Qhov sib txawv tseem ceeb ntawm photochromic thiab thermochromic yog cov khoom siv photochromic tsaus thaum raug UV hluav taws xob, qhov chaw thermochromic cov ntaub ntawv hloov xim thaum hloov kub.
Cov ntsiab lus photochromic thiab thermochromic feem ntau yog siv rau hauv cov ntsiab lus ntawm lo ntsiab muag uas cov xim hloov vim muaj kev hloov pauv ntawm qee yam xws li zaus ntawm lub teeb thiab ib puag ncig cua sov. Cov no yog cov ntsiab lus tseem ceeb hauv analytical chemistry.
YPhotochromic yog dab tsi?
Lub sij hawm photochromic yog hais txog cov khoom uas tuaj yeem hloov lawv cov xim thaum hloov qhov zaus ntawm qhov teeb meem teeb meem. Feem ntau siv lo lus no yog "photochromic lo ntsiab muag". Cov no tseem hu ua transition lenses. Lawv yog cov tsom iav kho qhov muag, thiab lawv tsaus ntuj thaum raug cov kab teeb ci ntau zaus xws li UV hluav taws xob. Yog li ntawd, lub teeb lub teeb no yog hu ua "activated light". Thaum tsis muaj lub teeb pom kev zoo no, cov lo ntsiab muag rov qab mus rau lawv lub xeev meej.
Daim duab 01: Lub lens photochromic tom qab raug UV teeb (Ib feem ntawm lub lens yog npog nrog daim ntawv thiab tshwm hauv lub xeev meej)
Cov khoom siv los ntawm cov tsom iav photochromic tuaj yeem sib txawv; piv txwv xws li iav, cov khoom siv polycarbonate thiab yas. Tsis tas li ntawd, cov txheej txheem darkening ntawm lo ntsiab muag thaum raug lub teeb tshwm sim sai dua tus nqi ntawm kev tshem tawm ntawm qhov tsis muaj lub teeb. Feem ntau, photochromic lo ntsiab muag yog siv rau hauv tsom iav; Lawv tsaus ntuj hauv lub hnub ci ci thiab pom tseeb hauv lub teeb pom kev zoo.
Thaum xav txog cov txheej txheem ntawm kev hloov xim hauv cov tsom iav photochromic, peb tuaj yeem pom tias cov iav no tau txais lub peev xwm no los ntawm kev kos microcrystalline nyiaj halide hauv iav substrate. Hauv cov iav photochromic yas, muaj cov organic photochromic molecules uas pab kom ua tiav cov nyhuv thim rov qab.
Thermochromic yog dab tsi?
Lub sij hawm thermochromic yog hais txog cov khoom siv uas tuaj yeem hloov xim thaum hloov pauv ntawm qhov kub thiab txias. Lub nplhaib mus ob peb vas yog ib qho piv txwv zoo ntawm cov khoom siv no. Nws yog lub nplhaib uas hloov xim raws li qhov ntsuas kub ntawm tus ntiv tes ntawm tus neeg hnav.
Daim duab 02: Lub Siab Ring
Txawm li cas los xij, muaj qee qhov kev siv cov khoom siv thermochromic ib yam nkaus; e.g. kev tsim cov me nyuam lub raj mis uas tuaj yeem hloov xim raws li qhov kub ntawm cov kua hauv. Ntawm no, cov xim qhia thaum haus dej txias txaus haus. Cov yeeb yaj kiab hauv qab no qhia txog kev hloov xim hauv lub khob thermochromic.
www.differencebetween.com/wp-content/uploads/2020/04/Difference-Between-Photochromic-and-Thermochromic_3.webm
Muaj cov ntaub ntawv organic thiab inorganic peb tuaj yeem siv los tsim cov khoom zoo li no. Nyob rau hauv qeb ntawm cov khoom siv thermochromic organic, muaj ob txoj hauv kev ua kua muaju thiab leuco dyes. Cov kua siv lead ua kua yog siv rau hauv cov ntawv thov precision, tab sis lawv cov xim ntau yam txwv. Leuco dyes, ntawm qhov tod tes, tsis tshua muaj tseeb tab sis tuaj yeem siv nrog ntau yam xim. Nyob rau hauv qeb ntawm cov ntaub ntawv inorganic, peb tuaj yeem hais tias yuav luag tag nrho cov inorganic compounds yog thermochromic rau qee qhov.
Qhov txawv ntawm Photochromic thiab Thermochromic yog dab tsi?
Qhov sib txawv tseem ceeb ntawm photochromic thiab thermochromic yog cov khoom siv photochromic darkens thaum raug UV hluav taws xob, thaum cov khoom siv thermochromic hloov lawv cov xim thaum hloov kub. Ntxiv mus, cov ntaub ntawv photochromic feem ntau yog ua los ntawm iav, cov khoom siv polycarbonate thiab yas thaum cov ntaub ntawv thermochromic tuaj yeem yog cov organic tebchaw lossis cov tshuaj inorganic.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm cov khoom siv photochromic thiab thermochromic.
Summary – Photochromic vs Thermochromic
Cov ntsiab lus photochromic thiab thermochromic yog siv los ntawm cov ntsiab lus ntawm lo ntsiab muag uas cov xim hloov thaum hloov qee yam xws li zaus ntawm lub teeb thiab ib puag ncig cua sov. Qhov sib txawv tseem ceeb ntawm photochromic thiab thermochromic yog cov khoom siv photochromic darkens thaum raug UV hluav taws xob, hos cov khoom siv thermochromic hloov lawv cov xim thaum hloov kub.
