Mu matope, redispersible polima ufa akhoza kusintha zomangamanga makhalidwe a mphira ufa, kusintha fluidity wa ufa mphira, kusintha thixotropy ndi sag kukana, kusintha cohesive mphamvu ya mphira ufa, kusintha madzi solubility, ndi kuonjezera nthawi pamene anatsegula kwa dziko lakunja. pakati. Simenti ikaumitsidwa ndikukhazikika, imatha kukulitsa mphamvu yopondereza, kukulitsa mphamvu yamphamvu, kuchepetsa nkhungu zotanuka, ndikuwongolera mawonekedwe ake. redispersible polima ufa uli ndi zomatira zabwino zopanga filimu, ndipo kugwiritsa ntchito kwake kumatha kuwoneka muzomanga ndi zokongoletsera.
Filimu ya utomoni ya ufa wa latex ili ndi mawonekedwe odzikoka okha, omwe amatha kumasula mphamvu yothandizira kuti igwirizane ndi nangula wamatope a simenti. Malingana ndi mphamvu zamkati izi, matope a simenti amasungidwa mwachizoloŵezi ndipo mgwirizano wa gulu la matope a simenti umakhala bwino. Kukhalapo kwa polima zotanuka kwambiri kumapangitsa kuti ductility ndi ductility wa matope a simenti apangidwe bwino. Mfundo yowonjezera kupsinjika kwa zokolola ndi mphamvu zopanda mphamvu zowonongeka ndi izi: Pamene mphamvu imatulutsidwa, ma micro-cracks adzachedwetsa nthawi mpaka kupanikizika kwa in-situ kumakula chifukwa cha kuwonjezeka kwa ductility ndi ductility. Kuphatikiza pa izi, madera a polima omwe ali ndi interlaced amakhalanso ndi zotsatira zolepheretsa ming'alu yaying'ono yophatikizidwa ndi ming'alu. Choncho, ufa wa latex wobalalika ukhoza kuonjezera kupanikizika kosagwira ntchito komanso kusokonezeka kwa zinthu zopangira. Filimu ya polima mumatope a simenti yosinthidwa ndi polima ndi chowopsa chachikulu pamatope olimba a simenti. Kubalalitsidwa kwa ufa wa polima wosabalalika kumachitanso gawo lina lotsogola patsambalo, lomwe ndikuwongolera kumamatira kwa zida zomwe zimalumikizana.
Unyinji wa ufa wa polima wotayika womwe anthu amawona nthawi zambiri pomanga ndi wotuwa, ngakhale mithunzi ina ingawonekere. Mapangidwe a redispersible latex ufa makamaka amapangidwa ndi polymer epoxy resin preservative (mkati ndi kunja) kukonza njira ya colloid ndi wothandizira kukana. Pakati pawo, utomoni wapamwamba wa polima epoxy uli pamalo ofunikira a tinthu tating'ono ta mphira ndipo ndi gawo lofunikira la ufa wa polima wotayika.
The dispersible polima ufa safuna madzi apampopi posungira ndi mayendedwe, zomwe zingapulumutse mtengo wamayendedwe a ma module omanga zomangamanga ndikupanga mayendedwe kukhala osavuta komanso othamanga. Ufa wachilengedwe wopangidwanso ndi latex wopangidwa ndi fakitale ya simenti imakhala ndi alumali yayitali ndipo imatha kusungidwa kwa nthawi yayitali osadandaula za kuzizira kocheperako komanso kusungirako kosavuta. Thumba lililonse la ufa wa polima wotayika ndi wocheperako, wopepuka kulemera, komanso wosavuta kugwiritsa ntchito.
Nthawi yotumiza: Oct-24-2022