Yuav ua li cas xaiv Titanium Dioxide rau Emulsion Xim
Nyob rau hauv emulsion xim tsim, titanium dioxide tso nyiaj rau ib tug loj feem ntawm tus nqi ntawm raw cov ntaub ntawv, thiab ntau hom emulsion xim cov khoom yuav tsum tau sib txawv qualities ntawm titanium dioxide raws li ib tug pigment kom lawv ua tau zoo heev. Muab rau hauv tus account qhov cuam tshuam ntawm titanium dioxide ntawm kev ua haujlwm ntawm cov xim emulsion, cov hauv qab no yuav tsum tau txiav txim siab thaum xaiv.
1 Dawb
Emulsion xim raws li cov xim zoo nkauj coated rau saum npoo ntawm lub tsev, nws cov tsos zoo nkauj yog qhov tseem ceeb tshwj xeeb. Muaj ob qhov yuav tsum tau ua kom zoo nkauj: ib qho yog muab cov txheej txheem zoo nkauj ntawm cov xim sib xws; lwm qhov yog los npog cov xim ntawm lub tsev nws tus kheej. Qhov dawb ntawm titanium dioxide yog qhov tshwm sim los ntawm cov nyhuv ntawm titanium dioxide ntawm lub teeb, uas txiav txim siab nws lub peev xwm tshwm sim dawb hauv cov xim thiab yog qhov tseem ceeb rau cov xim emulsion.
2 Npog lub zog
Npog lub zog yog hais txog lub peev xwm ntawm cov xim hauv cov xim los npog lub hauv paus xim ntawm qhov chaw ntawm ib qho khoom thaum nws yog coated nrog ib co xim, kom lub hauv paus xim tsis pom los ntawm cov xim. Lub zog zais ntawm cov xim yog nyob ntawm nws cov qauv siv lead ua, nws qhov ntsuas tsis pom kev, nws lub peev xwm nqus lub teeb thiab nws lub peev xwm los tawg lub teeb. Cov xim nrog lub siab refractive index muaj lub zog zais siab.
3 Xim lub zog
Xim lub zog hais txog lub peev xwm ntawm cov xim sib xyaw kom pom nws cov xim thaum sib xyaw nrog lwm cov xim los ntawm titanium dioxide. Nyob rau hauv lub neej tiag tiag, feem ntau siv cov xim dawb los yog xim xim rau xim rau cov tsev, tsis tshua siv cov xim dawb huv, feem ntau siv titanium dioxide los npaj cov xim dawb toned ua ntej, tom qab ntawd ntxiv cov xim pleev xim rau cov xim pleev xim ua ntej txheej, rau- qhov chaw xim sib xyaw. Thaum titanium dioxide yog siv rau lub toning puag txheej, ntxiv rau kev txiav txim siab lub hwj chim npog, qhov tseem ceeb ntawm kev txiav txim siab yog nws cov xim muaj zog, lub zog ntau dua ntawm cov xim, qhov me me, qhov ntau npaum li cas, uas tuaj yeem txo cov nqi tsim khoom.
4 Dispersibility
Thaum sib tsoo thiab dispersing nyob rau hauv cov xim ntau lawm cog, qhov zoo los yog phem dispersion ncaj qha cuam tshuam lub sij hawm sib tsoo thiab dispersing lub sij hawm, yog ib tug ntawm cov tseem ceeb nyiaj txiag ntsuas nyob rau hauv zus tau tej cov xim, thiab sib tsoo lub sij hawm ntev dhau lawm, nws tseem yuav ua rau kom cov xim. khoom ua paug, kom cov khoom whiteness ua neeg pluag. Dispersibility yuav tsis tsuas cuam tshuam rau titanium dioxide xim lub zog, npog lub hwj chim, roj nqus thiab lwm yam ntsuas, tab sis kuj ncaj qha cuam tshuam rau kev ua cov khoom thiab . Lub gloss thiab weatherability ntawm cov khoom kawg.
5 Lub teeb thiab huab cua tsis kam
Huab cua tsis kam ntawm sab nrauv phab ntsa coatings, piv txwv li sab nraum zoov durability, hais txog kev raug rau sab nraum zoov ib puag ncig, cov khoom siv ntawm sab nrauv phab ntsa coatings, xws li modulus, lub zog, kev sib txuas, xim thiab lub teeb tuav thiab lwm yam kev hloov ntawm cov degree, thiab seb puas nkig, chalking, discoloration, poob ntawm lub teeb, tev thiab lwm yam tshwm sim. Lub luag haujlwm tseem ceeb ntawm cov txheej txheem phab ntsa sab nrauv yog kev tiv thaiv thiab kho kom zoo nkauj, cov yeeb yaj kiab txheej yuav tsum muaj peev xwm tswj tau kom txog thaum rov ua dua tshiab, thiab tuaj yeem tswj tau qhov pom kev zoo, yog li ntawd, huab cua tiv thaiv tseem ceeb heev.
