Silica siv nyob rau hauv yas zaj duab xis
Silica (SiO2) yog ib qho tseem ceeb muaj nyob rau hauv ntau yam lag luam. Ib qho ntawm nws cov kev siv ntau yog hauv kev tsim cov yeeb yaj kiab yas ua tus neeg saib xyuas kev thaiv lossis qhib tus neeg sawv cev. Cov txheej txheem tseem ceeb siv los tsim cov silica no yog txoj kev los nag. Hauv cov qauv no, cov tshuaj uas muaj silicate ions thiab cov ntxhia muaj zog xws li hydrochloric acid yog sib xyaw ua ke hauv kev tswj xyuas. Cov tshuaj tiv thaiv tsim cov khoom zoo li gel uas tom qab ntawd ntxuav, ziab, thiab milling kom tau txais cov khoom kawg.
Qhov laj thawj tseem ceeb ntawm kev siv silica los ua tus neeg sawv cev tiv thaiv hauv cov yeeb yaj kiab yas yog los tiv thaiv cov khoom pov tseg. Raws li cov yeeb yaj kiab yas tau siv dav hauv kev ntim khoom, lawv nyiam lo ua ke vim muaj cov nqi zoo li qub lossis lwm yam kab mob. Qhov no ua rau nws nyuaj rau cov neeg siv khoom cais lawv, ua rau muaj kev puas tsuaj rau cov yeeb yaj kiab. Silica particles ntxiv me me rau cov yeeb yaj kiab formulations ua raws li cov me me spacers ntawm cov yeeb yaj kiab, yog li tsim cov pa tawm thiab tiv thaiv adhesion. Qhov no ua rau kev sib cais yooj yim ntawm cov yeeb yaj kiab, txo cov khoom pov tseg thiab ua kom cov khoom ncav cuag nws qhov kawg-siv qhov zoo.
Lwm qhov tseem ceeb ntawm kev siv silica ua tus neeg sawv cev qhib yog nws cov qib siab ntawm purity, tsis muaj kev cuam tshuam nrog lwm cov ntaub ntawv thiab tsis muaj saj lossis tsw. Qhov no ua rau nws muaj kev nyab xeeb rau kev siv hauv cov ntawv ntim khoom noj uas qhov kev noj qab haus huv thiab zoo ntawm cov khoom ntim khoom yog qhov tseem ceeb tshaj plaws. Tsis tas li ntawd, silica muaj qhov ruaj khov thiab tsis decompose txawm tias nyob rau hauv qhov kub thiab txias, ua kom lub neej ntev dua rau cov khoom ntim.
Hauv kev xaus, silica tsim los ntawm txoj kev nag lossis daus muaj lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom zoo ntawm cov yeeb yaj kiab yas. Raws li tus neeg saib xyuas kev tiv thaiv, nws pab txo cov khoom pov tseg thiab ua kom cov khoom ncav cuag cov neeg siv khoom zoo. Nws qib siab ntawm purity, tsis muaj kev cuam tshuam thiab tsis muaj saj thiab tsw ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv hauv cov ntawv ntim khoom noj. Kev siv cov silica hauv kev tsim cov yeeb yaj kiab yas yog ib kauj ruam zoo los tsim kom muaj kev lag luam ruaj khov, zoo, thiab muaj txiaj ntsig zoo.