Li-powders tsa latex tse ka sebelisoang hape ke life?

Redispersible latex powder (RLP), eo hape e tsejoang e le redispersible polymer powder (RPP), ke phofo e phallang e sa lefelloeng, e qhalakahang ka metsi e fumanoang ka ho omisa emulsion ea polymer latex. E na le likaroloana tsa polymer, hangata tse nang le sebopeho sa khetla ea mantlha, hammoho le litlatsetso tse fapaneng tse kang li-colloid tse sireletsang, li-plasticizers, dispersants le li-anti-foaming agents. RLP e etselitsoe ho ntlafatsa ts'ebetso le thepa ea lisebelisoa tsa cementitious, ho kenyelletsa li-adhesives, mortars, renders, le liphahlo, ka ho matlafatsa ho khomarela, ho feto-fetoha ha maemo, ho hanyetsa metsi, ho sebetsa le ho tšoarella.

Mokhoa oa ho etsa tlhahiso ea phofo ea latex e ka sebelisoang hape e kenyelletsa mehato e mengata:

1. Tlhahiso ea Emulsion ea Polymer: Ts'ebetso e qala ka tlhahiso ea emulsion ea polymer ka polymerization ea li-monomers tse kang vinyl acetate, ethylene, acrylic esters, kapa styrene-butadiene ka pel'a li-surfactants, li-emulsifiers le li-stabilizers. Emulsion polymerization reaction e tloaelehile ho etsoa ka metsing tlas'a maemo a laoloang ho hlahisa li-dispersions tse tsitsitseng tsa latex.
2. Spray Drying: The emulsion polymer e ka nako eo tlas'a ho fafatsa ho omisa, tshebetso e moo emulsion e atomized ka marotholi a matle le ho kenngoa ka mocheso o chesang moea molapo ka hare ho omisa kamoreng. Ho fetoha mouoane ka potlako ha metsi ho tloha marotholi ho lebisa ho thehoeng ha likaroloana tse tiileng, tse bokelloang e le phofo e omileng ka tlaase ho kamoreng ea ho omisa. Nakong ea ho omisoa ha spray, li-additives tse kang li-colloid tse sireletsang le li-plasticizers li ka kenngoa ka har'a likaroloana tsa polymer ho ntlafatsa botsitso le ts'ebetso ea tsona.
3. Particle Surface Treatment: Ka mor'a ho omisa ka ho fafatsa, phofo e ka sebelisoang hape ea latex e ka 'na ea phekoloa ka holim'a metsi ho fetola thepa ea eona le litšobotsi tsa eona tsa tshebetso. Kalafo ea holim'a metsi e ka 'na ea kenyelletsa tšebeliso ea litlolo tse eketsehileng kapa ho kenyeletsoa ha li-additives tse sebetsang ho matlafatsa ho khomarela, ho thibela metsi, kapa ho lumellana le likarolo tse ling tsa cementitious formulations.
4. Ho Paka le ho Boloka: Poole ea ho qetela ea latex e qhalakantsoeng e kenngoa ka mekotleng e thibelang mongobo kapa lijana ho e sireletsa ho tloha mongobo oa tikoloho le tšilafalo. Maemo a nepahetseng a ho paka le ho boloka a bohlokoa ho boloka boleng le botsitso ba phofo ka nako.

Redispersible latex powder hangata e tšoeu kapa ha bosoeu ka 'mala 'me e na le kabo ea boholo bo botle ba likaroloana, ho tloha ho li-micrometer tse' maloa ho isa ho mashome a micrometer. E qhalakanngoa habonolo ka metsing ho etsa li-emulsion tse tsitsitseng kapa li-dispersions, tse ka kenyelletsoang habonolo ka lihlahisoa tsa cementitious nakong ea ho kopanya le ho sebelisoa. RLP e sebelisoa haholo indastering ea kaho e le tlatsetso e feto-fetohang ho ntlafatsa ts'ebetso, ts'ebetso, le ho tšoarella ha lisebelisoa tse fapaneng tsa moaho le lits'ebetso.