Cov nyhuv ntawm Particle loj ntawm lub
Npog lub zog ntawm Titanium Dioxide
Lub npog fais fab ntawm titanium dioxide muaj feem xyuam rau qhov refractive index thiab tawg index. Lub refraction thiab scattering (reflection) ntawm cov xim dawb tshwm sim ntawm qhov sib cuam tshuam ntawm cov xim thiab cov khoom sib kis, thiab qhov loj dua qhov sib cuam tshuam, qhov opacity siab dua. Yog li ntawd, lub hwj chim npog muaj feem xyuam rau thaj tsam ntawm titanium dioxide hais, raws li qhov chaw saum npoo yog inversely proportional rau particle loj, qhov me me particle loj, qhov loj ntawm qhov chaw, lub zog npog ntau dua. Rau qhov teeb meem teeb pom kev ntawm qee qhov wavelength, nws muaj qhov siab tshaj plaws lub teeb tawg thiab siab dua whiteness thaum qhov loj ntawm cov xim pigment yog ib nrab ntawm lub wavelength. Txij li thaum pom lub teeb wavelength yog {{0}}}4-0.7μm, yog li nyob rau hauv txoj kev xav qhov zoo tshaj plaws particle loj ntawm titanium dioxide pigment hais yog 0.2-0.35μm ntau yam .
TiO2 me me me me yog qhov zoo dua li qhov loj me me hauv kev tawg xiav lub teeb, yog li nws muaj lub hauv paus xiav ntau dua thiab zoo heev whiteness. Dispersion tus nqi nyob rau hauv particle loj ntawm 0.2μm ntawm qhov siab tshaj plaws, nyob rau lub sij hawm no lub whiteness ntawm titanium hmoov, achromatic zog thiab nkaum hwj chim yog pom zoo. Nyob rau tib lub sijhawm, qhov nqaim me me ntawm qhov sib faib me me, qhov smoother ntawm cov txheej txheej zaj duab xis ua thiab siab dua qhov gloss. Yog li, raws li qhov yuav tsum tau ua ntawm ntau yam kev lag luam nce ntxiv, kev ua haujlwm sib sib zog nqus ntawm titanium dioxide yog ib txoj haujlwm uas kev lag luam titanium dioxide yuav tsum tau ua tib zoo saib xyuas kom tau txais cov khoom zoo titanium dioxide. Hauv kev tsim cov thev naus laus zis los tsim cov titanium dioxide, txo qhov me me ntawm titanium dioxide hais thiab ua kom muaj qhov nqaim me me faib yog qhov tseem ceeb rau kev hloov kho tshiab hauv kev lag luam hauv qab.
