Vitamin ether yog feem ntau siv additive nyob rau hauv qhuav hmoov mortar.Hydroxypropyl methyl cellulose ether plays lub luag haujlwm tseem ceeb hauv cov hmoov qhuav mortar.Tom qab cov cellulose ether nyob rau hauv lub mortar yog yaj nyob rau hauv dej, cov kua nplaum yog guaranteed vim lub nto kev ua si.Cov khoom siv coagulant tau zoo thiab sib npaug sib npaug hauv lub cev, thiab hydroxypropyl methylcellulose ether, ua ib qho kev tiv thaiv colloid, "wraps" cov khoom siv thiab tsim ib txheej ntawm lubricating zaj duab xis rau ntawm nws sab nrauv, ua rau cov mortar system ruaj khov thiab txhim kho cov khoom. fluidity ntawm mortar thaum lub sij hawm sib tov thiab smoothness ntawm kev tsim kho.
Vim nws tus kheej cov qauv molecular, cov tshuaj cellulose ether ua rau cov dej hauv mortar tsis yooj yim rau poob, thiab maj mam tso nws nyob rau lub sij hawm ntev, endowing lub mortar nrog zoo tuav dej thiab ua hauj lwm.Kev tuav dej ntawm hydroxypropyl methyl cellulose ether: Nws yog qhov tseem ceeb tshaj plaws thiab qhov taw qhia yooj yim.Kev tuav dej yog hais txog cov dej uas cov khoom sib xyaw tshiab tuaj yeem khaws tau tom qab ua haujlwm capillary ntawm lub hauv paus absorbent.Cov kev ntsuas hauv qab no rau kev tuav dej ntawm cellulose ether yog sau tseg rau kev sib tham.
Vacuum method
Thaum lub sij hawm kev sim, sau lub Buchner funnel nrog mortar tov nrog dej, muab tso rau hauv lub suction lim lub raj mis, pib lub tshuab nqus tsev twj tso kua mis, thiab ua suction filtration rau 20 feeb nyob rau hauv lub siab tsis zoo ntawm (400 ± 5) mm Hg.Tom qab ntawd, raws li tus nqi ntawm cov dej hauv slurry ua ntej thiab tom qab nqus pom, xam cov dej tuav tus nqi raws li hauv qab no.
lim ntawv txoj kev
Kev tuav dej ntawm cellulose ether yog txiav txim los ntawm kev nqus dej ntawm cov ntawv lim.Nws yog tsim los ntawm ib lub nplhaib hlau kuaj pwm nrog rau qhov siab, lim ntawv thiab lub khob txhawb nqa phaj.Muaj 6 txheej ntawm cov ntawv lim hauv qab cov pwm kuaj, ntawm cov thawj txheej yog cov ntawv lim ceev, thiab lwm 5 txheej yog lim ntawv qeeb.Siv qhov sib npaug ntawm qhov ntsuas kom ua ntej ntsuas qhov hnyav ntawm lub pallet thiab 5 txheej ntawm cov ntawv lim qeeb, ncuav lub mortar rau hauv cov pwm kuaj tom qab sib tov thiab txhuam nws tiaj tus, thiab muab tso rau 15 feeb: tom qab ntawd ntsuas qhov hnyav ntawm lub pallet thiab lub 5 txheej ntawm qeeb lim ntawv hnyav.
Post lub sij hawm: Apr-23-2023