Redispersible polymer powder (RDP) ke copolymer ea vinyl acetate le ethylene e hlahisoang ka mokhoa oa ho omisa. Ke motsoako oa bohlokoa lits'ebetsong tse fapaneng tsa kaho, ho fana ka mamarelo, ho tenyetseha le ho tšoarella ho lihlahisoa tse thehiloeng ho samente. Ho etsa li-polymer powders tse ka sebelisoang hape ho kenyelletsa mehato e mengata.
1. Khetho ea thepa e tala:
Vinyl acetate-ethylene copolymer: Thepa e ka sehloohong e tala ea RDP ke copolymer ea vinyl acetate le ethylene. Copolymer ena e khethiloe bakeng sa thepa ea eona e babatsehang ea sekhomaretsi le bokhoni ba ho eketsa ho tenyetseha le ho tiea ha thepa ea samente.
2. Emulsion polymerization:
Ts'ebetso ea tlhahiso e qala ka emulsion polymerization, eo ho eona li-acetate tsa vinyl le ethylene monomers li entsoeng ka polymerized ka pel'a li-initiators le stabilizers.
Ts'ebetso ea emulsion polymerization e laoloa ka hloko ho fumana boima ba limolek'hule bo lakatsehang, sebopeho le sebopeho sa copolymer.
3. Boitšoaro le copolymerization:
Vinyl acetate le ethylene monomers li itšoara ka pel'a sekontiri ho etsa copolymer.
Ts'ebetso ea copolymerization e bohlokoa ho fumana li-polymer tse nang le thepa e lakatsehang, ho kenyeletsoa thepa e ntle ea ho etsa lifilimi le li-dispersibility.
4. Ho omisa:
Joale emulsion e kenngoa ts'ebetsong ea ho omisa ka spray. Sena se kenyelletsa ho fafatsa emulsion ka phaposing e chesang, moo metsi a fetohang mouoane, a siea ka morao likaroloana tse tiileng tsa polymer e ka qhalang.
Maemo a ho omisa, joalo ka mocheso le moea, a laoloa ka hloko ho etsa bonnete ba hore ho etsoa likaroloana tsa phofshoana e ntle e phallang ka bolokolohi.
5. Phekolo ea holim'a metsi:
Liphekolo tse holim'a metsi hangata li sebelisoa ho ntlafatsa botsitso ba polokelo le ho hlaka hape ha phofo ea polymer.
Li-additives tsa Hydrophobic kapa li-colloid tse sireletsang hangata li sebelisoa kalafong ea holim'a metsi ho thibela ho kopana ha likaroloana le ho ntlafatsa phallo ea phofo metsing.
6. Taolo ea boleng:
Mehato e tiileng ea taolo ea boleng e sebelisoa nakong eohle ea tlhahiso. Liparamente tse kang kabo ea boholo ba likaroloana, bongata ba bongata, li-monomer tse setseng le mocheso oa phetoho ea khalase li behiloe leihlo ho netefatsa hore sehlahisoa se tsitsitse.
7. Sephutheloana:
Phofo ea ho qetela ea polymer e qhalakantsoeng e kenngoa ka har'a lijana tse thibelang mongobo ho thibela ho kenngoa ha metsi, e ka 'nang ea ama ts'ebetso ea eona hampe.
Lisebelisoa tsa Redispersible Polymer Powders:
RDP e sebelisoa mefuteng e mengata ea kaho e kenyelletsang likhomaretsi tsa lithaele, metsoako ea ho ikemela, litsamaiso tsa ho qetela tsa ho koala ka ntle (EIFS) le lirekere tsa samente.
Phofo e ntlafatsa thepa e kang ho hanyetsa metsi, ho feto-fetoha ha maemo le ho khomarela, ho thusa ho ntlafatsa tshebetso e akaretsang le ho tšoarella ha thepa ena ea mohaho.
ha re phethela:
Redispersible polymer powder ke sesebelisoa se feto-fetohang se nang le lits'ebetso tsa bohlokoa indastering ea kaho. Tlhahiso ea eona e kenyelletsa khetho e hlokolosi ea lisebelisoa tse tala, polymerization ea emulsion, ho omisa ka spray, kalafo ea holim'a metsi le mehato e tiileng ea ho laola boleng.
Ho etsa li-polymer powders tse ka sebelisoang hape ke ts'ebetso e rarahaneng e hlokang ho nepahala le ho ela hloko lintlha tse qaqileng ho fumana sehlahisoa sa boleng bo holimo se nang le thepa e hlokahalang bakeng sa lits'ebetso tsa kaho.
Nako ea poso: Dec-18-2023