HydroxyPropyyl Methylcellulose (HPMC) yog ib qho kev hloov kho lub cev siv hluav taws xob uas tau siv dav hauv kev tsim kho rau nws cov khoom tsim tau zoo.
1. Cov kev ua haujlwm yooj yim
HPMC yog qhov tsis muaj tshuaj lom, tsis muaj ntxhiab, cov tsis muaj tshuaj lom ithere nrog cov dej solubility zoo thiab cov nplaum. Nws cov khoom tseem ceeb suav nrog:
Thickening: Nws tuaj yeem ua kom muaj kev ua kom lub viscosity ntawm kev daws teeb meem thiab txhim kho cov khoom siv hauv tsev.
Dej khaws cia: Nws muaj lub peev xwm ua tau dej zoo thiab tuaj yeem txo cov dej poob.
Adhesion: txhim kho cov nplaum ntawm cov ntaub ntawv tsim tsev thiab substrates.
Lubricity: txhim kho smoothness thiab yooj yim ntawm kev ua haujlwm thaum kev tsim kho.
Huab cua Kuj: kev ua tau ruaj khov nyob rau hauv siab lossis dej sov.
2. Cov ntawv thov tshwj xeeb hauv kev tsim kho kev tsim kho
2.1. COAT CUG
Nyob rau hauv centent cort, HPMC yog siv los ua dej tuav cov neeg sawv cev thiab cov tuab tuab. Nws tuaj yeem tiv thaiv cov kab cug ntawm kev tawg thiab lub zog poob vim yog cov dej evaporation, thiab tib lub sijhawm txhim kho kev ua haujlwm thiab tawm tsam kev muaj peev xwm. Tshuaj khib nrog lub zog dej ceev ceev yog qhov tshwj xeeb yog tsim nyog rau kev tsim kho hauv qhov kub thiab cov av noo ib puag ncig.
2.2. Vuas nplaum nplaum
Pobzeb nplaum yuav tsum muaj lub zog ua kom muaj zog thiab yooj yim ntawm kev tsim kho, thiab HPMC plays yog lub luag haujlwm tseem ceeb hauv qhov no. Ntawm ib sab tes, nws txhim kho cov nyhuv sib raug zoo los ntawm thickening thiab dej tuav; Ntawm qhov tod tes, nws txuas lub sijhawm qhib los pab cov neeg ua haujlwm los kho cov neeg ua haujlwm kom hloov cov pob txha pob txha ceramic rau lub sijhawm ntev dua.
2.3. Putty hmoov
Raws li cov khoom siv phab ntsa theem, kev tsim kho cov khoom lag luam zoo thiab cov khoom tiav zoo ntawm cov hmoov uas muaj putty muaj feem cuam tshuam nrog lub luag haujlwm ntawm HPMC. HPMC tuaj yeem txhim kho txoj kev ua kom zoo thiab dej khaws cia ntawm cov hmoov putty, tiv thaiv phab ntsa tawg thiab kev ua kom tau zoo thiab ua kom tiav ntawm cov khoom tiav.
2.4. Gypsum-based khoom
Hauv Gypsum-based tus kheej txoj kev ua kom zoo thiab cov khoom siv ua kom zoo thiab kev tsim kho cov khoom lag luam ntawm gypsum, thiab zam kev tawg thiab tsis muaj zog txaus los ntawm kev poob ntau dhau.
2.5. Waterproof Txheej
HPMC tuaj yeem raug siv los ua cov tuab thiab stabilizer rau cov kua dej waterpoof, muab cov khoom siv zoo dua qub thiab ua yeeb yaj kiab zoo dua rau cov kev sib dhos thiab cov nplaum ntawm txheej.
2.6. Txau cov roj hmab thiab cov tshuaj tsuag tsuag
Hauv cov tshuab txau, HPMC muab cov nplaim zoo thiab tso cov khoom ua tau zoo, thaum txo cov khoom lag luam sag, txhim kho kev ua haujlwm zoo, txhim kho kev ua kom zoo thiab zoo ntawm kev siv txau.
2.7. Rwb Thaiv Sab Nrauv Ntsa Rwb Thaiv Tsev
Nyob rau sab nrauv phab ntsa rwb thaiv tsev tshuab, dej khaws cia thiab tiv thaiv cov khoom poob ntawm HPMC ua lub luag haujlwm tseem ceeb hauv kev sib koom tes thiab cov plastering mortars. Nws tuaj yeem txhim kho kev tsim kho ntawm cug tshuaj khib thiab ua kom cov ruaj khov thiab ruaj khov ntawm cov txheej txheem rwb thaiv tsev.
3. Qhov zoo ntawm HPMC hauv kev tsim kho kev tsim kho
Txhim kho kev tsim kho kev tsim kho: Qhov kev sib txuas lus hauv tsev ua haujlwm ntau dua, cov txheej txheem kev tsim kho yog smoother, thiab cov khoom siv khib nyiab thiab kev siv kev ua kom raug txo qis.
Txo cov teeb meem zoo: Tom qab cov dej rov qab thiab cov khoom muaj zog tau txhim kho, cov khoom yuav muaj teeb meem tsawg dua xws li cov khoom tawg thiab kev ua tiav, txhim kho qhov zoo ntawm cov khoom tiav.
Kev tiv thaiv hluav taws xob thiab kev tiv thaiv ib puag ncig: qhov kev ua tau zoo ntawm HPMC ua cov khoom siv uas ua tau zoo, thiab muaj cov txiaj ntsig zoo ntawm kev tiv thaiv hluav taws xob thiab kev tiv thaiv ib puag ncig.
Tus nqi tswj: los ntawm kev txhim kho cov khoom siv cov khoom siv, tus nqi tom qab txij nkawm thiab hloov pauv yog txo qis, ua rau nws tau nyiaj ntau.
4. Yav Tom Ntej Kev Loj Hlob
Raws li kev tsim kho kev lag luam qhov kev thov ua tau zoo thiab cov khoom siv ntsuab cov phooj ywg nce, lub peev xwm ntawm HPMC hauv kev hloov kho thiab cov ntawv thov sib xyaw tseem raug tshawb nrhiav. Piv txwv li, ua ke HPMC nrog lwm cov tshuaj kho mob los txhim kho cov qauv tshwj xeeb rau kev thov sib txawv yog ib qho tseem ceeb rau kev txhim kho yav tom ntej. Tsis tas li ntawd, txuas ntxiv txhim kho nws cov kev ua tau zoo ruaj khov thiab ntau lawm ua haujlwm los ntawm cov txheej txheem txhim kho kuj yog kev tsom xam ntawm kev tshawb fawb kev lag luam.
HydroxyPropyyl methylcellulose ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev lag luam vim nws cov khoom zoo. Los ntawm cement colle kom cov nplais nplaum, los ntawm cov hmoov nplaum, los ntawm txheej Waterproof qub, daim ntawv thov ntawm HPMC npog txhua yam ntawm cov ntaub ntawv hauv tsev. Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib ntawm thev naus laus zis thiab qhov tob tob, HPMC yuav ua lub luag haujlwm tsim kev tsim kho kom ua tau zoo dua qub, kev tiv thaiv qis thiab ntsuab ib puag ncig kev tiv thaiv cov hom phiaj.
Lub Sijhawm Post: Dec-26-2024