Tšebeliso eaRedispersible latex powder (RDP) ka li-putty powder formulations e hapile tlhokomelo indastering ea kaho le thepa ea mohaho ka lebaka la tšusumetso ea eona e kholo ho thepa ea sehlahisoa sa ho qetela. Li-latex powders tse ka sebelisoang hape ha e le hantle ke li-polymer powders tse khonang ho etsa li-dispersions ha li kopantsoe le metsi. Li-dispersions tsena li fana ka litšobotsi tse fapaneng tse molemo ho putty, ho kenyelletsa ho khomarela ho ntlafalitsoeng, ho tenyetseha ha maemo, ho hanyetsa metsi, le, haholo-holo, ts'ebetso e thata.
Utloisisa Putty Powder le Redispersible Latex Powder
Putty powder ke sehlahisoa se entsoeng ka phofo se sebelisoang haholo-holo ho tlatsa likheo, boreleli, le ho lokisa likaroloana tsa ho penta kapa tse ling. Sebopeho sa motheo sa phofo ea putty hangata se kenyelletsa li-binders (mohlala, samente, gypsum), li-filler (mohlala, talc, calcium carbonate), le li-additives (mohlala, li-retarders, accelerators) tse laolang thepa ea eona ea ho sebetsa. Ha e kopane le metsi, putty powder e etsa setlolo se thatafatsang ha nako e ntse e ea, se etsa sebaka se tšoarellang, se boreleli.
Redispersible latex powder (RDP) ke phofo ea polima e qhibilihang ka metsing e entsoeng ka li-spray-drying aqueous dispersions tsa polymer emulsions. Li-polymer tse tloaelehileng tse sebelisoang ho RDP li kenyelletsa styrene-butadiene (SBR), acrylics, le vinyl acetate-ethylene (VAE). Ho eketsoa ha RDP ho putty powder ho ntlafatsa thepa ea 'mele le ea mochini oa putty e phekotsoeng, haholo-holo ka ho ntlafatsa matla a tlamahano, ho feto-fetoha ha maemo, le ho hanyetsa ho phunyeha.
Ho thatafala ha Putty Powder
Ho thatafala ha putty powder ho etsahala ha likaroloana tse kopanyang (joaloka samente kapa gypsum) li kena ka lik'hemik'hale ka metsi. Ts'ebetso ena ka kakaretso e bitsoa hydration (bakeng sa li-putty tse thehiloeng ho samente) kapa crystallization (bakeng sa li-putty tse thehiloeng ho gypsum), 'me e fella ka ho thehoa ha mekhahlelo e tiileng e thatafalang ka nako. Leha ho le joalo, ts'ebetso ena e ka susumetsoa ke lintlha tse ngata, tse kang ho ba teng ha li-additives, mongobo, mocheso, le sebopeho sa putty ka boeona.
Karolo ea RDP ts'ebetsong ena e thata ke ho matlafatsa maqhama pakeng tsa likaroloana, ho ntlafatsa ho feto-fetoha ha maemo, le ho laola ho fetoha mouoane ha metsi. RDP e sebetsa joalo ka setlamo seo, hang ha se qhalakane hape ka metsing, se theha marang-rang a polymeric ka har'a putty. Marang-rang ana a thusa ho tšoara limolek'hule tsa metsi nako e telele, ho fokotsa lebelo la ho fetoha mouoane 'me kahoo ho eketsa nako ea ho sebetsa ea putty. Ho feta moo, marang-rang a polymer a thusa ho theha boima bo matla, bo momahaneng bo thata ka ho ntlafatsa tšebelisano ea likaroloana.
Tšusumetso ea Redispersible Latex Powder Mokhoeng oa ho thatafatsa
Mokhoa o ntlafetseng oa ho sebetsa le nako ea ho bula:
Ho kenyelletsoa ha RDP ho li-putty formulations ho matlafatsa ts'ebetso ka ho fokotsa ts'ebetso ea ho omisa, ho fana ka nako e eketsehileng ea ho sebetsa. Sena se molemo haholo mererong e meholo moo putty e hlokang ho hasana libakeng tse ngata pele e qala.
Keketseho ea ho Fetola maemo:
E 'ngoe ea litlamorao tse kholo tsa ho eketsa RDP ke ntlafatso ea maemo a bonolo. Le ha li-putty tsa setso li na le tšekamelo ea ho se tsitse ha li thatafala, RDP e kenya letsoho ho thepa e phekolehang habonolo, e fokotsang monyetla oa ho peperana ka lebaka la khatello ea maikutlo kapa ho fetoha ha mocheso.
Matla le Tšireletseho:
Li-putty tse fetotsoeng tsa RDP li bonts'a matla a holimo a ho hatella le ho hanyetsa ho senyeha ha ho bapisoa le libopeho tse sa fetoloang. Sena se bakoa ke ho thehoa ha matrix a polymer e matlafatsang botšepehi ba sebopeho sa putty e thata.
Ho fokotseha ho fokotseha:
Marang-rang a polymeric a entsoeng ke phofo ea latex e redispersible e boetse e thusa ho fokotsa shrinkage nakong ea ho phekola. Sena ke sa bohlokoa ka ho khetheha ho thibela ho thehoa ha mapetsong, a ka senyang ts'ebetso le botle ba putty.
Mathata a Metsi:
Phofo ea putty e kopantsoeng le phofo ea latex e qhalakantsoeng e atisa ho thibela metsi. Likaroloana tsa latex li etsa lera la hydrophobic ka har'a putty, e leng se etsang hore sehlahisoa se phekotsoeng se se ke sa monngoa ke metsi, ka hona, se loketse lits'ebetso tsa kantle.
Ho kenyelletsa phofo ea latex e ka sebelisoang hape ka har'a li-putty formulations e ntlafatsa haholo thepa ea eona, haholo-holo nakong ea ho thatafala. Melemo e ka sehloohong ea RDP e kenyelletsa ho sebetsa hantle, ho feto-fetoha ha maemo, ho eketseha ha matla le ho tšoarella, ho fokotseha ho fokolang, le ho thibela metsi ho betere. Lintlafatso tsena li etsa hore li-putty tse fetotsoeng tsa RDP li tšoanelehe haholoanyane bakeng sa lits'ebetso tsa kahare le kantle, li fana ka bophelo bo bolelele le ts'ebetso tlasa maemo a fapaneng a tikoloho.
Bakeng sa litsebi tsa kaho le bahlahisi, tšebeliso eaphofshoana ea morao-rao ea latex e fana ka mokhoa o bonolo empa o atlehang oa ho ntlafatsa thepa ea li-putty powders tse tloaelehileng, e leng se hlahisang sehlahisoa se bonolo ho se sebelisa, se tšoarellang haholoanyane, 'me se sa khone ho senya kapa ho fokotseha ha nako e ntse e ea. Ka ho ntlafatsa sebopeho ka RDP, li-putty powders li fetoha tse ngata haholoanyane, ka ts'ebetso e ntlafalitsoeng ka kakaretso mabapi le ho khomarela, ho thatafala, le ho hanyetsa likarolo.
Nako ea poso: Mar-20-2025