Lefapheng la li-adhesive tsa polymer, ho fetoha ha maemo ho 'nile ha phehelloa ka lilemo tse ngata.Ka tlhokahalo ea lihlahisoa tse tšoarellang le tse tsitsitseng haholoanyane, nts'etsopele ea li-adhesive tsa polymer e fetohile ntho e tlang pele.Nts'etsopele e 'ngoe e bonts'itseng ts'episo ke ts'ebeliso ea li-blend tsa RDP polymer binder.
RDP, kapa redispersible polymer powder, ke polima e omisitsoeng le ho siloa hore e be phofo, ebe e ka qhaloa hape ka mokelikeli ho etsa emulsion e ncha kapa ho roala.Phofo e entsoe ka li-polymer tse fapaneng tse kenyelletsang vinyl acetate-ethylene (VAE), vinyl acetate-ethylene (VAEO), le vinyl acetate-ethylene ester (VA-VE).RDP e 'nile ea sebelisoa haholo ho sekhomaretsi le ho koahela, hammoho le ho sebelisa seretse le konkreite.Thepa ea eona e babatsehang ea ho etsa lifilimi le bokhoni ba ho ntlafatsa ho khomarela, ts'ebetso le ho fetoha ha maemo ho etsa hore e be khetho e ratoang liindastering tse ngata.
Ha e kopantsoe le li-polymers tse ling tse kang polyvinyl acetate (PVA), rabara ea styrene-butadiene (SBR) le rabara ea carboxyl styrene-butadiene (XSB), RDP e ka ntlafatsa haholo ho fetoha ha maemo a sehlahisoa sa ho qetela.Sena se bakoa ke bokhoni ba RDP ba ho eketsa polasetiki le elasticity ea li-polymers.Ka ho sebelisa lisebelisoa tsena ho etsa filimi e matla, RDP e ka ntlafatsa matla a tlamahano ea sehlahisoa sa ho qetela 'me sa etsa hore se se ke sa thijoa ho senya le ho senyeha.
O mong oa melemo ea mantlha ea ho sebelisa metsoako ea likhomaretsi tsa polymer ea RDP ke ho feto-fetoha ha tsona.E ka sebelisoa ka mefuta e fapaneng ea li-substrates, ho kenyelletsa lehong, konkreite le tšepe, ntle le ho fana ka ts'ebetso kapa ho tšoarella.Ho feta moo, e ka etsoa ka maemo a fapaneng a ho feto-fetoha le maemo ho latela litlhoko tse lakatsehang tsa tšebeliso.Sena se lumella ho feto-fetoha ho hoholo ha moralo oa sehlahisoa le bokhoni ba ho theha tharollo bakeng sa lits'ebetso tse ikhethileng.
Molemo o mong oa ho sebelisa motsoako oa RDP polymer binder ke ho sebetsa hantle ha oona.Theko ea eona e batlang e le tlase ha e bapisoa le mefuta e meng ea likhomaretsi e etsa hore e be khetho e ntle bakeng sa liindasteri tse ngata.E boetse e bonolo ho e sebelisa 'me e ka kenyelletsoa litlolo tse seng li ntse li le teng ntle le liphetoho tse kholo.
Metsoako ea RDP polymer binder e ka ntlafatsa boleng ba sehlahisoa sa ho qetela.Hobane e fana ka phetoho e kholo le ho ntlafatsa ho khomarela, e lelefatsa bophelo ba sehlahisoa mme e fokotsa tlhokahalo ea ho lokisoa khafetsa kapa ho nkeloa sebaka.Ha nako e ntse e ea, sena se ka fella ka ho boloka litšenyehelo tse kholo le ho eketsa khotsofalo ea bareki.
Tšebeliso ea li-blend tsa RDP polymer binder e bonts'a ts'episo e kholo ea ho eketsa ho fetoha ha maemo lihlahisoa tse fapaneng.Ho feto-fetoha ha eona, ho boloka litšenyehelo, le bokhoni ba ho ntlafatsa boleng ba kakaretso ea sehlahisoa sa ho qetela ho etsa hore e be khetho ea bohlokoa liindastering tse ngata.Ts'ebeliso ea likhomaretsi tsa polymer ea RDP e kanna ea tsoela pele ho hola ka botumo ha tlhokahalo ea lihlahisoa tse tšoarellang le tse tsitsitseng e ntse e eketseha.
Nako ea poso: Oct-16-2023