qhia
Kev tsim kho kev lag luam tau ua kom muaj kev vam meej nyob rau xyoo tas los no, nrog rau kev tsom mus rau kev txhim kho kev ua tau zoo, durability thiab sustainability ntawm cov khoom siv hauv tsev. Hydroxypropyl methylcellulose (HPMC) tau dhau los ua ntau yam ntxiv hauv gypsum hmoov-raws li cov ntaub ntawv hauv tsev, muab ntau cov txiaj ntsig uas pab txhim kho tag nrho cov khoom zoo thiab kev ua haujlwm ntawm kev tsim kho.
1. Txhim kho kev ua haujlwm
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev ntxiv HPMC rau kev tsim kho plaster yog kev txhim kho hauv kev ua haujlwm. HPMC ua raws li kev hloov kho rheology los txhim kho lub peev xwm tuav dej ntawm cov gypsum sib tov. Qhov no ua rau kom muaj kev sib luag, tswj tau zoo dua qub uas yooj yim dua rau kev thov thiab txo cov haujlwm uas yuav tsum tau ua thaum tsim kho.
2. Txhim kho adhesion
HPMC pab txhim kho cov khoom sib txuas ntawm gypsum sib tov, txhawb kev sib raug zoo ntawm cov khoom thiab ntau yam substrates. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog nyob rau hauv plastering thiab rendering daim ntaub ntawv uas muaj zog adhesion yog ib qho tseem ceeb rau lub neej ntev thiab stability ntawm lub tiav lawm nto. Cov ntawv cog lus txhim kho kuj txo qhov peev xwm rau kev tawg thiab delamination.
3. Kev tuav dej
Kev tuav dej yog qhov tseem ceeb hauv cov khoom siv hauv tsev gypsum. HPMC muaj txiaj ntsig ua kom muaj peev xwm tuav dej ntawm qhov sib tov, tiv thaiv kom qhuav sai thiab ua kom cov txheej txheem dej zoo sib xws. Qhov no muaj txiaj ntsig tshwj xeeb hauv cov cheeb tsam uas muaj kev hloov pauv huab cua, vim nws muab lub qhov rais dav rau kev tsim kho thiab ua tiav.
4. Tswj lub sijhawm coagulation
Gypsum-raws li cov ntaub ntawv feem ntau xav tau lub sijhawm tshwj xeeb kom ua tiav lub zog zoo thiab kav ntev. HPMC yog ib tug txhim khu kev qha retarder uas tso cai rau kev tswj kom zoo ntawm lub sij hawm teem. Qhov no yog qhov tshwj xeeb tshaj yog rau cov kev tsim kho loj uas lub sijhawm yog qhov tseem ceeb, muab kev yooj yim thiab yooj yim ntawm kev thov.
5. Kev tiv thaiv tawg
Kev tawg yog ib qho teeb meem tshwm sim hauv kev tsim kho thiab HPMC ua lub luag haujlwm tseem ceeb hauv kev txo cov teeb meem no. Los ntawm kev ua kom tag nrho qhov yooj yim thiab tensile lub zog ntawm cov gypsum mix, HPMC pab txo qhov tsim ntawm cov kab nrib pleb, ua kom lub neej ntev thiab kev ncaj ncees ntawm lub tsev tiav.
6. Txhim kho cov kav ntev
Kev koom ua ke HPMC rau hauv gypsum hmoov qauv ua kom muaj zog tag nrho ntawm cov khoom kawg. Txhim kho adhesion, txo qhov tawg thiab tswj lub sij hawm sib xyaw ua ke los ua kom cov khoom siv hauv tsev tuaj yeem tiv taus ib puag ncig thiab kev ntxhov siab ntawm cov qauv, ua rau lub neej ua haujlwm ntev.
7. Kev siv ntau yam
HPMC kev sib raug zoo nrog ntau yam additives thiab cov ntaub ntawv tsim kho ua rau nws muaj ntau yam. Nws ua ke seamlessly rau hauv plaster-raws li formulations thiab muaj ntau yam kev siv xws li plastering, skimming, sib koom ua ke thiab nws tus kheej-leveling underlayments. Qhov kev ua tau zoo no ua rau HPMC thawj qhov kev xaiv rau cov neeg cog lus thiab cov neeg tsim khoom nrhiav kev txhim khu kev qha, hloov pauv kev tsim kho.
8. Sustainability
Raws li kev tsim kho kev lag luam sib zog ua kom muaj kev ruaj ntseg ntau dua, kev siv cov khoom siv hauv ib puag ncig tau dhau los ua qhov tseem ceeb. HPMC yog muab los ntawm cov nroj tsuag txuas ntxiv dua tshiab thiab ua raws li kev lag luam cov hom phiaj kev ruaj ntseg. Nws biodegradability thiab tsis tshua muaj kev cuam tshuam ib puag ncig ua rau nws xaiv eco-friendly rau kev tsim kho cov phiaj xwm txhawm rau txo lawv cov pa roj carbon hneev taw.
9. ruaj khov zoo
Kev siv HPMC hauv kev tsim kho plaster ua kom muaj qhov zoo sib xws thiab kwv yees tau zoo ntawm cov khoom kawg. Kev tswj lub sij hawm, txhim kho kev ua haujlwm thiab txhim kho adhesion ua kom yooj yim daim ntawv thov, txo cov peev xwm rau qhov tsis xws luag thiab inconsistencies hauv cov qauv tiav.
10. Nqi-zoo
Thaum tus nqi pib yuav yog qhov kev txiav txim siab, cov txiaj ntsig ntev ntawm kev siv HPMC hauv kev tsim kho plaster feem ntau tshaj qhov peev. Kev ua kom ruaj khov thiab txo qhov kev xav tau ntawm kev kho lossis kev saib xyuas ua rau muaj kev txuag nyiaj mus sij hawm ntev, ua rau nws muaj kev xaiv nyiaj txiag zoo rau kev tsim kho cov haujlwm uas lub neej ntev yog qhov tseem ceeb.
nyob rau hauv xaus
Hauv kev xaus, kev koom ua ke ntawm hydroxypropyl methylcellulose (HPMC) rau hauv gypsum hmoov av siv coj ntau qhov zoo kom tau raws li qhov xav tau hloov pauv ntawm kev tsim kho kev lag luam. Los ntawm kev txhim kho kev ua haujlwm thiab kev ua kom zoo rau kev tswj xyuas lub sijhawm thiab txhim kho kev ruaj khov, HPMC ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm thiab kev ua haujlwm zoo ntawm cov khoom siv hauv tsev gypsum. Raws li kev lag luam txuas ntxiv mus txais kev tsim kho tshiab, HPMC sawv tawm raws li kev txhim khu kev qha thiab ntau yam ntxiv uas ua rau muaj kev vam meej ntawm ntau yam kev tsim kho thoob ntiaj teb.
Post lub sij hawm: Dec-04-2023