Phofo ea Polymer e ka Qhibilihang Bocha (RDP)ke ntho e kang phofo e entsoeng ka ho omisa emulsion ea polymer, e sebelisoang hangata linthong tse kang kaho, liphahlo, likhomaretsi le likhomaretsi tsa thaele. Mosebetsi oa eona o ka sehloohong ke ho qhalana hape ho ba emulsion ka ho eketsa metsi, ho fana ka ho khomarela hantle, ho tenyetseha, ho hanyetsa metsi, ho hanyetsa mapetso le ho hanyetsa boemo ba leholimo.
Sebopeho sa Redispersible Polymer Powder (RDP) se ka sekasekwa ho latela mahlakore a mangata, haholo-holo ho kenyeletsoa le dikarolo tse latelang:
1. Resin ea polymer
Karolo ea mantlha ea Phofo ea Polymer e Nchafalitsoeng ke resin ea polymer, eo hangata e leng polymer e fumanoang ka polymerization ea emulsion. Resin e tloaelehileng ea polymer e kenyelletsa:
Joala ba polyvinyl (PVA): bo na le matla a ho khomarela hantle le thepa ea ho etsa filimi 'me bo sebelisoa haholo thepa ea kaho.
Li-polyacrylate (tse kang li-polyacrylate, li-polyurethane, jj.): li na le ho tenyetseha ho hoholo, matla a ho kopana, le ho hanyetsa metsi.
Polystyrene (PS) kapa ethylene-vinyl acetate copolymer (EVA): e atisa ho sebelisoa ho ntlafatsa thepa ea ho etsa filimi, ho eketsa ho hanyetsa metsi le ho hanyetsa boemo ba leholimo.
Polymethyl methacrylate (PMMA): Polymer ena e na le thibelo e ntle ea botsofali le ponaletso.
Li-resin tsena tsa polymer li etsa li-emulsion ka liketso tsa polymerization, ebe metsi a ka har'a emulsion a tlosoa ka ho omisa ka spray kapa ho omisa ka serame, 'me qetellong ho fumanoa Redispersible Polymer Powder (RDP) ka mokhoa oa phofo.
2. Di-surfactant
E le ho boloka botsitso pakeng tsa dikarolwana tsa polymer le ho qoba ho kopana ha phofo, ho tla eketsoa palo e loketseng ya di-surfactants nakong ya tshebetso ya tlhahiso. Karolo ya di-surfactants ke ho fokotsa tsitsipano ya bokahodimo pakeng tsa dikarolwana le ho thusa dikarolwana ho hasana ka metsing. Di-surfactants tse tlwaelehileng di kenyeletsa:
Li-surfactant tse seng tsa ionic (tse kang li-polyether, li-polyethylene glycols, jj.).
Li-surfactant tsa Anionic (tse kang matsoai a mafura a acid, alkyl sulfonate, jj.).
Li-surfactant tsena li ka ntlafatsa ho qhalana ha Redispersible Polymer Powder (RDP), e leng se lumellang phofo ea latex ho bopa emulsion hape kamora ho eketsa metsi.
3. Li-filler le li-thickeners
E le ho lokisa tshebetso ya phofo ya latex le ho fokotsa ditjeo, di-filler le di-thickener tse ding le tsona di ka eketswa nakong ya tlhahiso. Ho na le mefuta e mengata ya di-filler, mme tse tlwaelehileng di kenyeletsa:
Calcium carbonate: setlatsetso se sebediswang haholo se ka eketsang ho kgomarela le ho ntlafatsa katleho ya ditjeo.
Talc: e ka eketsa ho phalla le ho hanyetsa mapetso a thepa.
Liminerale tsa silicate: tse kang bentonite, graphite e atolositsoeng, jj., li ka ntlafatsa khanyetso ea mapetso le khanyetso ea metsi ea thepa.
Hangata dithickeners di sebediswa ho lokisa viscosity ya sehlahiswa ho se fetola maemo a fapaneng a kaho. Dithickeners tse tlwaelehileng di kenyeletsa hydroxypropyl methylcellulose (HPMC) le polyvinyl alcohol (PVA).
4. Moemeli oa ho thibela ho koaheloa
Lihlahisoa tse phofshoana, e le ho thibela ho kopana ha lintho nakong ea polokelo le lipalangoang, lintho tse thibelang ho bokella lintho li ka eketsoa nakong ea ts'ebetso ea tlhahiso. Lintho tse thibelang ho bokella lintho ke lintho tse ling tse ntle tse sa pheleng, tse kang aluminium silicate, silicon dioxide, jj. Lintho tsena li ka etsa filimi e sireletsang holim'a likaroloana tsa phofo ea latex ho thibela likaroloana ho kopana hammoho.
5. Lisebelisoa tse ling
Phofo ea Polymer e Nchafalitsoeng (RDP) e ka boela ea ba le lintho tse ling tse khethehileng tse eketsang ho ntlafatsa thepa e itseng:
Sehlahisoa se hananang le mahlaseli a letsatsi: se ntlafatsa ho hanyetsa boemo ba leholimo le bokhoni ba ho thibela botsofali ba thepa.
Moemeli oa antibacteria: o fokotsa kholo ea likokoana-hloko, haholo-holo ha o sebelisoa tikolohong e mongobo.
Plasticizer: e ntlafatsa ho tenyetseha le ho hanyetsa mapetso a phofo ea latex.
Antifreeze: Thibela thepa hore e se ke ea hoamisa libakeng tse mocheso o tlase, e leng se amang kaho le litlamorao tsa ts'ebeliso.
6. Mongobo
Leha Phofo ea Redispersible Polymer (RDP) e le ka sebopeho sa phofo e omileng, e boetse e hloka taolo e itseng ea mongobo nakong ea ts'ebetso ea tlhahiso, 'me mongobo hangata o laoloa ka tlase ho 1%. Mongobo o loketseng o thusa ho boloka mokelikeli le botsitso ba nako e telele ba phofo.
Karolo le tshebetso ya Phofo ya Redispersible Polymer (RDP)
Karolo ea bohlokoa ea Phofo ea Redispersible Polymer (RDP) ke hore e ka qhaloa hape ho etsa emulsion kamora ho eketsa metsi, 'me e na le litšobotsi tse latelang tsa bohlokoa tsa ts'ebetso:
Ho khomarela hantle: Ho ntlafatsa bokhoni ba ho kopanya ba ho roala le ho khomaretsa, le ho ntlafatsa matla a ho kopanya pakeng tsa thepa ea kaho.
Ho tenyetseha le ho tenyetseha: Ho ntlafatsa ho tenyetseha ha seaparo, ho ntlafatsa ho hanyetsa ha sona mapetsong le ho hanyetsa tšusumetso.
Ho hanyetsa metsi: Ho eketsa ho hanyetsa metsi ha thepa, e loketseng ho sebelisoa libakeng tse kantle kapa tse mongobo.
Ho hanyetsa boemo ba leholimo: Ho ntlafatsa ho hanyetsa mahlaseli a kotsi a UV, ho thibela botsofali le thepa e 'ngoe, le ho eketsa nako ea ts'ebeletso ea eona.
Ho hanyetsa mapetso: E na le khanyetso e ntle ea mapetso 'me e loketse litlhoko tsa ho thibela mapetso mererong ea kaho.
RDPe etsoa ka ho fetola emulsion polymer hore e be phofo ka mokhoa o rarahaneng. E na le thepa e mengata e babatsehang 'me e sebelisoa haholo kahong, liphahlong, likhomaretsing le masimong a mang. Khetho le karolo ea metsoako ea eona li ama ka ho toba ts'ebetso ea eona ea ho qetela.
Nako ea poso: Hlakubele-11-2025