Redispersible latex ufa ndi ufa wopezedwa ndi kupopera-kuyanika ndi polima emulsion ndiyeno kuwonjezera kusinthidwa zinthu, amene akhoza obalalitsidwa kupanga emulsion akakumana ndi madzi. Redispersible latex powder amagwiritsidwa ntchito makamaka ngati chowonjezera cha matope owuma, omwe ali ndi ntchito zopititsa patsogolo ntchito yamatope, kupititsa patsogolo madzi, kupititsa patsogolo mgwirizano, ndi kuwonjezera mphamvu zomangira. Ndi mtundu watsopano wa zinthu zachilengedwe wochezeka. Pakalipano, ufa wa latex uyenera kuwonjezeredwa ku mgwirizano wa matailosi, kutsekereza khoma lakunja, kudziwongolera, ufa wa putty, ndi zina zotero.
The polima emulsion ntchito redispersible latex ufa makamaka polima emulsion opangidwa ndi kuwonjezera monomers chimodzi kapena awiri kuti vinilu acetate monga monoma ku China. Pakalipano, vinyl acetate-ethylene copolymer emulsion, vinyl acetate - Makamaka ethylene tertiary carbonate copolymer emulsion, zowonjezera zidzawonjezedwa ku latex ufa wopangidwa kuti ukhale wotsutsa-caking ndi redispersibility. Komabe, chifukwa cha kapangidwe ka vinyl acetate, mphamvu yake yoyambirira ndi mphamvu yochiritsa madzi si yabwino pankhani yomatira ku matabwa otchinjiriza ndi magawo a simenti.
Acrylic emulsion ali bwino madzi kukana ndipo chimagwiritsidwa ntchito mu makampani zomangamanga, koma kuyanika kwake mwachindunji ndi kupopera ufa ndondomeko ndi mwana, ndi gawo lake mu redispersible emulsion ufa ndi laling'ono kwambiri, ndi adhesion wa akiliriki emulsion osauka, ndipo ndi zomata kumatope. Kuwongolera kosakwanira kwa mphamvu zomangira kumalepheretsa kugwiritsa ntchito ma emulsions a acrylic.
Cholinga cha buku la acrylic latex powder ndi njira yokonzekera ndikupeza mankhwala a latex powder okhala ndi mphamvu zogwirizanitsa komanso zomatira bwino.
1. The redispersible latex ufa uli ndi mgwirizano wabwino kwambiri, womwe ukhoza kupititsa patsogolo mgwirizano wa matope omangira, kupititsa patsogolo kumamatira pakati pa matope ndi zinthu zoyambira, komanso kupititsa patsogolo ntchito. Ndizoyenera zomangira ndi matope omwe amafunikira mphamvu zomangirira kwambiri. munda, chiyembekezo cha msika ndi chotakata.
2. Mu dongosolo la kapangidwe ka redispersible latex ufa, mitundu yosiyanasiyana ya ma polima emulsion yochokera ku acrylic emulsion amasankhidwa ndikusakaniza molingana ndi chiŵerengero choyenera, chomwe chingapereke kusewera kwathunthu ku ubwino wawo, kupititsa patsogolo ntchito ya ufa wa latex, ndi kukulitsa kukula kwa ufa wa latex. kuchuluka kwa ntchito.
3. Pokonzekera ufa wa latex wopangidwanso, madzi opopera amatenthedwa mwachindunji ndi kutentha kwapaintaneti, zomwe zimapangitsa kuti ufa wa latex ukhale wabwino.
4. Mu dongosolo la redispersible latex powder, mitundu iwiri ya zosakaniza za calcium carbonate, talcum powder, kaolin ndi silicon dioxide zimasankhidwa ngati anti-caking agents ndi chiwerengero cha 1: 1-2, kotero kuti latex ufa. particles The kukulunga ndi yunifolomu kwambiri ndipo anti-caking katundu wa latex ufa ndi bwino.
5. Mu dongosolo la kupanga redispersible latex ufa, chimodzi kapena chisakanizo cha silicone defoamer ndi mineral oil defoamer amasankhidwa ngati defoamer pa chiwerengero chachikulu cha 1: 1, chomwe chimapangitsa kuti filimu yopangira filimu ya latex powder. kumawonjezera kugwirizana kwa matope.
6. Kukonzekera kwa ufa wa latex wopangidwanso ndi kosavuta komanso kosavuta kuzindikira mafakitale.
Nthawi yotumiza: Mar-01-2023