HydroxyPropyyl methylcellulose (HPMC) yog cov khoom siv siv tshuaj lom neeg dav siv hauv kev tsim kho kev tsim kho. Nws zwm rau cov cellulose muaj kev hais ua. Nws ua lub luag haujlwm tseem ceeb hauv cov ntaub ntawv tsim nrog nws cov khoom zoo tshaj, tshwj xeeb tshaj yog hauv cov tshuaj khib thiab ua kom qhuav. Hauv cov ntaub ntawv hauv tsev xws li hmoov, cov nplaum sib ntxiv, thiab kev sib ntxiv ntawm HPMC tuaj yeem txhim kho kev tsim kho kev ua haujlwm, lub cev siv nyiaj siv tau, thiab lub cev ntawm cov khoom lag luam.
1. Txhim kho kev tsim kho kev tsim kho
Ib qho ntawm cov haujlwm tseem ceeb ntawm HPMC yog los txhim kho kev ua haujlwm ntawm kev tsim cov khoom siv. Nyob rau hauv kev tsim kho, qhuav cug, ceramic pobzeb nplaum thiab lwm cov ntaub ntawv yuav tsum muaj cov kev ua haujlwm zoo thiab lubricity thaum tsim kho. HPMC muaj cov khoom siv hluav taws xob zoo heev, uas tuaj yeem khaws cov khoom siv sib xyaw kom zoo thaum lub sijhawm tsim kho, txuas lub sijhawm qhib, thiab zam kev kom qhuav. , tev thiab lwm yam tshwm sim. Qhov no pab cov neeg ua haujlwm ua cov haujlwm ua kom meej meej, txo qhov yuam kev, thiab txhim kho kev ua haujlwm tau zoo.
Cov dej khaws cia ntawm HPMC kuj tseem yog qhov tseem ceeb tshwj xeeb hauv kev ua hmoov. Raws li cov khoom tiaj ua ntej phab ntsa pleev xim, muab cov av noo kom muaj cov av noo rau lub sijhawm ntev los pab txhawb kev polishing thiab pleev xim cov txheej txheem. Qhov kev sib txuas ntawm HPMC tuaj yeem txuas lub sijhawm ziab ntawm lub sijhawm tso tawm cov txheej txheem putty, muab kev tsim kho kev tsim kho zoo dua.
2. Txhim kho cov dej khaws cia thiab cov nplaum
Nyob rau hauv cov ntaub ntawv cang, kev khiav dej yog qhov tseem ceeb tshaj plaws uas txiav txim siab lawv lub zog thiab lub zog. HPMC muaj cov dej ua haujlwm zoo heev, nws tuaj yeem nqus thiab khaws cov dej noo ntau, yog li ua kom muaj kev sib xyaw ua ntej kho. Qhov kev ua tau zoo no yog qhov tshwj xeeb tshaj yog rau kev tsim kho hauv huab cua kub thiab qhuav. HPMC tuaj yeem tiv thaiv cov teeb meem xws li kev tawg thiab muaj zog txo tau los ntawm cov ntaub ntawv kom qhuav sai sai.
Tsis tas li ntawd, HPMC txhim kho lub zog uas muaj zog los ntawm kev txhim kho cov viscosity ntawm lub tshuaj khib. Cov xeeb ceem no tshwj xeeb yog tshwm sim hauv cov nplais nplaum. Pobzeb Adhesives Ntxiv nrog HPMC ua tau zoo dua rau ntawm cov npoo av ntawm zawv zawg thiab poob tawm, yog li ua kom muaj kev ruaj ntseg thiab ruaj khov ntawm kev tsim kho.
3. Txhim kho kev tiv thaiv kev tawm tsam
Thaum lub sij hawm ceramic pobzeb cov txheej txheem, qhov teeb meem uas hle tus kab ceramic yog ib qho teeb meem uas muaj hauv kev tsim kho. Cov lus qhia ntawm HPMC tau txhim kho qhov kev ua tsis taus ntawm kev ua haujlwm ntawm ceramic cov nplaum nplaum. Los ntawm kev txhim kho lub viscosity ntawm cov khoom siv, nws tuaj yeem txo cov kab vuas ceramenon nkaus xwb, tshwj xeeb tshaj yog thaum tsim cov vuas luaj li ceramic
4. Txhim kho txheej txheem txheej txheem
Hauv cov cuab yeej txheej txheem kos duab, HPMC tsis yog muab cov dej ua kom zoo, tab tom ua kom muaj kev yooj yim dua rau kev siv thiab tusyees yooj yim rau lub sijhawm siv, txo cov sagging thiab txaws. Ib qho ntxiv, kev qhia ntawm HPMC hauv cov xim HPMC hauv cov xim HPMC tseem txhim kho cov theem theem ntawm cov xim thiab ua kom cov xim du thiab tiaj ntawm cov xim pleev xim.
5. Txhim Kho Huab Cua Kuj thiab Kev Ncu
HPMC tsis tsuas yog muab kev tsim kho zoo nyob rau hauv cug, putty thiab lwm yam ntaub ntawv, tab sis kuj pab tau huab cua tsis kam ua cov khoom. Nws tuaj yeem txhim kho cov khoom khov-thaws tsis kam thiab kev laus tsis kam los ntawm kev khaws cov dej noo hauv cov khoom siv txuas ntxiv tom qab kho tau. Qhov no yog qhov tshwj xeeb tshaj yog rau cov ntaub ntawv tsim kho sab nraum zoov, uas tuaj yeem txhim kho lub tsev kom ruaj khov ntawm lub tsev.
6. Txo cov kab nrib pleb thiab shrinkage
Daim ntawv thov ntawm HPMC hauv cov ntaub ntawv tsim kho kuj tseem siv tau zoo txo thiab cov teeb meem tawg thaum ziab. Hauv cov ntawv tso cai, cov dej yaj ua kom sai thiab yooj yim ua rau nws tawg. Cov khoom siv dej-khaws cov khoom HPMC tuaj yeem ua rau muaj kev faib tawm cov kev sib tsoo no, kom muaj kev sib tw ntub dej thaum ua kom qhuav, yog li txo qhov tshwm sim ntawm cov kab nrib pleb. Cov.
7. Kev tiv thaiv ib puag ncig thiab cov txiaj ntsig nyiaj txiag
HPMC yog lub ntuj cellulose derivative. Nws cov txheej txheem npaj yog ib puag ncig tus phooj ywg thiab tsis muaj cov tshuaj muaj teeb meem. Nws ua tau raws li qhov yuav tsum tau ua ntawm kev tsim kho niaj hnub rau cov ntaub ntawv ntsuab. Nyob rau tib lub sijhawm, daim ntawv thov ntawm HPMC hauv cov ntaub ntawv hauv tsev tuaj yeem txo thaum tsim kho, yog li kev txhim kho cov nqi siv khoom siv thiab txo cov nqi siv khoom siv. Thaum txhim kho cov khoom siv ua tau zoo, kev kho dua tshiab thiab kev kho cov nqi kho tau txo, ua kom muaj kev tsim kho tag nrho ntau dua.
8. Kev ntsuas ntawm cov ntawv thov
HPMC tau siv dav hauv kev tsim kho kev tsim kho. Nws tsis tsuas yog ua lub luag haujlwm tseem ceeb hauv cov tsev ua noj ua ke, cov khoom xyaw ua ke, tab sis tseem dav siv nyob rau hauv tus kheej kev lag luam, thermal rwb thaiv tsev mortars, gypsum-based cov ntaub ntawv thiab lwm daim teb. Seb nws yog qhov kev tsim kho tshiab lossis kev kho tshiab ntawm lub tsev qub, HPMC ua si hauv kev txhim kho cov txiaj ntsig thiab txhim kho cov khoom siv.
Raws li kev ua haujlwm ntxiv, HPMC tau ua rau cov kev koom tes tseem ceeb los txhim kho cov khoom ua haujlwm hauv kev ua haujlwm zoo, thickening, adhesion thiab lwm yam khoom. Nws tsis yog txhim kho kev tsim kho cov ntaub ntawv tsim kho hauv tsev, tab sis kuj txhim kho qhov zoo thiab ruaj khov ntawm cov dej num ua haujlwm. Nrog kev txhim kho kev tsim kho tas mus li ntawm kev tsim kho cov thev naus laus zis thiab kev txhawb nqa ntawm Green Painture Confonsts Cov Ntsiab Lus, HPMC yuav ua lub luag haujlwm tseem ceeb hauv kev tsim kho yav tom ntej.
Lub Sijhawm Post: Feb-17-2025