HPMC (HydroxyPropyyl methylcellulose) yog ib qho tseem ceeb ntau cov tshuaj lom neeg ntxiv uas tau siv dav hauv cov ntaub ntawv hauv tsev, tshwj xeeb yog kev txhim kho lub tsev ua haujlwm. Kev siv HPMC ua rau cov ntaub ntawv tsim lub tsev los nthuav qhia cov khoom siv lub cev zoo thaum lub sijhawm tsim kho thiab ntev.
1. Cov yam ntxwv yooj yim thiab kev siv tshuab ntawm kev ua ntawm HPMC
HPMC yog ib nrab hluavtaws polymer tau los ntawm cov nroj tsuag cog los ntawm kev ua tshuaj lom neeg. Nws cov qauv tshuaj lom neeg muab nws cov dej zoo khaws cia, viscosity hloov muaj peev xwm, ua yeeb yaj kiab zaj duab xis, shrinkage tsis kam thiab lwm yam khoom. Cov khoom no ua rau nws tshwj xeeb tseem ceeb hauv kev tsim kho kev tsim kho. Lub luag haujlwm ntawm HPMC feem ntau tau muab ntau ntxiv hauv txoj kev hauv qab no:
Dej khaws cia: HPMC muaj cov khoom siv dej evape, uas tuaj yeem txo cov dej evapores thiab kom ntseeg tau cov tshuaj xis thiab cug cov txheej txheem tawv. Kev haus dej kom zoo tsis tsuas yog txhim kho lub zog ntawm cov khoom, tab sis kuj tau txo qhov tshwm sim ntawm cov kab nrib pleb.
Tsevneeg ua daim ntawv sib khi lus: raws li tuab thiab stabilizer, HPMC tuaj yeem txhim kho txoj kev sib raug zoo ntawm cov ntaub ntawv hauv tsev. Nws cov nyhuv tuab ua rau lub tshuaj khib, putty, pleev xim thiab lwm yam ntaub ntawv ntau niaj hnub ua rau kev tsim kho, ua kom yooj yim rau kev tshaj tawm thiab tsis tshua pom kev.
Txhim kho kev tsim kho kev tsim kho: HPMC tuaj yeem txhim kho kev ua lag luam kev tsim kho ntawm cov ntaub ntawv hauv tsev los ntawm kev hloov kho lawv li. Thaum lub sij hawm tsim kho vaj tse, HPMC tuaj yeem txhim kho kom haum rau lub fluidity thiab wormorability ntawm cov ntaub ntawv, txuas lub sijhawm qhib dua tshiab, thiab txhawb cov neeg ua haujlwm los kho cov kev tsim kho.
Anti-Sag-Sag: HPMC nce cov khoom siv hauv tsev, tshwj xeeb tshaj yog nyob hauv cov dav hlau ntsug lossis cov ntaub ntawv tiv thaiv kom tsis txhob muaj kev sib zog thiab ua kom muaj qhov tseeb ntawm kev tsim kho.
2. Daim ntawv thov ntawm HPMC hauv cov ntaub ntawv sib txawv hauv tsev
HPMC tau siv dav hauv ntau cov ntaub ntawv hauv tsev, thiab cov khoom sib txawv hauv tsev muaj cov sib txawv thiab kev ua haujlwm rau HPMC. Lub luag haujlwm ntawm HPMC yuav sib tham hauv qab no los ntawm ntau cov ntaub ntawv hauv tsev.
2.1 CUG CUG
Nyob rau hauv Caas Enfars, muaj nuj nqi ntawm HPMC yog txhawm rau txhim kho cov dej khaws cia thiab txhim kho kev tsim kho. Nws ua rau qeeb qeeb ntawm cov dej evapororation kom cov Maas tau muaj cov dej noo txaus thaum lub sijhawm xyaum ua kom muaj zog thiab muaj zog ruaj khov. Tsis tas li ntawd, kev siv HPMC tuaj yeem txhim kho kev ua haujlwm ntawm lub tshuaj khib, ua kom yooj yim dua rau cov neeg ua haujlwm kom ua cov scraping thiab cov haujlwm smoothing.
2.2 Pobzeb Adhesive
Ceramic pobzeb nplaum yuav tsum tau ua kom zoo ua kev sib raug zoo thiab swb tsis kam, thiab HPMC ua si lub luag haujlwm tseem ceeb hauv qhov no. Los ntawm kev nce viscosity ntawm cov nplais nplaum, HPMC tuaj yeem tiv thaiv cov vuas los ntawm zawv zawg vim lub ntiajteb txawj nqus tom qab daim ntawv thov. Tsis tas li ntawd, HPMC tuaj yeem txhim kho cov wettability thiab workability ntawm cov vais nplaum, kom ntseeg tau tias cov vuas luaj muaj zog dua thaum cov txheej txheem kev tsim kho.
2.3 Kev Ntsuas Tus Kheej Pem Teb
Hauv kev txo tus kheej chav tsev, HPMC yog siv los kho cov fluidity ntawm cov khoom kom nws tuaj yeem ua kom tau ib qho chaw tiaj thaum ib txwm ua rau cov pa npuas. HPMC ua kom zoo tshaj qhov zoo tshaj qhov nyhuv nyhuv ntawm cov ntaub ntawv ntsuas tus kheej hauv lub sijhawm luv luv thiab txhim kho lawv txoj kev tiv thaiv kom hnav thiab tawg.
2.4 Putty hmoov
Raws li cov khoom kho kom zoo nkauj ntawm phab ntsa, ua kom muaj hmoov txhuas yuav tsum muaj cov nplaum zoo, tiaj thiab smoothness. Lub luag haujlwm ntawm HPMC hauv cov hmoov putty yog muab cov dej viscosity thiab cov dej ua kom tsis pom zoo thiab ua rau cov kab nrib pleb lossis ua rau cov txheej txheem kev tsim kho. Los ntawm kev siv HPMC, cov hmoov ua kom muaj cov hmoov nplaum ua kom zoo dua rau phab ntsa saum npoo av, tsim ib qho txawm tias, du txheej.
2.5 Sab Nraud phab Rwb Thaiv Tsev
Hauv phab ntsa sab nrauv phab ntsa rwb thaiv tsev tshuab, HPMC tuaj yeem txhim kho lub zog sib txuas ntawm cov kev sib txuas ntawm lub rwb thaiv tsev thiab phab ntsa. Nyob rau tib lub sijhawm, nws cov dej khaws cia kuj tseem tuaj yeem tiv thaiv cov kab cug los ntawm kev ziab tawm sai sai, txuas ntxiv nws qhib lub sijhawm, thiab txhim kho kev ua haujlwm zoo. Tsis tas li ntawd, HPMC tuaj yeem txhim kho huab cua tsis kam thiab kev laus tsis kam ntawm cov khoom, txuas ntxiv rau lub neej sab nrauv ntawm phab ntsa sab nrauv.
3. HPMC cov tub ntxhais lub zog tseem ceeb hauv kev txhim kho lub tsev ua haujlwm
3.1 Txhim kho cov ntaub ntawv hauv tsev
Los ntawm kev tswj hwm cov txheej txheem hydration ntawm cov ntaub ntawv hauv tsev, HPMC tseem nce ntxiv cov khoom siv lub zog thiab kav ntev. Tsis yog nws tsuas yog nws txo qhov tshwm sim ntawm cov kab nrib pleb, nws kuj tseem tiv thaiv qhov tsis zoo ntawm cov khoom tsim tsev tshwm sim los ntawm kev poob dej noo. Thaum siv sijhawm ntev, HPMC kuj muaj cov kev laus los tiv thaiv kev laus thiab tuaj yeem ua tau zoo txuas ntxiv lub neej ntawm lub tsev.
3.2 Txhim kho kev ua haujlwm hauv tsev
Qhov zoo heev maneuvility thiab kev mus ncig muab los ntawm HPMC ua cov neeg ua haujlwm tsim kev tsim kho kom yooj yim thaum lub sijhawm tsim kho. Tshwj xeeb tshaj yog thaum tsim ntau thaj chaw loj, cov kev sib txuam thiab kev sib txawv ntawm cov khoom ua tshwj xeeb yog qhov tseem ceeb. Los ntawm kev txuas lub sijhawm qhib, HPMC tso cai rau cov neeg ua haujlwm tsim kev ua haujlwm thiab txo qhov tau ua tiav thiab kho, yog li txhim kho kev txhim kho kev tsim kho equiciency.
3.3 Txhim kho qhov chaw zoo ntawm cov ntaub ntawv tsim tsev
Hauv phab ntsa thiab pem teb tsim, HPMC pab tsim kom muaj kev du, txawm tias kom tsis txhob muaj kev tsis txaus ntseeg los ntawm kev ziab qhuav lossis cov khoom siv sagging. HPMC yog qhov tsis tseem ceeb ntxiv rau cov khoom siv tsev siab uas yuav tsum tau tsim kho. Nws zaj duab xis-tsim cov khoom kom ntseeg tau tias cov khoom tuaj yeem tsim cov txheej tiv thaiv tuab tom qab kho kom zoo nkauj thiab ua haujlwm ntawm cov ntaub ntawv hauv tsev.
4. Lub Green Enviressional tiv thaiv tus nqi ntawm HPMC
Ntxiv nrog rau kev txhim kho lub tsev ua haujlwm, HPMC kuj muaj tus nqi ib puag ncig. Raws li cov khoom siv tau los ntawm cov xov tooj ntawm lub ntuj, HPMC yog ib puag ncig phooj ywg thiab hauv kab nrog niaj hnub no txoj kev txhim kho ntawm kev tsim kho kev tsim kho. Nws siv txo qhov xav tau kev xav tau rau tshuaj lom zem, yog li txo qis kev phom sij emissions. Tsis tas li ntawd, kev ua tau zoo ntawm HPMC kuj txo cov khoom siv pov tseg thiab cov nqi rov ua haujlwm ntxiv rau kev txuag hluav taws xob thiab emissioning txo hauv kev tsim kho.
Txoj kev thov thoob plaws HPMC hauv kev tsim kho ntawm kev tsim kho muaj kev txhim khu kev daws teeb meem rau kev txhim kho cov ntaub ntawv hauv tsev. Los ntawm kev txhim kho cov dej rov qab, txhim kho kev ua kom muaj zog, thiab ntxiv txhim kho cov khoom siv ua kom zoo thiab ruaj khov ntawm cov tsev. Ib qho ntxiv, raws li ntsuab thiab ib puag ncig ua phooj ywg ntxiv, HPMC muaj peev xwm tseem ceeb hauv kev txhim kho yav tom ntej ntawm kev tsim kho kev tsim kho. Nyob rau yav tom ntej, nrog kev hloov kho lub tsev ua haujlwm hauv tsev, daim ntawv thov tau txais kev txhim kho HPMC yuav txhawb kev ua haujlwm ntawm kev tsim kho.
Lub Sijhawm Post: Sep-12-2024