Hydroxypropyl methylcellulose yog siv (HPMC) yog ib qho tshuaj hloov kho cellulose uas tau siv dav hauv kev tsim kho kev lag luam rau nws cov khoom zoo heev.
1. Cov ntsiab lus ntawm kev ua tau zoo
HPMC yog non-toxic, tsw, nonionic cellulose ether nrog dej solubility zoo thiab adhesiveness. Nws cov khoom tseem ceeb muaj xws li:
Thickening: Nws tuaj yeem ua kom cov viscosity ntawm cov tshuaj thiab txhim kho cov khoom siv hauv tsev.
Kev tuav dej: Nws muaj peev xwm tuav tau dej zoo heev thiab tuaj yeem txo cov dej poob.
Adhesion: Txhim kho qhov adhesion ntawm cov khoom siv hauv tsev thiab cov substrates.
Lubricity: Txhim kho smoothness thiab yooj yim ntawm kev khiav hauj lwm thaum lub sij hawm tsim kho.
Huab cua tsis kam: ruaj khov ua haujlwm nyob rau hauv siab lossis qis kub.
2. Cov ntawv thov tshwj xeeb hauv kev tsim kho kev lag luam
2.1. Cement mortar
Hauv cov cement mortar, HPMC feem ntau yog siv los ua cov dej tuav thiab cov thickener. Nws tuaj yeem tiv thaiv cov mortar los ntawm kev tawg thiab lub zog poob vim yog dej evaporation sai, thiab tib lub sijhawm txhim kho kev tsim kho kev ua tau zoo thiab muaj peev xwm tiv thaiv sagging. Mortar nrog cov dej ruaj khov yog tshwj xeeb tshaj yog tsim rau kev tsim kho hauv qhov kub thiab txias thiab tsis muaj av noo ib puag ncig.
2.2. Cov nplaum nplaum
Cov nplaum nplaum yuav tsum muaj kev sib raug zoo siab thiab yooj yim ntawm kev tsim kho, thiab HPMC plays lub luag haujlwm tseem ceeb hauv qhov no. Ntawm ib sab, nws txhim kho cov txiaj ntsig kev sib txuas los ntawm kev ua kom tuab thiab tuav dej; ntawm qhov tod tes, nws txuas ntxiv lub sijhawm qhib los pab cov neeg ua haujlwm los kho cov pobzeb ceramic nyob rau lub sijhawm ntev dua.
2.3. Putty hmoov
Raws li cov khoom siv phab ntsa, kev tsim kho thiab kev ua tiav cov khoom zoo ntawm cov hmoov putty yog ze ze rau lub luag haujlwm ntawm HPMC. HPMC tuaj yeem txhim kho qhov smoothness thiab dej tuav ntawm putty hmoov, tiv thaiv phab ntsa tawg thiab hmoov, thiab txhim kho cov kav ntev thiab zoo nkauj ntawm cov khoom tiav.
2.4. Cov khoom siv gypsum
Hauv gypsum-based self-leveling thiab caulking gypsum, HPMC muab cov khoom ua kom tuab thiab dej tuav tau zoo, txhim kho qhov shrinkage tsis kam thiab kev tsim ua haujlwm ntawm cov khoom gypsum, thiab tsis txhob tawg thiab tsis muaj zog los ntawm kev poob dej ntau dhau.
2.5. Waterproof txheej
HPMC tuaj yeem siv los ua cov thickener thiab stabilizer rau cov txheej txheem dej tsis zoo, muab cov txheej txheem zoo dua rheology thiab zaj duab xis-tsim cov khoom kom ntseeg tau tias qhov sib xws thiab adhesion ntawm txheej.
2.6. Txau plaster thiab txau mortar
Hauv kev siv tshuaj txau, HPMC muab cov dej ntws zoo thiab kev ua haujlwm zoo, thaum txo qis sag thiab delamination tshwm sim, txhim kho kev ua tau zoo thiab zoo ntawm kev siv tshuaj tsuag.
2.7. Sab nrauv phab ntsa rwb thaiv tsev
Nyob rau sab nrauv phab ntsa rwb thaiv tsev, cov dej tuav thiab cov khoom tiv thaiv plam ntawm HPMC ua lub luag haujlwm tseem ceeb hauv kev sib txuas thiab plastering mortars. Nws tuaj yeem txhim kho kev tsim kho kev ua haujlwm ntawm mortar thiab ua kom muaj kev ruaj ntseg thiab ua haujlwm ntev ntawm cov rwb thaiv tsev.
3. Qhov zoo ntawm HPMC hauv kev tsim kho kev lag luam
Kev txhim kho kev tsim kho: Kev sib ntxiv ntawm HPMC ua rau cov khoom siv hauv tsev ua haujlwm tau zoo dua, kev tsim kho kom zoo dua qub, thiab cov khoom pov tseg thiab kev tsim kho nyuaj raug txo.
Txo cov teeb meem zoo: Tom qab cov dej khaws cia thiab adhesion zoo dua, cov khoom siv yuav muaj teeb meem tsawg dua xws li tawg thiab delamination, txhim kho cov khoom tiav.
Kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig: Kev ua haujlwm siab ntawm HPMC txhim kho cov khoom siv tau zoo, txo cov peev txheej pov tseg los ntawm kev tsim kho dua, thiab muaj txiaj ntsig zoo rau kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig.
Kev tswj hwm tus nqi: Los ntawm kev txhim kho cov khoom siv, tus nqi ntawm kev saib xyuas tom qab thiab kev hloov pauv yog txo, ua rau nws pheej yig heev.
4. Txoj kev loj hlob yav tom ntej
Raws li kev tsim kho kev lag luam qhov kev thov rau kev ua haujlwm siab thiab cov ntaub ntawv ntsuab ib puag ncig tus phooj ywg nce, lub peev xwm ntawm HPMC hauv kev hloov kho thiab cov ntawv thov sib xyaw tseem tab tom tshawb nrhiav. Piv txwv li, kev sib txuas HPMC nrog rau lwm cov tshuaj hloov kho los tsim cov qauv tshwj xeeb rau cov ntawv thov sib txawv yog qhov tseem ceeb rau kev txhim kho yav tom ntej. Tsis tas li ntawd, ntxiv kev txhim kho nws cov kev ua tau zoo stability thiab ntau lawm efficiency los ntawm cov txheej txheem optimization kuj yog lub hom phiaj ntawm kev lag luam kev tshawb fawb.
Hydroxypropyl methylcellulose plays lub luag haujlwm tseem ceeb hauv kev tsim kho kev lag luam vim nws cov khoom zoo heev. Los ntawm cov cement mortar mus rau pobzeb nplaum, los ntawm cov hmoov putty rau waterproof txheej, daim ntawv thov ntawm HPMC npog tag nrho cov khoom ntawm lub tsev. Nyob rau hauv lub neej yav tom ntej, nrog rau kev nce qib ntawm kev siv technology thiab in-debth daim ntawv thov, HPMC yuav ua lub luag hauj lwm tseem ceeb nyob rau hauv kev pab rau kev tsim kho kev lag luam ua tau zoo, tsawg zog noj thiab ntsuab ib puag ncig tiv thaiv cov hom phiaj.
Post lub sij hawm: Dec-26-2024