Ethyl silicate: Ib yam khoom siv khawv koob hauv kev lag luam

Hauv lub ntiaj teb dav dav ntawm cov ntaub ntawv kev lag luam, ethyl silicate sawv tawm ua lub hnub qub ci ntsa iab, coj kev tsim kho tshiab thiab kev tawg rau ntau lub lag luam nrog nws cov khoom tshwj xeeb thiab ntau yam kev siv. Ethyl silicate yog cov kua tsis muaj xim thiab pob tshab ntawm chav tsev kub thiab muaj ntxhiab tshwj xeeb. Hauv ib puag ncig tsis muaj dej, nws ruaj khov thiab txhim khu kev qha. Txawm li cas los xij, thaum nws los rau hauv kev sib cuag nrog dej, nws yuav ua kom zoo rau hauv ethanol thiab silicic acid, thiab maj mam dhau los ua turbid hauv huab cua noo. Cov khoom zoo kawg no ua rau nws ua lub luag haujlwm tseem ceeb hauv ntau yam tshuaj lom neeg thiab kev npaj cov khoom siv. Nws yooj yim yaj hauv cov kuab tshuaj organic xws li cawv thiab ether, nrog rau cov mis molecular ntawm, qhov taw tes yaj qis li, thiab qhov taw tes npau ntawm. Los ntawm qhov kev xav ntawm txoj kev npaj, nws tau txais kev ua tib zoo los ntawm kev distillation tom qab kev sib cuam tshuam ntawm silicon tetrachloride thiab anhydrous ethanol. Cov txheej txheem npaj ua kom zoo no ua kom muaj qhov zoo thiab ruaj khov ntawm ethyl silicate. Hauv kev siv tiag tiag, ethyl silicate tuaj yeem suav tias yog "jack ntawm txhua qhov kev lag luam". Hauv kev lag luam ntawm cov txheej txheej, nws yog cov khoom siv tseem ceeb rau kev tsim cov txheej txheej uas tiv taus cua sov thiab tshuaj lom neeg. Hauv Nyiv Pooj, txog li 90% ntawm ethyl silicate yog siv ua cov khoom siv rau kev tiv thaiv xeb (xim nplua nuj zinc). Tom qab txau, cov pab pawg alkoxy hauv nws cov qauv molecular tuaj yeem nqus cov dej noo los ntawm huab cua thiab dhau los ntawm hydrolysis reactions, cross-linking thiab kho kom tsim cov polymers siloxane siab, uas tsim kom muaj kev tiv thaiv zoo rau cov txheej txheej. Lub caij no, cov hmoov zinc hauv cov txheej txheej ua lub luag haujlwm tiv thaiv electrochemical. Cov khoom xeb sau cov qhov khoob ntawm cov zaj duab xis txheej, thaiv kev yaig ntawm cov xov xwm phem, tso cai rau cov khoom coated kom tswj tau lub xeev zoo rau lub sijhawm ntev txawm tias nyob hauv qhov chaw nyuaj. Nws yog siv dav hauv kev tsim nkoj, petrochemicals, offshore chaw thiab lwm yam teb. Hauv kev lag luam precision casting, ethyl silicate yog qhov tseem ceeb dua. Raws li tus binder rau cov pwm xuab zeb, nws tuaj yeem tsim cov tshuaj uas muaj peev xwm sib txuas zoo tom qab hydrolysis. Thaum sib xyaw nrog cov khoom siv refractory rau kev kho cov xuab zeb casting molding, tom qab ziab, ib daim zaj duab xis uas tiv taus kub thiab zoo demolding property yog tsim rau ntawm qhov chaw ntawm cov xuab zeb molding, ua rau qhov chaw ntawm casting du thiab qhov tseeb ntawm qhov ntev heev. Nws yog qhov tsim nyog tshwj xeeb rau kev tsim cov khoom precision hauv aerospace thiab lwm yam teb. Tsis yog li ntawd xwb, ethyl silicate tuaj yeem siv ua cov khoom siv rwb thaiv tsev hauv kev lag luam hluav taws xob, muab kev lees paub rau kev ua haujlwm ruaj khov ntawm cov khoom siv hluav taws xob. Nws yog siv los ua cov iav optical, uas tuaj yeem ua rau nws lub teeb transmittance ntau dua thiab muab cov cuab yeej optical ib qho "field of view" meej dua. Cov hmoov silica zoo heev uas tsim tom qab hydrolysis tiav tseem yog cov khoom siv raw tseem ceeb rau kev tsim cov phosphors. Nws kuj tseem tuaj yeem siv rau hauv cov organic synthesis los npaj cov tshuaj silicone thiab yog cov khoom siv raw tseem ceeb rau cov roj silicone, ua lub luag haujlwm tseem ceeb hauv ntiaj teb ntawm cov ntaub ntawv silicone. Kev xaiv ethyl silicate txhais tau tias xaiv cov kev daws teeb meem kev lag luam zoo thiab ua tau zoo. Txawm nws yog txhim kho kev ua tau zoo thiab kev ua haujlwm ntawm koj cov khoom lossis nthuav dav cov teb ntawm cov ntaub ntawv siv, ethyl silicate tuaj yeem txhaj tshuaj muaj zog rau hauv koj cov khoom lag luam, pab koj sawv tawm hauv kev lag luam thiab tsim ntau yam ua tau!