Redispersible polima ufa (RDP) ndi polima wogwiritsidwa ntchito ngati chowonjezera mu matope osakaniza owuma. RDP ndi ufa wopangidwa ndi kupopera mbewu mankhwalawa polima emulsion. Pamene RDP anawonjezera madzi ndi kupanga khola emulsion amene angagwiritsidwe ntchito kupanga matope. RDP ili ndi zinthu zambiri zomwe zimapangitsa kuti ikhale yowonjezera mumatope osakaniza. Zinthu izi zikuphatikizapo:
Kusunga madzi: RDP imathandiza kusunga madzi mumtondo, motero kumapangitsa kuti mutowo ukhale wogwira ntchito komanso kuchepetsa kuchuluka kwa madzi ofunikira.
Kumamatira: RDP imatha kupititsa patsogolo kumamatira pakati pa matope ndi gawo lapansi, potero kumapangitsa mphamvu ndi kulimba kwa matope.
Kugwira ntchito: RDP imatha kupititsa patsogolo mtundu wazinthu zomwe zamalizidwa popangitsa kuti matope azisavuta kukonza.
Kukhalitsa: RDP imatha kukulitsa kukhazikika kwa matope, ndikupangitsa kuti zisawonongeke komanso kugwa kwanyengo.
RDP ndi chowonjezera chamitundumitundu chomwe chitha kugwiritsidwa ntchito mumatope osiyanasiyana owuma. Ndizoyenera makamaka matope omwe amagwiritsidwa ntchito kunja monga stucco ndi zomatira matailosi. RDP itha kugwiritsidwanso ntchito mumatope omwe amagwiritsidwa ntchito mkati mwazinthu zamkati monga ma fillers olowa ndi kukonza zinthu.
Nawa maubwino ena ogwiritsira ntchito RDP mumatope osakaniza:
Konzani kasungidwe ka madzi
Limbikitsani kumamatira
Limbikitsani magwiridwe antchito
kuchuluka durability
kuchepetsa kusweka
kuchepetsa kuwonongeka kwa madzi
onjezerani kusinthasintha
Limbikitsani kusamvana ndi nyengo
RDP ndi chowonjezera chotetezeka komanso chothandiza chomwe chitha kugwiritsidwa ntchito kupititsa patsogolo ntchito ya matope osakaniza. Ndi chida chamtengo wapatali kwa makontrakitala ndi omanga omwe akufuna kupanga matope olimba, apamwamba kwambiri.
Nayi mitundu yodziwika bwino ya RDP yomwe imagwiritsidwa ntchito mumatope osakaniza:
Vinyl Acetate Ethylene (VAE): VAE RDP ndi mtundu wofala kwambiri wa RDP. Ndi njira yosinthika komanso yotsika mtengo yomwe ingagwiritsidwe ntchito mumatope osiyanasiyana.
Styrene Butadiene Acrylate (SBR): SBR RDP ndi njira yokwera mtengo kuposa VAE RDP, koma imapereka madzi osungira bwino komanso kumamatira.
Polyurethane (PU): PU RDP ndi mtundu wokwera mtengo kwambiri wa RDP, koma uli ndi madzi osungira bwino, omatira komanso olimba.
Nthawi yotumiza: Jun-09-2023