Fumedsilica CAS: 7631-86-9

Fumed silica ua haujlwm ua ib qho khoom siv ntxiv rau hauv kev tsim cov nplaum, cov tshuaj sealant, cov txheej txheej, cov khoom sib xyaw, cov yas, thiab cov khoom siv roj hmab. Nws cov yam ntxwv tshwj xeeb, suav nrog kev ntshiab siab, kev ua haujlwm ntawm qhov chaw, thiab thaj chaw siab, ua rau nws muaj txiaj ntsig zoo rau kev txhim kho cov khoom siv kho tshuab, tus cwj pwm rheological, thiab cov yam ntxwv ua tau zoo ntawm cov khoom tsim. Hauv cov qauv nplaum thiab sealant, fumed silica ua haujlwm ua tus hloov pauv rheology thiab thixotrope, txhim kho kev tiv thaiv sag, kev tswj viscosity, thiab lub zog lo. Los ntawm kev kho qhov concentration ntawm fumed silica, cov chaw tsim khoom tuaj yeem kho cov khoom ntws thiab tus cwj pwm kho ntawm cov nplaum thiab sealant rau cov kev xav tau tshwj xeeb hauv kev tsim kho, tsheb, thiab kev lag luam aerospace. Ntxiv mus, fumed silica yog siv rau hauv cov txheej txheej thiab cov xim kom muab cov teebmeem tiv thaiv kev sib sau ua ke, tiv thaiv kev sib sau ua ke, thiab kev txhawb nqa. Nws qhov loj me me thiab cov tshuaj lom neeg ntawm qhov chaw txhim kho kev ua tiav ntawm zaj duab xis, kev tiv thaiv khawb, thiab kev khaws cia ci ntsa iab hauv cov txheej txheej tiv thaiv, cov xim pleev tsev, thiab cov xim tiav tshwj xeeb, ua kom ntseeg tau tias muaj kev ruaj khov ntev thiab kev zoo nkauj. Hauv cov khoom sib xyaw polymer, fumed silica ua haujlwm ua tus muab khoom txhawb nqa kom txhim kho lub zog kho tshuab, kev ruaj khov ntawm qhov ntev, thiab kev tiv thaiv kev cuam tshuam. Thaum muab tso rau hauv cov yas, elastomers, thiab cov ntaub ntawv sib xyaw, nws txhim kho qhov tawv, kev tiv thaiv kev sib txhuam, thiab kev tiv thaiv huab cua, ua rau lawv tsim nyog rau cov khoom siv hauv tsev, cov khoom siv hauv tsheb, thiab cov khoom siv hluav taws xob uas xav tau cov yam ntxwv ua tau zoo tshaj plaws. Ntxiv mus, fumed silica siv ua tus neeg pab ntws thiab tus neeg sawv cev ntws dawb hauv cov tshuaj, cov khoom noj, thiab cov hmoov. Nws lub peev xwm los tiv thaiv kev sib sau ua ke, txhim kho cov khoom ntws hmoov, thiab tswj kev nqus dej noo ua rau kev ua haujlwm zoo dua thiab cov khoom zoo hauv cov tshuaj granules, cov khoom noj khoom haus, thiab cov dej haus hmoov. Ntxiv mus, fumed silica pom cov ntawv thov hauv cov tshuaj pleev ib ce, cov khoom siv tu tus kheej, thiab cov roj nplua nyeem kev lag luam ua tus neeg sawv cev tuab, tus neeg sawv cev suspending, thiab tus neeg sawv cev matting. Nws qhov kev hloov pauv hauv kev tswj cov qauv, viscosity, thiab cov khoom siv kho qhov muag pab txhawb rau kev tsim cov tshuaj pleev, tshuaj pleev, roj, thiab cov kua dej ua haujlwm nrog cov yam ntxwv zoo nkauj thiab kev ua tau zoo. Zuag qhia tag nrho, fumed silica ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam, muab cov txiaj ntsig ntau yam ua tus neeg ntxiv rau kev txhim kho kev ua tau zoo ntawm cov khoom, kev sib xws, thiab zoo hauv ntau yam kev siv, qhia txog nws qhov tseem ceeb hauv kev tshawb fawb txog cov ntaub ntawv, kev tsim khoom, thiab kev tsim khoom.