Redispersible Polymer Powder (RDP) ndi ufa wa polima womwe ukhoza kubwezeretsedwanso m'madzi kuti upange emulsion yokhazikika. Amagwiritsidwa ntchito kwambiri pazinthu zopangira simenti monga matope osakaniza. Zigawo zake zazikulu nthawi zambiri zimakhala ethylene-vinyl acetate copolymer (EVA), styrene-acrylate copolymer, ndi zina zotero. Makamaka ngati zomatira, kuwongolera kwake kwamitundu yambiri kumawongolera kwambiri machitidwe opangira simenti. Kuchita kwakuthupi ndi kulimba.
1. Limbikitsani kumamatira
Kumamatira kwa zida zopangira simenti ndi nkhani yofunika kwambiri pakumanga, ndipo luso lomangirira la zida zachikhalidwe za simenti ndizofooka. Makamaka akagwiritsidwa ntchito ku magawo osiyanasiyana, mavuto monga kukhetsa ndi kung'amba nthawi zambiri amayamba mosavuta. Redispersible latex powder amagwiritsidwa ntchito ngati chomangira muzitsulo za simenti, ndipo zotsatira zake zazikulu ndikuwongolera kwambiri mphamvu yomangira.
Pambuyo redispersible latex ufa wothira simenti matope m'madzi, akhoza kupanga mosalekeza polima filimu ndi particles mu zinthu simenti ofotokoza. filimu yamtunduwu sikuti imakhala ndi zomatira zabwino zokha, komanso imathanso kukulitsa mphamvu yolumikizirana yamakina pakati pa zinthu zoyambira ndi simenti, kuwonjezera mphamvu ya mawonekedwe, potero kuwongolera mphamvu yolumikizirana pakati pa zida za simenti ndi zida zosiyanasiyana m'munsi. Itha kuthetsa bwino vuto lomangirira zinthu zachikhalidwe za simenti ndi magawo osalala kapena otsika osamwa madzi (monga matailosi a ceramic, galasi, ndi zina).
2. Sinthani kusinthasintha ndi kukana ming'alu
Pambuyo pa zinthu za simenti zolimba, nthawi zambiri zimakhala zovuta kusweka chifukwa cha kuphulika kwawo kwakukulu, makamaka chifukwa cha kusintha kwa kutentha ndi mphamvu zakunja. Chochitika chophwanyika chimakhala chowonekera kwambiri. Kanema wopangidwa ndi chigawo cha polima mu redispersible latex ufa atatha kuumitsa ali ndi kusinthasintha kwabwino, amatha kusokoneza kupsinjika ndikuchepetsa kuwonongeka kwa zinthu ndi mphamvu zakunja, motero kuwongolera kusinthasintha ndi kukana kwa ming'alu ya zida zopangira simenti.
Pambuyo pa ufa wina wa redispersible latex ufa wosakanizidwa ndi zinthu zopangidwa ndi simenti, kulimba kwa zinthuzo kumakhala bwino kwambiri, komwe kungathe kuchitapo kanthu m'madera okhudzidwa ndi nkhawa ndi kuchepetsa kuchitika kwa ming'alu. Izi ndizofunikira makamaka pazinthu zomwe zimayenera kupirira mapindikidwe akunja (monga makina otchinjiriza kunja kwa khoma, zida zosinthika zopanda madzi, ndi zina).
3. Limbikitsani kusamvana kwa madzi ndi kupirira nyengo
Zopangidwa ndi simenti nthawi zambiri zimatha kusungunuka madzi kapena kuwonongeka kwa magwiridwe antchito zikakumana ndi madzi kapena chinyezi kwa nthawi yayitali. Zipangizo zamakono zopangidwa ndi simenti zimakhala ndi madzi ambiri, ndipo mphamvu zawo zimachepa kwambiri, makamaka pambuyo pa kumizidwa kwa nthawi yaitali. Redispersible latex ufa ukhoza kupititsa patsogolo kukana kwa madzi kwa zinthu zopangira simenti, makamaka chifukwa filimu ya polima yomwe imapanga pambuyo pochiritsa ndi hydrophobic, yomwe imatha kuletsa kulowa kwa madzi ndikuchepetsa kuyamwa kwamadzi.
Mapangidwe a filimu ya polima amathanso kuteteza bwino kutuluka kwa madzi mkati mwa zinthu zopangira simenti ndikupewa kuwonongeka ndi mavuto omwe amayamba chifukwa cha kutaya madzi mofulumira panthawi yowumitsa. Izi zimapangitsanso kuti ufa wopangidwanso ndi latex ugwire ntchito yofunika kwambiri pakuwongolera nyengo komanso kukana kuzizira kwa zinthu zopangidwa ndi simenti, potero kumakulitsa moyo wautumiki wa zinthuzo.
4. Kupititsa patsogolo ntchito yomanga
Redispersible latex ufa sungangosintha kwambiri mawonekedwe azinthu zopangidwa ndi simenti, komanso kupititsa patsogolo ntchito yomanga. Pambuyo pophatikiza ufa wa latex, kugwira ntchito, kusunga madzi ndi madzi amadzimadzi a zinthu zopangidwa ndi simenti zimakhala bwino kwambiri. Redispersible latex ufa ukhoza kuonjezera mafuta a matope a simenti, kupangitsa kuti ikhale yosavuta kugwiritsa ntchito ndi kufalikira, potero kuchepetsa zovuta ndi zolakwika pakumanga ndi kupititsa patsogolo ntchito.
Ma polima omwe ali mu latex ufa amathanso kukonza kusungidwa kwa madzi kwa zinthu zopangidwa ndi simenti, kuchepetsa kutulutsa magazi kwazinthu, kupewa kutaya madzi msanga kwa slurry, ndikuwonetsetsa kuti zidazo zili ndi madzi okwanira kuti azitha kuchitapo kanthu panthawi yowumitsa. Izi sizimangopangitsa kuti mphamvu ya zinthu ikhale yofanana, komanso imapangitsa kuti ntchito yomanga ikhale yabwino.
5. Sinthani kukana kwamphamvu ndi kukana kuvala
Pochita ntchito, zida za simenti nthawi zambiri zimafunika kupirira zovuta zina zakunja, monga kuyenda, kugundana, ndi zina zotero. Zopangidwa ndi simenti sizikuyenda bwino ndipo zimakonda kuvala kapena kusweka mosavuta. Redispersible latex ufa ukhoza kupititsa patsogolo kukana ndi kuvala kwa zinthuzo kudzera mu kusinthasintha ndi kulimba kwa filimu ya polima.
Pambuyo powonjezera redispersible latex ufa, pamene zinthu zochokera simenti zimakhudzidwa ndi mphamvu zakunja, filimu ya polima yopangidwa mkati imatha kuyamwa ndi kufalitsa mphamvu zowonongeka ndikuchepetsa kuwonongeka kwa pamwamba. Pa nthawi yomweyi, mapangidwe a filimu ya polima amachepetsanso kukhetsedwa kwa tinthu tating'onoting'ono panthawi yovala, potero kumapangitsa kuti zinthuzo zikhale zolimba.
6. Kukonda chilengedwe
Monga zinthu zowononga chilengedwe, ufa wopangidwanso ndi latex umakhala wopanda poizoni komanso wopanda vuto pakagwiritsidwa ntchito, ndipo umagwirizana ndi njira yopangira zida zamakono zomangira zobiriwira. Sikuti amachepetsa m'badwo wa zinyalala zomanga, komanso kumawonjezera moyo utumiki wa zipangizo ndi kuchepetsa kufunika kaŵirikaŵiri kukonza ndi m'malo, potero kuchepetsa mmene chilengedwe kumlingo wakuti.
Monga chomangira m'makina opangidwa ndi simenti, kugwiritsa ntchito ufa wopangidwanso ndi latex kumathandizira kwambiri zinthu zonse, kuphatikiza kumamatira, kusinthasintha, kukana ming'alu, kukana madzi komanso kukana kuvala. Kuonjezera apo, ntchito yake yomanga bwino komanso yogwirizana ndi chilengedwe zapangitsanso kuti zigwiritsidwe ntchito kwambiri muzomangamanga. Ndi kupita patsogolo kwa teknoloji ndi kuwonjezeka kwa zosowa zomanga, redispersible latex ufa udzakhala ndi gawo lofunika kwambiri pazitsulo zopangidwa ndi simenti ndikupereka njira zogwira mtima komanso zokhazikika pamakampani omangamanga.
Nthawi yotumiza: Sep-29-2024