Redispersible polymer powders (RDP) ke metsoako e rarahaneng ea li-polymers le li-additives tse sebelisoang haholo ho thepa ea kaho, haholo-holo ha ho etsoa lirekere tse omileng.Liphofshoana tsena li phetha karolo ea bohlokoa ho ntlafatsa ts'ebetso le litšoaneleho tsa lisebelisoa tse sa tšoaneng tsa kaho tse kang li-adhesives tsa lithaele, li-grouts, metsoako ea ho ikemela le li-plaster tsa cementitious.
Likarolo tsa bohlokoa:
Motheo oa polymer:
Ethylene vinyl acetate (EVA): EVA copolymer e atisa ho sebelisoa ho RDP ka lebaka la thepa ea eona e babatsehang ea ho etsa lifilimi, ho khomarela le ho fetoha habonolo.Likahare tsa vinyl acetate ka har'a copolymer li ka fetoloa ho fetola thepa ea polymer.
Vinyl Acetate vs. Ethylene Carbonate: Ho itšetlehile ka litlhoko tse khethehileng tsa kopo, bahlahisi ba ka sebelisa ethylene carbonate ho e-na le vinyl acetate.Ethylene carbonate e ntlafalitse ho hanyetsa metsi le ho khomarela maemong a mongobo.
Acrylics: Acrylic polymers, ho kenyeletsoa li-acrylic tse hloekileng kapa copolymers, li sebelisoa bakeng sa ho hanyetsa boemo ba leholimo bo ikhethang, ho tšoarella, le ho feto-fetoha ha maemo.Li tsejoa ka ho fana ka sekhomaretsi se setle ho mefuta e fapaneng ea li-substrates.
Tšireletso ea colloid:
Hydroxypropyl methylcellulose (HPMC): HPMC ke colloid e sireletsang e atisang ho sebelisoa ho RDP.E ntlafatsa redispersibility ea likaroloana tsa polymer le ho ntlafatsa thepa eohle ea phofo.
Polyvinyl alcohol (PVA): PVA ke colloid e 'ngoe e sireletsang e thusang botsitso le ho hasana ha likaroloana tsa polymer.E boetse e phetha karolo ea ho laola viscosity ea phofo.
Plasticizer:
Dibutyl Phthalate (DBP): DBP ke mohlala oa plasticizer eo hangata e kenngoa ho RDP ho ntlafatsa ho feto-fetoha ha maemo le ts'ebetso.E thusa ho theola mocheso oa phetoho ea khalase ea polymer, e etsa hore e be elastic haholoanyane.
filler:
Calcium Carbonate: Li-fillers tse kang calcium carbonate li ka eketsoa ho ntlafatsa bongata ba phofo le ho fana ka mokhoa o theko e boima oa ho lokisa thepa e kang sebopeho, porosity le opacity.
Li-stabilizers le li-antioxidants:
Li-stabilizers: Tsena li sebelisetsoa ho thibela ho senyeha ha polymer nakong ea ho boloka le ho sebetsa.
Antioxidants: Antioxidants e sireletsa polymer ho senyeha ha oxidative, ho netefatsa hore RDP e phela nako e telele.
Mesebetsi ea karolo ka 'ngoe:
Polymer base: E fana ka thepa ea ho etsa lifilimi, ho khomarela, ho feto-fetoha ha maemo le matla a mochine ho sehlahisoa sa ho qetela.
Protective colloid: Ntlafatsa ho redispersibility, botsitso le ho hasana ha likaroloana tsa polymer.
Plasticizer: E ntlafatsa ho tenyetseha le ho sebetsa habonolo.
Fillers: Fetola lintho tse kang sebopeho, porosity, le opacity.
Li-stabilizers le li-antioxidants: Thibela ho senyeha ha polymer nakong ea ho boloka le ho sebetsa.
ha re phethela:
Redispersible polymer powder (RDP) ke motsoako o feto-fetohang le oa bohlokoa oa thepa ea sejoale-joale ea moaho.Sebopeho sa eona sa lik'hemik'hale, ho kenyelletsa le li-polymers tse kang EVA kapa li-resin tsa acrylic, li-colloid tse sireletsang, li-plasticizers, li-fillers, stabilizers le li-antioxidants, li hlophisitsoe ka hloko ho finyella litlhoko tse khethehileng tsa kopo ka 'ngoe.Ho kopanngoa ha likarolo tsena ho thusa ho ntlafatsa phofshoana ea phofo, matla a tlamo, ho feto-fetoha ha maemo le ts'ebetso e akaretsang ka mokhoa o omileng oa ho kopanya seretse.
Nako ea poso: Dec-18-2023