Ufa wa emulsion ndi latex wosungunukanso umatha kupanga mphamvu yokoka komanso mphamvu yolumikizirana pazinthu zosiyanasiyana pambuyo popanga filimu, zimagwiritsidwa ntchito ngati chomangira chachiwiri mu matope kuti chiphatikizidwe ndi simenti yomangira yopanda organic, simenti ndi polima motsatana. Perekani mphamvu zonse zomwe zikugwirizana kuti matopewo agwire bwino ntchito.
Poona kapangidwe kake ka zinthu zopangidwa ndi polymer-simenti, amakhulupirira kuti kuwonjezera ufa wa latex wosungunukanso kungapangitse kuti polymer ipange filimu ndikukhala gawo la khoma la dzenje, ndikupanga matope onse kudzera mu mphamvu yamkati, zomwe zimapangitsa kuti mphamvu yamkati ya matope ikhale yabwino. Mphamvu ya polymer, motero imapangitsa kuti matope alephere kugwira ntchito bwino ndikuwonjezera mphamvu yomaliza.
Kapangidwe ka polima mu matope kasintha kwa nthawi yayitali, ndipo kamasunga mgwirizano wokhazikika, mphamvu yopindika komanso yopondereza, komanso kusalowerera bwino kwa madzi. Njira yopangira ufa wa latex wosungunukanso pa mphamvu ya zomatira za matailosi inapeza kuti polima ikauma kukhala filimu, filimu ya polima imapanga kulumikizana kosinthasintha pakati pa matope ndi matailosi mbali imodzi, ndipo mbali inayo, polima mu matope atsopano Onjezani mpweya mu matope ndikukhudza mapangidwe ndi kunyowa kwa pamwamba, kenako panthawi yokhazikitsa, polima imakhudzanso bwino njira yothira madzi ndi kuchepa kwa simenti mu binder, zomwe zingathandize pakukonza. Mphamvu ya bond imathandiza bwino.
Kuonjezera ufa wa latex wosungunukanso ku matope kungathandize kwambiri kulimbitsa mgwirizano ndi zinthu zina, chifukwa ufa wa latex wophimbidwa ndi madzi ndi gawo lamadzimadzi la simenti yoyimitsidwa zimalowa m'mabowo ndi m'mitsempha yamagazi ya matrix, ndipo ufa wa latex umalowa m'mabowo ndi m'mitsempha yamagazi. Filimu yamkati imapangidwa ndikumatiridwa mwamphamvu pamwamba pa substrate, motero kuonetsetsa kuti pali mgwirizano wabwino pakati pa zinthu zomangira simenti ndi substrate.
Kukonza bwino ufa wa latex pakugwira ntchito kwa matope kumachitika chifukwa chakuti ufa wa latex ndi polima yokhala ndi mamolekyu ambiri okhala ndi magulu a polar. Ufa wa latex ukasakanizidwa ndi tinthu ta EPS, gawo losakhala la polar mu unyolo waukulu wa polima ya latex ufa lidzayamba kusakanikirana ndi pamwamba pa EPS. Magulu a polar mu polima amalunjika kunja pamwamba pa tinthu ta EPS, kotero kuti tinthu ta EPS timasintha kuchoka pa hydrophobicity kupita ku hydrophilicity. Chifukwa cha kusintha kwa pamwamba pa tinthu ta EPS ndi ufa wa latex, kumathetsa vuto lakuti tinthu ta EPS timakumana mosavuta ndi madzi. Kuyandama, vuto la kuyika kwakukulu kwa matope. Panthawiyi, simenti ikawonjezedwa ndikusakanikirana, magulu a polar omwe amamatiridwa pamwamba pa tinthu ta EPS amalumikizana ndi tinthu ta simenti ndikuphatikizana bwino, kotero kuti kugwira ntchito kwa matope oteteza a EPS kumawonjezeka kwambiri. Izi zikuwonekera chifukwa chakuti tinthu ta EPS timanyowa mosavuta ndi simenti, ndipo mphamvu yolumikizana pakati pa awiriwa imakula kwambiri.
Nthawi yotumizira: Mar-18-2023