HPMC thiab putty hmoov

1. Lub luag haujlwm tseem ceeb ntawm daim ntawv thov ntawm HPMC hauv putty hmoov yog dab tsi?Puas muaj tshuaj tiv thaiv?

—— Lus Teb: Hauv cov hmoov putty, HPMC plays peb lub luag hauj lwm ntawm thickening, dej tuav thiab kev tsim kho.Thickening: Cellulose tuaj yeem ua kom tuab kom tshem tawm thiab ua kom cov tshuaj sib txawv nce thiab nqis, thiab tiv thaiv sagging.Kev tuav dej: ua kom cov hmoov putty qhuav maj mam, thiab pab cov hmoov tshauv calcium kom hnov ​​​​mob hauv qab dej.Kev tsim kho: Cellulose muaj cov nyhuv lubricating, uas tuaj yeem ua rau cov hmoov putty muaj kev tsim kho zoo.HPMC tsis koom nrog cov tshuaj tiv thaiv, tab sis tsuas yog ua lub luag haujlwm pabcuam.Ntxiv dej rau cov hmoov putty thiab muab tso rau ntawm phab ntsa yog cov tshuaj tiv thaiv, vim hais tias cov tshuaj tshiab yog tsim.Yog tias koj tshem cov hmoov putty rau ntawm phab ntsa ntawm phab ntsa, zom rau hauv cov hmoov, thiab siv nws dua, nws yuav tsis ua haujlwm vim tias cov tshuaj tshiab (calcium carbonate) tau tsim.) thiab.Cov khoom tseem ceeb ntawm cov hmoov tshauv calcium hmoov yog: sib tov ntawm Ca (OH) 2, CaO thiab ib qho me me ntawm CaCO3, CaO H2O = Ca(OH) 2 —Ca(OH)2 CO2 = CaCO3↓ H2O Lub luag hauj lwm ntawm tshauv calcium Nyob rau hauv CO2 hauv dej thiab huab cua Nyob rau hauv cov xwm txheej no, calcium carbonate yog tsim, thaum HPMC tsuas yog khaws cov dej, pab cov tshuaj tiv thaiv zoo dua ntawm cov hmoov tshauv calcium, thiab tsis koom nrog cov tshuaj tiv thaiv nws tus kheej.

2. Tus nqi ntawm HPMC ntxiv rau hauv cov hmoov putty yog dab tsi?

—— Lus Teb: Tus nqi ntawm HPMC siv rau hauv cov ntawv thov sib txawv nyob ntawm qhov kev nyab xeeb, qhov kub thiab txias, qhov zoo ntawm cov hmoov tshauv hauv zos, cov mis ntawm cov hmoov putty thiab "zoo xav tau los ntawm cov neeg siv khoom".Feem ntau hais lus, nruab nrab ntawm 4 kg thiab 5 kg.Piv txwv li: feem ntau ntawm cov hmoov putty nyob rau hauv Beijing yog 5 kg;feem ntau ntawm cov hmoov putty hauv Guizhou yog 5 kg nyob rau lub caij ntuj sov thiab 4.5 kg nyob rau lub caij ntuj no;Tus nqi ntawm putty nyob rau hauv Yunnan yog me me, feem ntau 3 kg mus rau 4 kg, thiab lwm yam.

3. Dab tsi yog qhov viscosity ntawm HPMC hauv putty hmoov?

—— Lus Teb: Feem ntau, 100,000 yuan yog txaus rau cov hmoov putty, thiab cov yuav tsum tau rau mortar yog siab dua, thiab 150,000 yuan yuav tsum tau siv yooj yim.Ntxiv mus, qhov tseem ceeb tshaj plaws ua haujlwm ntawm HPMC yog dej tuav, ua raws li thickening.Hauv cov hmoov putty, tsuav yog cov dej tuav tau zoo thiab cov viscosity tsawg (70,000-80,000), kuj tseem tuaj yeem ua tau.Tau kawg, qhov siab dua qhov viscosity, qhov zoo dua qhov txheeb ze dej tuav.Thaum lub viscosity siab tshaj 100,000, lub viscosity yuav cuam tshuam cov dej tuav.Tsis ntau ntxiv lawm.

4. Vim li cas cov hmoov putty ua npuas ncauj?

—— Lus Teb: Phenomenon: npuas yog tsim thaum lub sij hawm tsim kho thiab tom qab lub sij hawm ntawm lub sij hawm, lub nto ntawm lub putty yog blistered.

ua rau:

1. Lub hauv paus yog ntxhib heev thiab lub plastering ceev heev;

2. Cov txheej txheej putty hauv ib qho kev tsim kho yog tuab heev, ntau dua 2.0mm;

3. Cov dej noo ntawm cov hauv paus hniav yog siab dhau, thiab qhov ntom ntom yog loj lossis me dhau.

4. Tom qab ib lub sij hawm ntawm kev tsim kho, qhov bursting thiab foaming nyob rau saum npoo yog feem ntau tshwm sim los ntawm kev sib tov tsis sib xws, thaum HPMC plays lub luag hauj lwm nyob rau hauv dej tuav, thickening thiab txhim kho kev ua hauj lwm nyob rau hauv lub putty hmoov, thiab tsis koom nyob rau hauv tej yam tshuaj tiv thaiv.

5. Dab tsi yog vim li cas rau cov hmoov tshem tawm ntawm putty hmoov?

—— Lus Teb: Qhov no feem ntau muaj feem xyuam rau tus nqi thiab qhov zoo ntawm grey calcium ntxiv.Cov ntsiab lus calcium uas tsis tshua muaj ntawm grey calcium thiab qhov tsis tsim nyog ntawm CaO thiab Ca (OH) 2 hauv cov calcium grey yuav ua rau cov hmoov tshem tawm.Nyob rau tib lub sijhawm, nws kuj tseem cuam tshuam nrog HPMC.Cov dej tuav tus nqi qis, thiab cov hmoov tshauv calcium hydration lub sij hawm tsis txaus, uas yuav ua rau cov hmoov tshem tawm.

6. Vim li cas lub putty hnyav nyob rau hauv cov txheej txheem scraping?

—— Lus Teb: Hauv qhov no, viscosity ntawm cellulose feem ntau siv yog siab dhau.Qee cov neeg tsim khoom siv 200,000 cellulose los ua putty.Lub putty ua nyob rau hauv txoj kev no muaj viscosity siab, yog li nws xav tias hnyav thaum khawb.Qhov pom zoo ntawm cov hmoov putty rau sab hauv phab ntsa yog 3-5 kg, thiab viscosity yog 80,000-100,000.