Raws li cov tshuaj tiv thaiv carbonization zuj zus, cov ntsiab lus silica gel nce, ua raws li cov dej dawb evaporation thiab lub cev qhuav dej ntawm silica gel rau hauv cov khoom kom coagulate thiab tawv.
1. qeeb. Txij li thaum lub concentration ntawm CO2 nyob rau hauv cov huab cua yog tsawg, cov tshuaj tiv thaiv carbonization thiab tag nrho cov condensation thiab solidification txheej txheem yog qeeb heev.
2. Ntim shrinkage.
3. Tsawg zog.
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Tus nqi ntawm sodium fluorosilicate feem ntau yog los ntawm 12% mus rau 15%. Qhov ntau npaum yog me me, lub coagulation thiab solidification yog qeeb, thiab lub zog yog tsawg; Yog hais tias tus nqi ntau dhau lawm, lub coagulation hardening yog ceev heev, kev tsim kho kev lag luam tsis yooj yim, thiab thaum ntxov zog tom qab hardening yog siab, tab sis lub zog lig yog obviously txo. Yog li ntawd, tus nqi ntawm curing agent yuav tsum nruj me ntsis tswj thaum siv, thiab nws yuav tsum tau kho kom tsim nyog nyob rau hauv lub saum toj no ntau yam raws li kub, av noo, modulus thiab ceev ntawm iav dej. Ntawd yog: qhov kub thiab txias yog qhov siab, lub modulus loj, thiab qhov kev txwv qis yog xaiv thaum qhov ceev yog qhov tsawg, thiab rov ua dua.
Instant hmoov
Instant hmoov sodium silicate tseem hu ua instant saponin thiab hydrated sodium silicate. Cov khoom yog dawb nyob rau hauv tsos, powdery thiab muaj zoo uniformity. Nws yooj yim heev rau kev thauj, khaws cia thiab siv, tshwj xeeb tshaj yog tsim rau kev siv tshuab thiab automation. Siv dav hauv metallurgy, hluav taws xob fais fab, petrochemical thiab cov khoom siv hauv tsev. Nws yog siv los ua cov ntawv khi rau hauv cov khoom siv tsis zoo, cov tshuaj ntxuav tes, tshuaj tua kab mob, cov neeg ua kom qhuav sai thiab cov neeg ua haujlwm ntxiv rau hauv cov xab npum thiab cov kua qaub-resistant cement, nplua ceramics kev lag luam thiab precision casting kev lag luam. Cov khoom lag luam tam sim no sodium silicate kuj muaj tag nrho cov khoom thiab kev siv cov kua saponin. Lub instant hmoov sodium silicate muaj ib tug molecular mis ntawm Na2O·mSiO2·nH2O, thiab tus nqi yog feem ntau ntawm 280 thiab 350. Piv nrog rau cov anhydrous hmoov sodium silicate uas yog mechanically pulverized, lub qub muaj ntau yam khoom muaj nqis xws li dej dissolution tus nqi thiab kev huv. Cov hmoov sodium silicate tam sim no yog cov khoom siv tshuaj zoo, uas tau txais los ntawm cov txheej txheem qhuav (Glauber' txoj kev ntsev, txoj kev dej qab ntsev), cov saponin los ntawm kev ua tshuaj, pom, hloov pwm, tshuaj tsuag kom qhuav. thiab zoo li.
