Lub luag haujlwm ntawm hydroxypropyl methyl cellulose hauv kev tiv thaiv kev tawg ntawm cov cement-based mortars
Hydroxypropyl Methylcellulose (HPMC) yog ib qho khoom siv ntxiv rau hauv cov cement-based mortars. Cov mortars siv rau hauv ntau yam kev siv hauv kev tsim kho xws li phab ntsa tsev, pem teb, thiab lwm yam khoom siv. Qhov zoo ntawm cov mortar ua lub luag haujlwm tseem ceeb hauv kev ruaj khov thiab kev tiv thaiv ntawm cov qauv no rau huab cua thiab lwm yam sab nraud. HPMC tau pom tias ua rau muaj kev tiv thaiv kev tawg ntawm cov cement-based mortars. Daim ntawv no yuav tshawb xyuas lub luag haujlwm ntawm HPMC hauv kev tiv thaiv kev tawg ntawm cov cement-based mortars.
Kev tiv thaiv kev tawg yog dab tsi?
Kev tiv thaiv kev tawg yog lub peev xwm ntawm cov mortar kom tuav nws cov qauv thiab kev ncaj ncees thaum raug dej. Txawm hais tias nws yog qhov tseem ceeb rau cov mortar kom permeable rau hauv dej kom nws ua pa tau, nws tseem ceeb heev uas cov mortar tsis txhob qaug zog lossis pib yaj thaum kov dej. Kev tiv thaiv kev tawg ntawm cov cement-based mortars yog ib qho tseem ceeb kom ua tiav lub sijhawm ntev hauv cov qauv.
Lub luag haujlwm ntawm HPMC hauv kev tiv thaiv kev tawg
HPMC siv dav ua ib yam khoom ntxiv rau hauv cov cement-based mortars kom txhim kho lawv cov khoom tiv thaiv dispersive..HPMC ua haujlwm ua ib qho binder los ntawm kev tsim ib daim nyias nyias ntawm cov cement me me, uas muab ib qho thaiv tiv thaiv dej..Zaj yeeb yaj kiab no ua kom cov khoom sib koom ua ke ntawm cov mortar, ua rau nws tiv taus kev ntxhov siab thaum raug dej. Tsis tas li ntawd, HPMC txhim kho kev ua haujlwm ntawm cov mortar los ntawm kev txo cov dej hauv cov khoom, ua rau muaj cov qauv denser thiab compact dua..Qhov no ua rau cov mortar sib koom ua ke ntau dua uas muab kev tiv thaiv dispersive zoo dua..HPMC kuj ua haujlwm ua tus neeg sawv cev khaws dej los ntawm kev txo qhov poob dej ntawm cov khoom sib xyaw thaum lub sijhawm thov, ua rau cov mortar kho zoo dua. Ntxiv mus, HPMC txhim kho lub zog ntawm cov mortar los ntawm kev txhim kho nws cov khoom sib txuas..Zaj yeeb yaj kiab tsim los ntawm HPMC ntawm cov cement me me kuj txhim kho qhov sib txuas ntawm cov mortar thiab lub substrate, ua rau muaj kev sib txuas zoo dua.
Xaus lus:
Xaus lus, Hydroxypropyl Methylcellulose (HPMC) yog ib qho tseem ceeb heev rau kev txhim kho qhov tsis kam ntawm cov cement-based mortars. HPMC ua haujlwm ua tus binder, tus neeg sawv cev khaws dej, thiab txhim kho lub zog ntawm cov mortar thaum txhim kho nws txoj haujlwm..Lub zaj duab xis thaiv uas tsim los ntawm HPMC ntawm cov cement ua rau lub mortar sib koom ua ke, ua rau nws tiv taus kev ntxhov siab thaum raug dej..Kev siv HPMC hauv cov cement-based mortars yog ib txoj hauv kev pheej yig thiab ua tau zoo los txhim kho kev ruaj khov ntawm cov qauv thiab kev tiv thaiv huab cua.