Redispersible polymer hmoov (RDP) yog cov khoom tseem ceeb ua kom zoo, thiab cov hmoov nplej tawm ntawm phab ntsa, thiab cov dej tsis yeem siv, thiab yog siv dav hauv kev tsim kho tshiab hauv kev tsim kho niaj hnub no.
1. Cov khoom xaiv
Ua ntej siv cov tshuaj pleev xim polymer polymer, koj yuav tsum tau xaiv cov cai. Xaiv cov sib txawv ntawm cov hmoov yas latex raws li cov kev xav tau ntawm kev tsim kho. Piv txwv li:
Polyethylene vinyl acetate copolymer (eva): dav siv nyob rau hauv vais nplaum, cug tshuaj xaiv, thiab lwm yam.
Ethylene-acrylic acid copolymer (VAE): feem ntau yog siv hauv kev sib cais pem teb thiab rwb thaiv tsev system los txhim kho kev coj ua thiab tawg tsis kam.
Acrylic Copolymer: Siv rau hauv siab-zog sijhawm, xws li sab nrauv phab ntsa rwb thaiv tsev rwb thaiv tsev, nrog cov dej ntws tawm zoo thiab huab cua tsis kam.
2. Cov qauv tsim qauv
Thaum siv cov roj polymer polymer, cov mis yuav tsum tau kho kom haum raws li txoj haujlwm ua haujlwm. Feem ntau, tus nqi ntawm cov hmoov zoo ntxiv yog nruab nrab ntawm 2% thiab 5% ntawm tag nrho cov hnyav ntawm cov khoom noj xis, nyob ntawm cov khoom yuav tsum tau ua. Cov kauj ruam tshwj xeeb yog raws li hauv qab no:
Kev npaj ua kom qhuav: sib xyaw ua ke, xws li quartz xuab zeb), muab tub lim (xws li cov hmoov calcium hnyav) thiab lwm yam dej qhuav raws li cov qauv sib piv.
Ntxiv cov liab recispersible polymer hmoov: sprinkle lub latas hmoov dawb huv, thiab txuas ntxiv mus kom ntseeg tau tias cov hmoov yas thiab lwm yam qhuav tov.
Ntxiv cov cellulose ether: txhawm rau txhim kho cov dej tuav thiab tsim cov tshuaj khib nyiab ether (xws li hydroxypropylulose) feem ntau ntxiv rau cov mis.
3. Siv Kev Siv Khoom
Ua ntej kev tsim kho, xyuas kom meej tias txhua cov ntaub ntawv raw thiab cov cuab yeej npaj, thiab sib tov cov hmoov qhuav actees raws li cov mis. Thaum lub sij hawm tsim kho, cov hmoov recispersible polymer yog tom qab kev sib cuag nrog cov dej ua ke, yog li txhim kho cov nplaum thiab cov dej tsis kam ntawm lub tshuaj khib.
Kev sib xyaw: ntxiv cov dej uas tsim nyog rau cov hmoov kom qhuav, thiab do tusyees nrog ib lub tshuab ua kom zoo nkauj kom txog thaum muaj kev sib tw, cov nplais liab dawb. Lub sijhawm stirringing feem ntau yog feem ntau ntawm 3-5 feeb kom paub meej tias txhua tus hmoov tag nrho cov wetted tag nrho.
Sawv thiab loj hlob: Tom qab nplawm, cov slurry yuav tsum tau sab laug rau ob peb feeb kom paub tab los txhim kho kev tsim kho. Tom qab ntawd do me ntsis dua ua ntej siv.
4. Daim ntawv thov txoj kev
Siv cov slurry sib xyaw rau cov kev tsim kho raws li cov kev xav tau ntawm kev tsim kho. Cov Kev Siv Cov Ntawv Siv xws li:
Plastering cug: Siv tus scraper lossis trowel rau tusyees siv lub tshuaj khib rau ntawm phab ntsa saum npoo av, uas yog tsim rau sab hauv thiab sab nraud phab ntsa plastering.
Pobzeb nplaum: Siv cov hniav txhuam hniav kom siv cov nplais nplaum rau hauv cov nplais, thiab tom qab ntawd nias cov nplais ntawm cov nplaum txheej.
Kev siv tus kheej txoj kab sib nraus: ncuav lub sib xyaw ua ke colleging colling rau hauv av thiab siv nws tus kheej-leveling cov yam ntxwv los ua ib daim tiaj tiaj.
5. Kev ceev faj
Thaum siv cov roj polymer polymer, them sai sai rau cov ntsiab lus hauv qab no:
Cov xwm txheej ib puag ncig: kev tsim kho ib puag ncig yuav tsum muaj cov ntsuas kub tsim nyog thiab cov av noo kom tsis txhob muaj tus mob siab dhau los lossis qis dhau ntawm kev tshuaj khib. Cov kev tsim kho qhov hnyav yuav tsum nyob nruab nrab ntawm 5°C thiab 35°C.
Nws cov dej sib xyaw: siv dej huv si, cov dej huv rau kev sib xyaw kom tsis txhob muaj cov teeb meem dej zoo cuam tshuam.
Kev Cia Yuav Tsum: Cov hmoov uas tsis muaj zog polymer yuav tsum muab khaws cia rau hauv ib puag ncig qhuav, txias kom tsis txhob ya raws thiab kub.
Kev Hloov Kho Kev Hloov Kho: Raws li qhov xwm txheej tiag tiag, hloov tau cov nyiaj ntawm cov liab liab polymer hmoov ntxiv kom ua tiav cov nyhuv zoo tshaj plaws.
6. Kev sim tshuaj thiab tu
Tom qab txoj kev tsim kho tiav, kev sib khib heev yuav tsum tau kuaj xyuas qhov ua tau zoo, lub zog ua kom muaj zog, thiab lwm yam, kom ntseeg tau tias nws ua tau raws li kev tsim khoom lag luam engineering. Nyob rau tib lub sijhawm, cov nplaim tom qab kev tsim kho yuav tsum tau tswj hwm raws li qhov tsim nyog, tshwj xeeb tshaj yog nyob rau hauv cov dej kub siab lossis ua kom dej paug thiab tshuaj khib tawg.
Raws li lub tsev tseem ceeb ntxiv, redispersible polymer hmoov ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov nplaum, hloov thiab lub cug cug. Qhov tseeb xaiv thiab siv cov hmoov polymer polymer tuaj yeem tsis tau txhim kho kom zoo, tab sis kuj txuas txoj haujlwm lub neej ntawm lub tsev. Hauv daim ntawv thov tiag tiag, cov neeg ua haujlwm tsim kho yuav tsum ua raws li cov qauv tsim qauv thiab kev tsim kho cov kev tsim kho kom ntseeg tau tias muaj kev txhim kho ntawm kev ua lag luam zoo.
Lub Sijhawm Post: Feb-17-2025