Redispersible latex ufa
Mkati ndi kunja kwa khoma putty ufa, matailosi zomatira, matailosi kuloza wothandizila, youma ufa mawonekedwe agent, kunja matenthedwe matope matope kwa makoma akunja, matope okha-leveling, matope kukonza, matope kukongoletsa, matope matope kunja matenthedwe kusungunula youma wosakanizidwa 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.
Choyamba: Udindo wa ufa wa latex wopangidwanso mu putty makamaka ndi 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, filimu ikhoza kupangidwa madzi atatha.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, ndi kuonjezera 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.
Awiri: Udindo wa ufa wa latex wopangidwanso mumatope makamaka ndi izi
1. Limbikitsani mphamvu yopondereza ndi mphamvu yosunthika yamatope.
2. Kuphatikizika kwa ufa wa latex kumawonjezera kuchuluka kwa matope, potero kumapangitsa kuti matopewo akhale olimba, komanso amapatsa matopewo kukhala ndi zotsatira zabwino zobalalika.
3. Kupititsa patsogolo mgwirizano wamatope.Njira yolumikizirana imatengera kutengera ndi kufalikira kwa ma macromolecules pamtunda womata.Panthawi imodzimodziyo, ufa wa mphira uli ndi mphamvu zinazake ndipo umalowa bwino pamwamba pa zinthu zoyambira ndi cellulose ether, kotero kuti zinthu zapansi pamunsi ndi pulasitala yatsopano zili pafupi, potero kuwongolera Adsorption kumawonjezera ntchito yake.
4. Chepetsani zotanuka modulus matope, kusintha mapindikidwe luso ndi kuchepetsa ang'onoang'ono chodabwitsa.
5. Kupititsa patsogolo kukana kwamatope.Kusintha kwa kukana kuvala kumakhala makamaka chifukwa cha kukhalapo kwa guluu wambiri pamwamba pa matope.Guluu ufa umakhala ngati chomangira, ndipo mawonekedwe a omentum opangidwa ndi guluu ufa amatha kudutsa mabowo ndi ming'alu ya matope a simenti.Imapititsa patsogolo mgwirizano pakati pa zinthu zoyambira ndi zinthu za simenti za hydration, potero zimawonjezera kukana.
6. Perekani matope kukana bwino kwa alkali.
Chachitatu: Udindo wa ufa wopangidwanso wa latex mu zomatira za matailosi makamaka ndi izi
1. Pamene kuchuluka kwa simenti kumawonjezeka, mphamvu yapachiyambi ya zomatira za matailosi ikuwonjezeka, ndipo panthawi imodzimodziyo, mphamvu zomatira zowonongeka pambuyo pa kumizidwa m'madzi ndi mphamvu zowonongeka pambuyo pa ukalamba wotentha zimakulanso.Kuchuluka kwa simenti kuyenera kupitirira 35%.
2. Ndi kuwonjezereka kwa kuchuluka kwa ufa wa latex wopangidwanso, mphamvu yowonongeka ya matailosi pambuyo pa kumizidwa m'madzi ndi mphamvu yowonongeka pambuyo pa kukalamba kwa kutentha kumawonjezeka moyenerera, koma kuwonjezereka kwa mphamvu zomangira zomangira pambuyo pokalamba kutentha kumakhala kochepa.zoonekeratu.
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%.
Choncho, pogwiritsa ntchito redispersible latex ufa, tiyenera kulabadira kuchuluka ntchito, kuti tithe kwenikweni kuchita mbali yake.
Nthawi yotumiza: Mar-28-2023