Cov impurities puas ua rau Titanium Dioxide Discoloration los ntawm tshav kub?
Yog tias cov titanium dioxide muaj cov hlau oxide, npib tsib xee oxide, chromium oxide thiab lwm yam impurities, tom qab lub hnub ci yuav ua xim av, tom qab tawm hauv lub hnub tuaj yeem rov qab mus rau cov xim qub; Nyob rau hauv cov txheej txheem ntawm cov pa, titanium dioxide rhuab mus rau 200 degree -600 degree, titanium dioxide yuav ua paj xim av, tom qab txias yuav rov qab mus rau lub qub xim, qhov tshwm sim no hu ua lub phenomenon ntawm photochromic interchange.
Lub ntsiab yog vim li cas rau qhov tshwm sim yog lub photochemical xwm ntawm titanium dioxide. Titanium dawb nyob rau hauv lub teeb ntawm kev hlub nruab hnub nrig, yuav nqus cov pa tawm los ntawm lub teeb ultraviolet hauv qab 400nm, yuav ua rau cov impurities no, tsim cov oxides, nres irradiation tom qab titanium dawb yuav rov qab mus rau nws cov xim qub.
Kev ua tau zoo ntawm titanium dawb yog ze ze rau photochemistry, thiab titanium dawb yog ib qho kev qhia tshwj xeeb ntawm optics, titanium dawb raws li * cov xim xim yooj yim xws li whiteness, zais zog, achromatic zog, weatherability, yog qhov tshwm sim ntawm lub luag haujlwm ntawm optics. Titanium dawb * zoo heev pigment zog yog kom muaj ib tug kuj muaj zog npog lub hwj chim, nws yog ib tug pigment yuav npog lub nto ntawm cov khoom yuav tsum tau pleev xim rau lub peev xwm mus cuag tiav kev pab them nqi, unit luj ntawm cov xim yuav npog lub substrate cheeb tsam, muaj peev xwm ua tiav kev pab them nqi. ntawm tus nqi ntawm cov xim yuav tsum tau.
Lub ntsiab yam tseem ceeb cuam tshuam rau nws lub hwj chim npog yog lub refractive index ntawm cov xim siv lead ua nws tus kheej, nws cov particle loj thiab nws cov particle loj tis thiab nws cov dispersion kev ua tau zoo, uas lub optical xwm yog tshwm sim los ntawm qhov sib txawv ntawm refractive index ntawm ib puag ncig nruab nrab.
