Silicon dioxide rau Anti-corrosive Txheej
Silicon dioxide, tseem hu ua silica, yog ib qho tshwm sim tshwm sim uas tuaj yeem pom nyob rau hauv feem ntau pob zeb thiab av. Nws yog dav siv nyob rau hauv ntau yam lag luam vim nws cov tshuaj lom neeg thiab lub cev muaj zog, nrog rau nws lub peev xwm los ua tus neeg sawv cev kom qhuav thiab tiv thaiv corrosion. Ib qho kev siv ntau tshaj plaws ntawm silica yog nyob rau hauv kev tsim cov tshuaj tiv thaiv corrosive, qhov twg nws yog siv los ua cov khoom tseem ceeb hauv kev tsim cov xim zoo nkauj thiab cov txheej txheem.
Silica yog ib qho tseem ceeb tshaj plaws ntawm cov tshuaj tiv thaiv corrosive vim tias nws muaj peev xwm los tsim ib qho kev tiv thaiv kev tiv thaiv ntawm lub substrate. Thaum ntxiv rau txheej txheej, silica hais pib kho thiab tsim cov txheej txheem uas ua rau muaj kev cuam tshuam rau cov dej noo, oxygen, thiab lwm yam corrosive. Qhov teeb meem no tiv thaiv lub substrate los ntawm xeb, corroding, los yog deteriorating nyob rau hauv lub sij hawm, xyuas kom meej tias cov coatings nyob twj ywm thiab kav ntev.
Sib nrug los ntawm kev tiv thaiv corrosion, kev siv silica hauv cov txheej txheem tiv thaiv corrosive kuj tseem txhim kho kev ua tau zoo thiab kev ua tau zoo ntawm cov txheej txheem. Silica txhim khu lub hardness thiab abrasion tsis kam ntawm cov txheej, ua kom nws ruaj thiab resistant rau hnav thiab tsim kua muag. Nws kuj tseem txhim kho cov tshuaj lom neeg thiab thermal stability ntawm cov txheej, ua rau nws tiv taus qhov kub thiab txias, hnyav tshuaj, thiab raug tshav ntuj.
Thaum kawg, qhov sib ntxiv ntawm silica rau anti-corrosive coatings kuj txhim kho lawv cov khoom adhesion, tso cai rau lawv lo zoo dua rau cov substrate. Qhov no txhim kho adhesion kom ntseeg tau tias cov txheej nyob ruaj khov nyob rau hauv qhov chaw thiab tsis tev lossis nti tawm yooj yim, muab kev tiv thaiv siab tshaj plaws rau lub substrate.
Hauv kev xaus, kev siv silica hauv cov txheej txheem tiv thaiv corrosive yog ib kauj ruam tseem ceeb hauv kev ua kom lawv cov kev ua tau zoo thiab kev ua haujlwm ntev. Los ntawm kev tsim cov kev tiv thaiv kev tiv thaiv, txhim kho kev ua haujlwm ntev thiab tsis kam hnav thiab tsim kua muag, txhim kho kev ruaj ntseg, thiab txhim kho adhesion, silica plays lub luag haujlwm tseem ceeb hauv kev tsim cov txheej txheem ua haujlwm siab tiv thaiv corrosive.