Txhawb Kev Tiv Thaiv Kab Ntsig Hauv Cov Plasters: Lub Luag Haujlwm Tseem Ceeb ntawm HEC hauv Gypsum thiab Cement Mixes
Cov plasters—ob qho tib si gypsum thiab cement-based—yeej yuav tawg thaum lub sij hawm qhuav vim yog cov dej noo poob sai thiab kev ntxhov siab tsis sib npaug ntawm cov substrate. Kev ntsws, kev hloov pauv ntawm thermal, thiab kev tsis sib xws uas tib neeg ua (xws li kev siv tsis sib xws) ua rau tawg ntau dua. Kev daws cov teeb meem no thaum ntxov yog qhov tseem ceeb rau kev ua tiav ruaj khov thiab zoo nkauj.
1. Kev Khaws Dej Zoo Dua
HEC tsim ib lub network uas tuav dej, ua rau qeeb qeeb ntawm kev ua pa thiab ua rau muaj dej ntau. Qhov no txo qhov kev ntsws thaum ntxov thiab kev tawg me me, tshwj xeeb tshaj yog thaum kub lossis qhuav.
2. Kev Tswj Xyuas Viscosity rau Kev Siv Uniform
Los ntawm kev ntxiv cov viscosity meej, HEC ua kom cov plaster sib tov sib npaug, zam kev sib cais thiab sagging thaum lub sijhawm thov - cov yam tseem ceeb hauv kev tsim tawg. .
3. Kev Ruaj Ntseg thiab Kev Ywj Pheej Zoo Dua
HEC muab ib lub network polymeric uas nqus tau kev ntxhov siab thiab txo cov plasters kho uas tawv thiab tawg yooj yim. Nws ua rau muaj kev tawv, uas ua rau cov substrate txav me ntsis yam tsis ua rau tawg.
4. Kev nplaum zoo dua thiab cov khoom ua yeeb yaj kiab
Qhov tsis sib txuas ntawm cov interfaces ua rau tawg. HEC txhawb kev sib txuas ntawm plaster thiab substrate (lossis ntawm cov txheej), thiab tsim cov txheej zaj duab xis yooj ywm kom txo qhov delamination .
5. Cov qauv pore zoo
HEC txhawb nqa qhov faib tawm ntawm cov qhov me me, txhim kho qhov ceev thiab txo qhov shrinkage deformation - pab txhawb rau kev ruaj khov mus sij hawm ntev thiab tiv taus dej noo. .
Cov Kev Siv Tau Zoo thiab Cov Piv Txwv Txog Cov Ntaub Ntawv
1. Cov Plasters Gypsum
Hauv cov txheej txheem gypsum, HEC ua rau cov dej khaws cia zoo dua thiab tsim cov zaj duab xis tiv thaiv thaum lub sijhawm teeb tsa - txo cov kab nrib pleb thiab txhim kho lub zog ntawm qhov chaw thiab kev nplaum.
2. Cov Plasters Uas Siv Cement
Ntxiv HEC rau hauv cov cement plaster ua rau kom muaj viscosity, pumpability, thiab kev siv tau zoo ib yam. Nws pab tswj cov dej noo thiab tiv thaiv kev tawg lossis kev ntswj ntsug.
3. Cov Plasters Sib dua & EIFS
Cov plasters uas kho nrog HEC ua rau pom kev du, nplaum, thiab ruaj khov dua - zoo tagnrho rau cov phab ntsa niaj hnub thiab cov khoom siv rwb thaiv tsev sab nraud
Xaus lus
Hydroxyethyl cellulose yog ib qho khoom siv uas muaj txiaj ntsig zoo, pheej yig uas ua rau muaj zog tiv thaiv kev tawg hauv cov plaster systems. Los ntawm kev ua kom zoo dua qhov khaws cia dej, viscosity, adhesion, thiab kev ywj pheej ntawm cov qauv, HEC muab cov khoom tiav du, cov khoom sib txuas muaj zog dua, thiab cov txiaj ntsig ruaj khov - pab cov kws tshaj lij hauv kev tsim kho thiab cov neeg siv khoom.