Redispersible Polymer Powder ke eng?

Phofo ea polymer e ka qhaloang hape(RPP) ke phofo e sa lefelloeng, e tšoeu e fumanoang ka li-emulsion tsa polymer tse omisang. E na le likaroloana tsa resin ea polymer tse qhalakantsoeng ka metsing ho etsa emulsion, e ntan'o omisoa ka mokhoa oa phofo. RPP e na le motsoako oa lipolymers, hangata vinyl acetate ethylene (VAE), vinyl acetate versatate (VAc / VeoVa), acrylics, le copolymers tse ling. Li-polymer tsena li khethoa ho ipapisitsoe le thepa ea tsona e ikhethileng le lits'ebetso tse reriloeng.

Mona ke tse ling tsa litšobotsi tsa bohlokoa le thepa ea phofo ea polymer e ka sebelisoang hape:

1. Tlhahiso ea Lifilimi: Ha e kopantsoe le metsi, likaroloana tsa RPP lia qhalana hape 'me li etsa filimi ea polima e tenyetsehang ha e omisoa. Filimi ena e fana ka momahano, momahano, le ho tšoarella ho li-substrates tse fapaneng, joalo ka konkreite, seretse, sekhomaretsi sa lithaele le liphahlo.
2. Ho khomarela: RPP e ntlafatsa ho khomarela pakeng tsa lisebelisoa tse fapaneng, ho kenyelletsa le li-substrates le lira, lithaele le likhomaretsi, le likhoele le li-binders. E ntlafatsa matla a bond mme e thibela delamination kapa detachment ea thepa ha nako e ntse e ea.
3. Ho feto-fetoha ha maemo: RPP e fana ka maemo a bonolo ho lira, likhomaretsi le liretse, ho li lumella ho amohela motsamao oa substrate, katoloso ea mocheso, le likhatello tse ling ntle le ho phatloha kapa ho hloleha. Thepa ena ke ea bohlokoa bakeng sa ho boloka botšepehi ba lisebelisoa tse sebelisoang.
4. Khanyetso ea Metsi: RPP e ntlafatsa ho hanyetsa metsi ha metsoako, e etsa hore e tšoanelehe bakeng sa libaka tsa ka ntle kapa tse metsi. E thusa ho thibela ho kenella ha mongobo le ho sireletsa li-substrates tse ka tlaase ho senya.
5. Nako e telele: RPP e ntlafatsa ho tšoarella le boemo ba leholimo ba lisebelisoa ka ho ntlafatsa ho hanyetsa ha tsona mahlaseling a UV, ho pepeseha ha lik'hemik'hale, ho khoptjoa le ho tsofala. E lelefatsa nako ea bophelo ea lirafshoa, likhomaretsi le lirekere, e fokotsa litlhoko tsa tlhokomelo le litšenyehelo.
6. Mosebetsi: RPP e ntlafatsa ts'ebetso le ts'ebetso ea litlhahlobo ka ho ntlafatsa phallo, boemo le ho ata. E netefatsa tšireletso e tšoanang, ts'ebeliso e bonolo, le ts'ebetso e tsitsitseng ea lisebelisoa tse sebelisoang.
7. Taolo ea Rheology: RPP e sebetsa e le phetoho ea rheology, e susumetsang viscosity, thixotropy, le sag resistance of formulations. E thusa ho ntlafatsa thepa ea ts'ebeliso le ts'ebetso ea likoahelo, likhomaretsi le seretse.
8. Ho lumellana: RPP e lumellana le mefuta e mengata e fapaneng ea li-additives, li-filler, li-pigments, le li-binders tse sebelisoang hangata ha li etsoa. Ha e ame hampe thepa kapa ts'ebetso ea likarolo tse ling, ho netefatsa botsitso ba sebopeho le ho tsitsa.

Redispersible polymer powder e fumana ts'ebeliso e kholo lits'ebetsong tsa kaho, ho kenyeletsoa sekhomaretsi sa lithaele, lirekere tse thehiloeng ho samente, metsoako ea ho ikemela, li-membrane tse thibelang metsi, le lirekere tsa ho lokisa. E boetse e na le lits'ebetso ho lirafshoa, likhomaretsi, li-sealant, masela le indasteri ea pampiri, e tlatsetsang ts'ebetsong le ho tšoarella ha lisebelisoa le lihlahisoa tse fapaneng.