Mkati ndi kunja kwa khoma putty ufa, matailosi zomatira, matailosi kuloza wothandizira, youma ufa mawonekedwe agent, kunja matenthedwe matope matope kwa makoma akunja, matope odziyimira pawokha, matope okonza, matope okongoletsera, matope osalowa madzi kunja kwa matenthedwe owuma osakaniza matope.
Mumtondo, ndikuwongolera kuphulika, zotanuka kwambiri modulus ndi zofooka zina za matope a simenti, ndikupatsanso matope a simenti kukhala osinthika bwino komanso mphamvu zomangira zomangira, kuti athe kukana ndikuchedwetsa kubadwa kwa ming'alu ya simenti.Popeza polima ndi matope kupanga interpenetrating maukonde dongosolo, mosalekeza polima filimu aumbike mu pores, amene kumalimbitsa mgwirizano pakati pa aggregates ndi midadada ena pores mu matope, kotero matope kusinthidwa pambuyo kuumitsa ndi bwino kuposa simenti matope.Pali kusintha kwakukulu.
Udindo wa redispersible latex ufa mu putty makamaka muzinthu izi:
1. Sinthani zomatira ndi makina a putty.Redispersible latex powder ndi zomatira za ufa zopangidwa kuchokera ku emulsion yapadera (high molecular polima) pambuyo poyanika kutsitsi.Ufawu ukhoza kufalikiranso mu emulsion mutatha kukhudzana ndi madzi, ndipo uli ndi zinthu zomwezo monga emulsion yoyamba, ndiko kuti, ikhoza kupanga filimu pambuyo pa madzi.Kanemayu ali kusinthasintha mkulu, mkulu nyengo kukana ndi kukana zosiyanasiyana Mkulu adhesion kwa magawo.Kuphatikiza apo, ufa wa hydrophobic latex umapangitsa kuti matopewo asalowe madzi.
2. Kupititsa patsogolo mgwirizano wa putty, kukana kwambiri, kukana kwa alkali, kukana kuvala, ndikuwonjezera mphamvu yosinthasintha.
3. Sinthani kusalowa madzi ndi permeability wa putty.
4. Sinthani kasungidwe ka madzi a putty, onjezani nthawi yotseguka, ndikuwongolera magwiridwe antchito.
5. Sinthani kukana kwamphamvu kwa putty ndikuwonjezera kulimba kwa putty.
2. Udindo wa ufa wopangidwanso wa latex mu zomatira matailosi makamaka muzinthu izi:
1. Pamene kuchuluka kwa simenti kumawonjezeka, mphamvu yapachiyambi ya zomatira za matayala ikuwonjezeka.Panthawi imodzimodziyo, mphamvu zomatira zomangika pambuyo pa kumizidwa m'madzi ndi mphamvu zomatira zomata pambuyo pokalamba kutentha zimawonjezekanso.Kuchuluka kwa simenti kuyenera kupitirira 35%.
2. Ndi kuwonjezeka kwa kuchuluka kwa redispersible latex powder, mphamvu yomangirira yomangiriza pambuyo poviika m'madzi ndi mphamvu yomangirira pambuyo pa kukalamba kwa kutentha kwa zomatira za matailosi kumawonjezeka moyenerera, koma mphamvu yomangirira yomangika pambuyo pokalamba kutentha kumawonjezeka momveka bwino.
3. Ndi kuwonjezeka kwa kuchuluka kwa cellulose ether, mphamvu zomatira zomata za matailosi pambuyo pa kukalamba kwa kutentha kumawonjezeka, ndipo mphamvu zomatira zomata pambuyo pomira m'madzi zimayamba kuwonjezeka kenako zimachepa.Zotsatira zake zimakhala zabwino kwambiri pamene zinthu za cellulose ether zili pafupi ndi 0.3%.
Pogwiritsira ntchito redispersible latex powder, tiyenera kumvetsera kuchuluka kwa ntchito, kuti athe kugwira ntchito yake.
Nthawi yotumiza: Jun-05-2023