Thaum tsoomfwv thiab cov lag luam thoob ntiaj teb ua kom muaj kev siv zog los ua kom tau raws li lub hom phiaj kev txhim kho kom ruaj khov, alumina ua kom nquag tau txais kev lees paub tias yog cov khoom siv tseem ceeb rau kev tiv thaiv ib puag ncig thiab kev txhim kho kev lag luam. Cov alumina oxide uas muaj qhov ntxeem tau, thaj chaw siab, pom tsis tau muaj dua li...
Ib lub platform khoom siv tau ntau yam thiab ruaj khov tau txais kev nyiam thoob plaws hauv kev lag luam thev naus laus zis siab: cov khoom siv calcium carbonate (CaCO₃) microspheres uas tau tsim kho kom raug. Tsiv mus deb tshaj lawv lub luag haujlwm ib txwm ua cov khoom ntim yooj yim, cov khoom me me no uas loj sib npaug, tam sim no ua rau muaj kev hloov pauv loj ...
Nyob rau xyoo tas los no, silica gel tau tshwm sim los ua ib qho ntawm cov khoom siv tau yooj yim thiab tseem ceeb tshaj plaws hauv ntau yam lag luam, los ntawm kev khaws cia zaub mov mus rau kev siv kho mob. Paub txog nws cov qauv tshuaj lom neeg tshwj xeeb thiab cov khoom nqus tau zoo heev, silica gel tau dhau los ua cov khoom tseem ceeb hauv ntau yam ...