Silica yog dab tsi? Dab tsi yog qhov kev siv ntawm silica?
Cov kua carbon ntawm silica yog SiO2 , muaj ob hom silica, crystalline silica thiab amorphous silica nyob rau hauv qhov. Kev siv cov twj silica yog ntau heev, cov tshooj no piav qhia txog nws cov ntawv tseem ceeb. 1, thickener thiab thixotropic tus neeg sawv cev Relying nyob rau ntawm lub hydroxyl, silica yog yooj yim tsim hydrogen bonds .Txawm txhuam thiab txau nws muaj fluidity zoo, li ntawd peb feem ntau yog siv silica nyob rau hauv thawj xim nyob rau hauv cov xim kom tsis txhob sagging. 2, tus neeg saib xyuas flafing Silica muaj qhov zoo absorbance thiab muaj ntau cov tshuaj yuav ua tau kom muaj zog txaus siab dua. Matting tus neeg saib xyuas muaj peev xwm sawv kev kho lub nrooj ntawm 45 °, 60 ° thiab 85 ° orientation. Coatings nrog silica matting cov neeg ua hauj lawm yuav overcoated. 3, yeeb yaj duab los thaiv tus neeg saib xyuas / qhib tus neeg sawv cev Nyob rau hauv polyethylene, polyphenylene, tsis muaj tshuaj polyvinyl chloride zaj duab xis ntau lawm los ntawm kev ntxiv silica, tuaj yeem tsim cov yeeb yaj kiab yooj yim qhib. Vim hais tias ntawm tsim ntawm me me irregularities nyob rau saum npoo ntawm zaj duab xis, muaj ib tug me ntsis geometric chaw nruab nrab ntawm films kom tiv thaiv kev nkag mus ntawm cov tshuaj tsawg-molecular. 4, daim ntawv thov roj hmab Silica tuaj yeem txhim kho lub cev thiab cov khoom sib txuas ntawm cov roj hmab txuas kom txo tau cov roj hmab lag luam thiab txo lub thawv ntuag tawm uas tsis tau poob ntawm cov dej xau ntub. Nws yog dav siv nyob rau hauv tag nrho cov hom roj hmab khoom. 5, nyob rau hauv daim ntaub ntawv yas Vim lub siab muaj zog, siab muaj thiab muaj me me ntawm silica, nws tuaj yeem txhim kho compactness, nto finish thiab hnav tsis kam. 6, nyob rau hauv daim ntawv thov ntawm atomic ash Silica yog qhov zoo tshaj plaws los tiv thaiv tus neeg sawv cev. Nyob rau hauv qhuav ntawm ashes, qhov sib ntxiv ntawm silica txhim kho lub stability ruaj ntseg ntawm lub system, muaj zoo anti-settling zoo thiab zoo heev thixotropy. Hauv kev xaus, silica yog dav siv hauv ntau lub lag luam, piv txwv li, yuav siv tau raws li kev lag luam kev cog tshuaj ntsig cov khoom ntxiv, cov khoom sib xyaw ua ke, cov khoom siv hmoov nquam polish nrog semiconductor wafer.