Kev siv HPMC (HydroxyPropyyl methylulose) raws li kev ntxiv rau kev txhim kho cov ntaub ntawv-cov khoom siv dav, siv tau thiab nqi ua haujlwm ntawm cov ntaub ntawv hauv tsev. Raws li cov polymer sib xyaw, HPMC tuaj yeem txhim kho lub cev thiab tshuaj ntawm cov ntaub ntawv hauv tsev.
(1) txhim kho kev tsim kho cov khoom siv ntawm cov khoom noj qabent-raws li cov ntaub ntawv
1. Txhim Kho Cov Dej Ua Haujlwm
Ib qho ntawm cov tseem ceeb tshaj plaws HPMC hauv kev tsim kho yog nws cov dej ua kom zoo. HPMC tuaj yeem khaws cov dej noo thiab ua tiv thaiv noo noo hauv cov khoom siv Maas-basic sai sai, uas yog qhov tseem ceeb tshaj plaws hauv ib puag ncig cua txias. Dej zoo yuav pab cov xis mas rau cov dej siab kom huv si, txo cov shrinkage tawg thiab txhim kho lub zog thiab lub tsev ua kom ruaj khov ntawm lub tsev.
2. Nce lub sijhawm ua haujlwm
HPMC tseem tuaj yeem txuas ntxiv lub sijhawm ntawm cov khoom siv xis mas raws li cov khoom siv, muab sijhawm ntev. Rau cov neeg ua haujlwm, txuas ntxiv lub sijhawm ua haujlwm txhais tau tias lawv tuaj yeem kho tau, luas thiab cov txheej txheem ua kom zoo dua, txo cov kev tsim kho thiab txhim kho kev tsim kho kev tsim kho. Cov yam ntxwv no yog qhov tshwj xeeb tshaj yog thaum ua haujlwm ntawm cov chaw loj lossis nrog cov txheej txheem nyuaj.
3. Txhim kho kev ua haujlwm thiab viscosity
HPMC tuaj yeem txhim kho cov dej ntws thiab ua kom cov khoom siv hauv tsev, kom ntseeg tau tias cov ntaub ntawv tuaj yeem yog cov khoom siv zoo dua thiab cov tub qhe zoo dua. Vim nws tshwj xeeb cov nyhuv tuab, HPMC ua qoob cug thiab plastering cov ntaub ntawv yooj yim kom yooj yim kom yooj yim kom yooj yim rau kev tsim kho, ua rau lawv tsis tshua pom kev thiab lub caij nplooj zeeg, ua kom muaj kev sib luag.
(2) Txhim kho txoj kev sib raug zoo thiab cov ntaub ntawv durability ntawm cov ntaub ntawv
1. Txhim kho lub zog bonding
Hauv cov ntawv thov xws li pobzeb cov nplaum thiab gypsum cov laug cam uas xav tau kev sib raug zoo, kev sib ntxiv ntawm HPMC tuaj yeem txhim kho txoj kev sib raug zoo. Nws tuaj yeem txhim kho cov nplaum ntawm cov xis nyob ntawm cov khoom siv hauv paus, yog li kev thaiv cov khoom los ntawm kev poob thiab tawg, thiab ruaj khov ntawm cov qauv.
2. Tiv thaiv cov kab nrib pleb thiab kev sib kho
Cov dej ua haujlwm khaws cia thiab cov nyhuv tuab muab los ntawm HPMC tuaj yeem txo cov dej huv thiab pob zeb ua kom zoo nkauj thiab ua kom muaj teeb meem. Qhov no yog lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev zoo nkauj thiab kev nyab xeeb ntawm lub tsev. Tshwj xeeb tshaj yog nyob rau sab nraud phab ntsa kev siv, tiv thaiv kev tawg tuaj yeem ua tau zoo tshaj qhov kev pabcuam lub tsev.
(3) txhim kho cov cua sov rwb thaiv tsev thiab cov hlav tawm
1. Txhim kho cov thermal rwb thaiv tsev ua haujlwm
Nyob rau hauv cov ntsiab lus ntawm kev nce kev txuag hluav taws xob hauv cov tuam tsev, HPMC tuaj yeem txhim kho lub thermal rwb thaiv tsev kev ua haujlwm ntawm cov khoom siv hauv tsev los ntawm kev sib cav sib ceg. HPMC nce qhov porosity ntawm cov khoom siv, txo qhov thermal conductivity ntawm cov khoom, yog li muaj txiaj ntsig zoo thaiv cov cua sov. Qhov no pab kom muaj qhov kub nyob sab hauv lub tsev, txo qhov sib txawv ntawm cov tsev nyob sab hauv tsev thiab sab nraud, thiab ua tiav lub zog zoo dua.
2. Txhim kho khov-thaw tsis kam
HPMC kuj tseem tuaj yeem txhim kho lub khov-thaws cov ntaub ntawv tsim tsev thiab tiv thaiv cov ntaub ntawv los ntawm kev puas tsuaj los ntawm kev ua kom khov rau hauv ib puag ncig tsawg. Thaum kev tsim kho cov cheeb tsam txias lossis lub caij ntuj no, daim ntawv thov HPMC tuaj yeem txhim kho lub freeze-thaws cov ntaub ntawv thiab txuas ntxiv kev pabcuam lub neej ntawm lub tsev.
(4) Txhim kho cov ecological thiab ib puag ncig kev tiv thaiv ntawm cov ntaub ntawv tsim tsev
1. Txo cov khoom siv pov tseg
Cov dej khaws cia thiab thickening cov khoom ntawm HPMC tuaj yeem txo cov khoom tsis raug thaum lub sijhawm kev tsim kho. Cov dej khaws cia ua kom qhuav cov khoom siv kom qhuav ntawm cov khoom siv casent-raws li cov khoom siv thiab zam cov khib nyiab vim dej poob thaum lub sijhawm kho kom tiav. Cov kev ua tau zoo ua kom tau zoo tiv thaiv cov ntaub ntawv los ntawm kev poob vim lub ntiajteb txawj nqus ntawm txoj kev ntsug thiab ua rau cov khib nyiab.
2. Txo kev siv hluav taws xob thiab cov pa pa roj carbon emissions
Kev siv HPMC txhim kho cov khoom siv kho kom zoo, yog li txo cov khoom siv thiab kev siv zog uas yuav tsum tau siv rau kev kho thiab kho dua tshiab. Thaum lub sij hawm tsim qauv, kev sib ntxiv ntawm HPMC kuj tseem tuaj yeem txo cov kev xav tau rau kev ua haujlwm vim qhuav, thiab lwm yam. Ib qho ntxiv, los ntawm kev txhim kho cov khoom siv thermal rwb thaiv tsev hluav taws xob, HPMC pab cov tuam tsev yuav txo cov cua txias thiab cua sov, ntxiv dua cov kab mob ntawm cov pa roj carbon.
(5) dav ntau ntawm cov ntawv thov thiab cov txiaj ntsig kev khwv nyiaj txiag
1. Siv ntau yam hauv ntau lub tsev
HPMC tuaj yeem siv ntau yam khoom siv hauv tsev, suav nrog tab sis tsis txwv rau cov khoom lag luam, muab cov khoom nplaum, gypsum, rwb thaiv tsev cov ntaub ntawv thiab kev txhawb nqa cov khoom thiab cov khoom siv. Hauv cov ntawv thov no, HPMC ua si lub luag haujlwm tsis tseem ceeb los ntawm kev txhim kho cov khoom siv tau, thiab txhim kho kev tsim kho cov tsev.
2. Txo cov nqi tsim kho lub tsev
Txawm hais tias HPMC nws tus kheej tsis pheej yig, nws tseem txhim kho kev ua haujlwm tau zoo, txo cov khoom noj, kho dua tshiab thiab cov khoom pov tseg, thiab txo cov nqi tsim kev tsim kho tag nrho. Tshwj xeeb tshaj yog nyob rau hauv cov tsev niaj hnub, raws li tib neeg cov cai rau kev tiv thaiv zoo thiab kev tiv thaiv ib puag ncig ua tau zoo ntxiv, kev siv HPMC tuaj yeem ua tiav cov txiaj ntsig kev khwv tau ntev. Los ntawm kev txo cov xuaj moos thiab cov khoom pov tseg, HPMC ua rau cov txheej txheem tsim kho lub tsev ntau dua, yog li txo cov nqi zog thiab cov nqi khoom siv.
(6) txhim kho kev nplij siab thiab kev ua kom zoo nkauj ntawm lub tsev
1. Txhim kho lub tsev nyob zoo
Cov nyhuv tuab ntawm HPMC tso cai rau cov ntaub ntawv xws li pleev xim thiab mob sagging thiab sagging, yog li ua kom muaj kev ua kom zoo nkauj thiab ua kom lub tsev nyob saum npoo av. Cov nyhuv no yog qhov tseem ceeb rau sab nrauv phab ntsa plastering, sab hauv cov txheej ci zoo nkauj, flooring thiab lwm yam kev ua haujlwm txuas.
2. Txhim kho sab hauv ib puag ncig ntawm lub tsev
Cov dej khaws cia thiab hygroscopicity muab los ntawm HPMC tseem ua tau zoo hloov kho cov huab cua sov ntawm huab cua sab hauv thiab txhim kho kev nplij siab ntawm cov kev nplij siab ntawm lub neej nyob. Ib qho ntxiv, HPMC tuaj yeem siv tau ua ke nrog lwm cov neeg ua phooj ywg ib puag ncig los tsim cov khoom ntsuab sab hauv tsev thiab txhim kho lub tsev zoo.
Raws li kev ntxiv rau kev tsim kho cov khoom siv-qib cov khoom siv, HPMC muaj kev txhim kho tseem ceeb hauv dej khaws cia, thickening, adhesion thiab kev tsim kho. Nws daim ntawv thov hauv cov khoom siv CAy-raws tsis tuaj yeem txhim kho kev tsim kho lub neej thiab cov khoom siv ib puag ncig, tab sis kuj tseem yuav siv lub zog tsim kho thiab txhim kho kev nplij siab thiab kev ua kom zoo nkauj ntawm cov tsev. Los ntawm ntau cov kev siv, HPMC ua si yog lub luag haujlwm Irreplaces tau txoj haujlwm hauv kev tsim kho niaj hnub, kev tsim kho kom zoo thiab ua haujlwm rau qib tshiab.
Lub Sijhawm Post: Feb-17-2025