiv ultraviolet hluav taws xob.
Cov khoom siv ntawm cov titanium stainless hlau phaj feem ntau suav nrog ntau hom stainless hlau xws li 201, 304, 316, thiab lwm yam, nrog lub thickness xws li 0.28mm txog 5mm. Nyob rau hauv cov nqe lus ntawm lub cev khoom, qhov ceev ntawm dub titanium stainless hlau yog hais txog 7.92 g / cm³, elastic modulus yog 200 GPa, lub tensile zog yog 520 MPa, lub elongation yog 40%, thiab hardness yog 207HBW. Nyob rau hauv cov nqe lus ntawm tshuaj muaj pes tsawg leeg, nws muaj ib tug tej yam feem ntawm cov ntsiab lus xws li carbon, silicon, manganese, phosphorus, sulfur, chromium, npib tsib xee thiab molybdenum.
Cov hom dub titanium stainless hlau muaj xws li dub titanium txhuam, dub titanium frosted thiab dub titanium daim iav, thiab lwm yam. Cov hom no yuav siv cov txheej txheem kev kho deg sib txawv thaum ua, xws li daim iav polishing, txhuam sandblasting lossis etching. Ntawm lawv, cov titanium dub daim iav stainless hlau phaj yog tsim los ntawm kev sib tsoo thiab polishing ntawm lub zoo tib yam stainless hlau phaj, thiab ces titanium plating los tsim ib tug corrosion-resistant dub titanium txheej ntawm nws nto.
Cov txheej txheem ntau lawm ntawm titanium stainless hlau feem ntau suav nrog electroplating thiab dej plating. Cov xim ntawm electroplating yog grey, thaum cov xim ntawm cov dej plating yog dub. Yog tias 304 lossis 316 stainless hlau phaj siv rau dej plating ntawm titanium dub, xim tuaj yeem hloov kho rau xim dub lossis xiav raws li cov neeg siv khoom xav tau. Cov xim dub titanium stainless hlau phaj yog qhov yooj yim hauv cov txheej txheem ua, xim ruaj khov, thiab tsis tshua muaj teeb meem xim sib txawv. Nws muaj zog kho kom zoo nkauj. Raws li ntau yam xim, xim dub tuaj yeem siv rau ntau yam scenes los tsim kom muaj qhov zoo nkauj zoo nkauj thiab zoo nkauj.
II. Puas muaj titanium dub?
1. Titanium Suboxide
Titanium Suboxide yog ib qho muaj zog heev, ntshiab dub inorganic tshiab lub zog ua haujlwm khoom, thiab nws cov xim yog xim dub.
Hais txog cov qauv tshuaj, nws yog nruab nrab ntawm titanium dioxide (TiO2) thiab hlau titanium. Nws muaj ntau hom ntawv, suav nrog polycrystalline thiab crystalline cov ntaub ntawv, feem ntau yog anatase thiab rutile. Cov qauv ntawm anatase-type titanium suboxide yog tetragonal system, thiab cov qauv ntawm rutile-type titanium suboxide yog hexagonal system.
Titanium suboxide yog ib puag ncig tus phooj ywg thiab cov khoom tsis muaj tshuaj lom uas ua tau raws li cov qauv kev nyab xeeb ntawm cov zaub mov thiab tsis ua rau muaj kev puas tsuaj rau daim tawv nqaij, ua tau raws li cov kev xav tau ntawm kev lag luam qis carbon. Titanium suboxide muaj hluav taws xob zoo conductivity, tshwj xeeb tshaj yog Ti4O7 theem, uas nws ib leeg siv lead ua conductivity siab li 1500S / cm³. Tsis tas li ntawd, titanium suboxide kuj muaj thermal stability thiab zoo dispersibility, thiab tuaj yeem sib npaug sib npaug hauv dej thiab cob.
Cov yam ntxwv dub ntawm titanium suboxide ua rau nws siv dav hauv photocatalysts, roj teeb electrode cov ntaub ntawv, LED dub matrix cov ntaub ntawv thiab lwm yam. Vim nws lub cev thiab tshuaj lom neeg tshwj xeeb, titanium dioxide tuaj yeem siv los ua cathode los hloov graphite hauv cov roj teeb kom txo tau qhov capacitance attenuation los ntawm cov nqi thiab tawm mus. Nyob rau tib lub sijhawm, nws tseem qhia tau tias kev ua haujlwm zoo hauv kev lag luam tshuaj, electrometallurgy, electroplating, kev tiv thaiv ib puag ncig kev lag luam thiab kev kho dej.
1>Cov yam ntxwv ntawm titanium dioxide
① Lub cev muaj zog: Nws muaj hluav taws xob zoo nyob rau hauv chav tsev kub, tshwj xeeb tshaj yog Ti4O7, nws ib leeg siv lead ua conductivity yog 1500Scm-1. Qhov ntim ceev yog 3.15 g / cm³ - 3.18g / cm³.
② Chemical zog: Nws muaj tshuaj lom neeg ruaj khov thiab corrosion kuj. Hauv 50 degree thiab 42% concentration H2SO4, tus nqi zoo li qub tsuas yog 0.019g / m² / hnub. Nws muaj cov khoom zoo electrochemical. Ntawm chav tsev kub, qhov ua haujlwm tam sim no tswj tau ntawm 5-20mA / cm². Cov khoom siv tuaj yeem siv ua ob qho tib si zoo thiab tsis zoo electrodes rau hydrogen thiab oxygen evolution tshua, thiab hydrogen thiab oxygen evolution overpotential yog siab heev.
③ Thermal stability: Qhov kub tsis kam ntawm titanium oxide nyob rau hauv oxidizing cua yog tsawg dua 6 00 degree, thiab hmoov particle loj yog tsawg dua los yog sib npaug rau 1.0μm.
④ Kev tiv thaiv ib puag ncig thiab tsis muaj tshuaj lom: Nws ua tau raws li cov qauv kev nyab xeeb ntawm cov zaub mov, yuav tsis ua rau cov tawv nqaij puas tsuaj, thiab ua tau raws li qhov kev xav tau ntawm kev lag luam qis.
2>Daim ntawv thov teb ntawm titanium oxide
① Roj teeb teb: Raws li kev hloov cathode rau graphite, nws tuaj yeem txo qhov kev puas tsuaj los ntawm kev them nqi thiab tawm mus; nws yog siv los ua electrodes thiab bipolar cov ntaub ntawv rau roj hlwb, zinc-air batteries thiab flow batteries.
② Kev lag luam tshuaj: Vim nws cov tshuaj lom neeg ruaj khov thiab kev ua tau zoo, nws tuaj yeem siv rau hauv kev lag luam chlor-alkali, chlorate manufacturing, dichromic acid npaj thiab organic electrosynthesis.
③ Electrometallurgy teb: Raws li cov khoom siv hluav taws xob rau electrolytic zinc deposition, hlau rov qab, electrolytic manganese oxide, hlau foil ntau lawm thiab rov ua dua ntawm cov ntawv luam tawm Circuit Board etching tov.
④ Electroplating teb: Vim tias cov electrolyte muaj cov tshuaj fluoride ions zoo heev, titanium oxide electrode muaj cov pa oxygen evolution ntau dhau, muaj zog corrosion kuj, hnav tsis kam, thiab ruaj khov electrode loj.
⑤ Kev tiv thaiv ib puag ncig kev lag luam thiab kev kho dej: dav siv hauv electrocatalytic degradation ntawm cov organic pollutants thiab landfill leachate, electrocatalytic kho phenol khib nyiab, luam ntawv thiab dyeing dej khib nyiab, oilfield wastewater kho, kho dej phwj hauv tsev kho mob, electrolysis ntawm seawater rau hydrogen ntau lawm, seawater desalination , electrolysis ntawm dej tua kab mob thiab ozone ntau lawm.
⑥ Cathodic tiv thaiv teb: siv rau kev tiv thaiv corrosion ntawm cov roj cia tso tsheb hlau luam, nkoj, chaw nres nkoj, txuas hniav thiab cov pob zeb muaj zog, thiab cathodic tiv thaiv av.
Muaj ntau txoj hauv kev los npaj titanium dioxide, suav nrog sol-gel txoj kev, hydrothermal method, high-temperature oxidation method, thiab lwm yam.
2. Dub titanium dioxide
Kev lig kev cai titanium dioxide yog xim dawb siv dav hauv txheej, yas, papermaking thiab lwm yam lag luam. Txawm li cas los xij, titanium dioxide tuaj yeem ua dub los ntawm kev kho tshuaj tshwj xeeb xws li hydrogenation, tshuaj txo qis, anodizing-annealing thiab lwm txoj kev.
Piv nrog cov tsoos dawb titanium dioxide, cov titanium dioxide dub no nthuav tawm lub teeb pom kev zoo thiab muaj peev xwm thauj tau hluav taws xob, tau txhim kho qhov muag pom kev zoo, thiab tuaj yeem nqus tau lub teeb los ntawm ultraviolet mus rau infrared cheeb tsam ntawm lub hnub ci spectrum. Qhov no feem ntau yog vim nws qhov tshwj xeeb core-plhaub qauv, nyob rau hauv uas lub plhaub sab nrauv yog ib qho tsis muaj oxygen amorphous txheej thiab cov tub ntxhais sab hauv yog thawj theem crystalline.
Titanium dioxide nrog cov qauv no nthuav tawm ntau dua kev ua haujlwm hauv photocatalytic kev ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv lub peev xwm nqus ntawm pom lub teeb thiab ze-infrared lub teeb cheeb tsam, uas yog ib qho tseem ceeb heev rau kev txhim kho kev siv efficiency ntawm hnub ci zog. Qhov no ua rau nws muaj peev xwm siv tau tus nqi hauv thaj chaw ntawm photocatalysis, lub hnub ci hlwb, hnub ci thermal sau, thiab lwm yam, thiab muab kev tshawb fawb tshiab rau kev siv peev xwm ntawm titanium dioxide hauv lub zog teb.
① Photohydrogen ntau lawm: Dub TiO2 tau kawm dav rau cov dej photocatalytic decomposition los tsim hydrogen vim nws muaj peev xwm nqus pom lub teeb thiab txawm nyob ze-infrared teeb. Piv txwv li, Ti3+ ions thiab oxygen vacancies uas tsim los ntawm hydrogenation tuaj yeem txhim kho qhov nqus ntawm lub teeb pom kev zoo, them cov cab cab ntes thiab them lub peev xwm sib cais, yog li txhim kho kev ua haujlwm ntawm photocatalytic hydrogen ntau lawm.
② Photoelectrochemical hydrogen ntau lawm: Cov dub TiO2 nanotube array npaj los ntawm electrochemical txo txoj kev qhia tau hais tias txhim khu kev qha photoelectrochemical dej splitting kev ua tau zoo, uas yuav pab tau kom cov efficiency ntawm photoelectrochemical hydrogen ntau lawm.
③ Photodegradation ntawm cov organic teeb meem: Dub TiO2 muaj photodegradation siab heev rau ntau yam organic pollutants xws li phenol, active dub 5, rhodamine B, methylene xiav, thiab lwm yam, thiab yog siv los tshem tawm ib puag ncig cov pa phem.
④ Photochemical sensors: Dub TiO2 kuj tseem siv rau hauv kev txhim kho cov tshuaj photochemical sensors vim nws qhov kev ua tau zoo ntawm lub teeb pom kev zoo, uas yog siv los txheeb xyuas cov pa phem hauv ib puag ncig.
⑤ Cancer photothermal therapy: Polyethylene glycol-coated hydrogenated black TiO2 tau kawm txog kev kuaj mob qog noj ntshav thiab kev kho mob, uas qhia tau hais tias muaj txiaj ntsig zoo photothermal kho.
⑥ Lwm yam kev siv hluav taws xob thiab ib puag ncig: Dub TiO2 kuj tau kawm rau lwm yam kev hloov pauv hluav taws xob thiab kev kho ib puag ncig, xws li photocatalytic CO2 txo, tshuaj tua kab mob tua kab mob, thiab lwm yam.
Kev tshawb fawb kev vam meej ntawm dub titanium dioxide qhia tau hais tias nws lub teeb nqus kev ua tau zoo thiab kev ua haujlwm photocatalytic tuaj yeem tswj hwm los ntawm cov txheej txheem sib txawv thiab kev ua haujlwm tsis zoo, yog li ua tiav ntau yam kev siv hauv thaj chaw ntawm photocatalysis. Txawm hais tias qee qhov kev tshawb fawb tau ua tiav, qhov kev ua tau zoo ntawm TiO2 dub tseem nyob deb ntawm qhov yuav tsum tau ua tiag tiag, thiab qee qhov tseem ceeb photocatalytic mechanisms tseem tsis meej. Kev tshawb fawb ntxiv yog xav tau los txhim kho nws cov photocatalytic efficiency thiab photoquantum efficiency.