Silicon Dioxide rau Cov Tshuaj Txhuam Hniav / Tshuaj Txhuam Hniav
Silica yog chiv tsis zoo, nrog cov tshuaj fluoride hauv cov tshuaj txhuam hniav thiab lwm tus. Nws muaj zoo compatibility, zoo compatibility thiab ruaj khov paste zoo. Raws li cov lus qhia sib txawv thiab cov specifications thiaj li tau los ntawm kev sib txawv ntau lawm. Silicon dioxide, xws li kev sib txhuam, hom tuab thiab sib xyaw. Muaj ob peb yam tseem ceeb hauv cov tshuaj txhuam hniav.
Cov tshuaj fluorine
Hauv kev tsim cov tshuaj txhuam hniav, cov ntaub ntawv tseem ceeb uas cuam tshuam cov tshuaj fluoride.
Nws yog ib tug neeg ua hauj lwm tsis sib haum xeeb, thiab tus neeg xaiv kev sib txhuam tsis sib haum yog tus yuam sij rau cov tshuaj txhuam hniav.
Silica muaj kev ruaj ntseg tshuaj zoo thiab cov tshuaj fluoride. Peb tau ua ntau yam kev sim siab aiming ntawm cov tshuaj fluoride sib xyaw nrog ntau tus tsiaj txhu. Nyob rau hauv qhov kev ntsuam xyuas kev cuam tshuam, kev tshawb xyuas cov ntsiab lus ntawm cov tshuaj fluorine yog 100%, Cov txheej txheem muab faib raws li cov ntsiab lus ntawm lub ncuav mog qab zib, uas yog cov ntsiab lus ntawm cov pas dej ntub dej. Cov dej ntub dej ntawm cov dej ntub dej yog ntau tshaj 70% siab tshaj cov khoom siab. Tsawg tshaj li 70% yog khoom qis los sis tsis sib haum xeeb.
Kev sib txhuam silica
Cov silica no yog cov qauv khoom qis nrog cov dej noo noo ntawm ntub dej ncuav mog qab zib. 70% hauv qab no, qee thaj tsam li ntawm 60%, roj nqus pa 110 ~ 130ml / 100g, thaj tsam li ntawm 170-200m 2 / G. Zoo heev
Tawm ncua kev ncua, nws qhov kev cog lus yog kev cog lus thiab kev sib tw, thiab nws yog siv rau kev sib txhuam.
Cov tshuaj txhuam hniav uas tau los ntawm tus neeg sawv cev tau zoo muab tshuaj txhuam, tus neeg tsis huv thiab kev ruaj ntseg zoo zoo.
Nyob rau tib lub sij hawm, nws tsis ua puas rau cov hniav, thiab kho cov ntaub so ntswg thiab pom ntawm qhov muab tshuaj.
Cov txiaj ntsim tau zoo los tau tiav.
Cov silica no yog ib yam khoom muaj txiaj ntsig heev nrog noo noo cov ncuav mog qab zib ntub dej.
Saum toj siab 70%, cov roj nqus dej muaj li 300 ml / 100g lossis siab dua.
Qhov chaw no feem ntau yog 300m 2 / 100g. Muaj kev sib tw zoo thiab muaj
Hnyuv zoo me me thiab cov dej zoo ua ke muaj peev xwm. Nws cov yam ntxwv yam ntxwv yog silanol puag.
Peb lub cev pob txha sib luag yog tsim vim yog kev sib txuas ntawm cov ntoo. Yog li no, cov kua dej silica
Cov dispersion muaj qee qhov kev sib luag ntawm cov lus sib thooj thiab zoo thixotropy, uas yog sib npaug nrog inorganic.
Cov tshuaj txhuam hniav uas siv ntau hom tshuaj txhuam hniav tuaj yeem txo qhov qee thaj ntawm qee cov thickeners.
Nyob rau tib lub sij hawm, txhim kho qhov muab tshuaj txhuam thiab muab faib ua kom zoo, txhim kho kev txhim kho stability.
Ua si lub luag haujlwm zoo.
Pob tshuam cov tshuaj txhuam hniav
Kev txhuam hniav ntawm cov tshuaj txhuam hniav muaj nws tus kheej refractive index. Kev txhuam ntawm qhov kev sib txhuam ntawm kev sib txhuam ntawm tus txhuam kev sib tw yuav tsum sib dhos, txwv tsis pub cov tshuaj txhuam hniav yuav tsis ua kom muaj kev sib tw, uas yog hais tias, cov kua ua kua ntawm qhov muab tshuaj yog ua kom muaj qhov ntsuas ntawm cov khoom seem. Nws yog qhov yuav tsum tau ua ntej rau lub taub ntawm cov tshuaj txhuam hniav. Lub ntsiab ntawm cov kua ua kua dej yog moistening ntub tus neeg sawv cev, feem ntau yog sorbitol, glycerol, nws txoj kev ntsuas refractive yog 1. 457, 1. 470. Lub silicon dioxide yog tswj los ntawm kev kho cov txheej txheem ntau thiab tswj cov kev ntsuas qis ntawm 1.450 thiab 1. 460 Qhov sib piv ntawm tus neeg ntxhib ntxig rau qhov dej tuaj yeem hloov kho.
Lub sij hawm ua kua yog zoo ib yam nrog rau qhov ntsuas ntawm cov theem ntawm cov theem, kom cuag tau cov nyhuv.
Ntxiv rau kev txheeb xyuas qhov Performance index, nws qhov kev xa xov no tseem zoo, feem ntau, t nws yuav tsum yog tshaj 70%. Tsuav ntev li ob qhov kev mob uas muaj nyob saum toj no, cov khoom zoo zoo. Phem dispersed hauv hydrophilic colloids tsis tsim diffuse reflection. Ib qho tshuaj pleev nrog zoo dua transparency. Yog li no, silicon dioxide yog qhov kev npaj xwb.
Tus txhuam hniav ntawm cov tshuaj txhuam hniav