Kodi ntchito ya ufa wa polima wopangidwanso ndi chiyani?

Kanema wazobalalikansopolimaufaRDPndi zotanuka komanso zolimba, mu chigoba cholimba chomwe chimapangidwa ndi hydration ya matope a simenti. Pakati pa tinthu tating'ono ta matope a simenti, imagwira ntchito ngati cholumikizira chosunthika, chomwe chimatha kunyamula katundu wopindika kwambiri, kuchepetsa nkhawa, ndikuwongolera kulimba komanso kupindika.

Redispersible polima ufa amawonjezera kukana kwa ma resins a thermoplastic. Ndi filimu yofewa yomwe imakutidwa pamwamba pa matope amatope, ndipo ufa wopangidwa ndi latex ukhoza kuyamwa mphamvu zakunja, kumasuka popanda kuwonongeka, potero kumapangitsa kuti matope asamawonongeke. Redispersible latex ufa umawonjezera hydrophobicity, umachepetsa kuyamwa kwamadzi, ndipo ukhoza kupititsa patsogolo microstructure ya matope a simenti.

Polima yake imapanga maukonde osasinthika panthawi ya simenti ya hydration, ndikuwonjezera ufa wa latex. The capillary mu gel osakaniza simenti amatsekedwa kuti atseke mayamwidwe amadzi, kuteteza kulowa kwa madzi, ndi kupititsa patsogolo kusamalidwa. Redispersible polima ufa umathandizira kulimba kwa abrasion.

Redispersible latex ufa umagwiritsidwa ntchito makamaka mumtondo wowuma wa simenti m'makampani omanga, ndipo ndi chowonjezera chofunikira pamatope owuma a simenti. Udindo wa dothi louma la simenti ndilofunika kwambiri, lomwe lingathe kupititsa patsogolo mphamvu zomangira ndi kugwirizanitsa zinthu, kupititsa patsogolo mphamvu yopindika ndi kusinthasintha kwa zinthuzo, kupititsa patsogolo kukana kwachitsulo ndi kusungunuka kwa zinthuzo, komanso kusintha kukana kwa nyengo, kulimba. ndi kuvala kukana kwa zinthu. Sinthani hydrophobicity ya zinthu, kuchepetsa kuchuluka kwa mayamwidwe amadzi, kusintha magwiridwe antchito, kuchepetsa kuchepa kwa zinthuzo, ndikupewa kusweka. , kupititsa patsogolo kupindika ndi kukana kwamphamvu.