Motsoako o na le phello e ntle ho ntlafatsa ts'ebetso ea seretse se omileng se omileng. The redispersible latex phofo e entsoe ka emulsion e khethehileng ea polymer ka mor'a ho omisa. Phofo e omisitsoeng ea latex ke likaroloana tse chitja tsa 80 ~ 100mm tse bokaneng hammoho. Likaroloana tsena li qhibiliha ka metsing 'me li etsa phallo e tsitsitseng e nyenyane ho feta likaroloana tsa pele tsa emulsion, tse etsang filimi ka mor'a ho felloa ke metsi le ho omisa.
Mehato e fapaneng ea phetoho e etsa hore phofo ea latex e khonehe hape e be le thepa e fapaneng e kang ho hanyetsa metsi, ho hanyetsa alkali, ho hanyetsa boemo ba leholimo le ho fetoha ha maemo. phofo ea latex e sebelisoang ka seretse e ka ntlafatsa ho hanyetsa tšusumetso, ho tšoarella, ho hanyetsa ho apara, boiketlo ba ho haha, matla a tlamahano le momahano, ho hanyetsa boemo ba leholimo, ho hanyetsa leqhoa, ho leleka metsi, matla a ho kobeha le matla a flexural a seretse. Hang ha thepa e entsoeng ka samente e ekelitsoeng ka phofo ea latex e kopana le metsi, karabelo ea hydration e qala, 'me tharollo ea calcium hydroxide e potlakela ho fihla saturation' me likristale li fokotseha, 'me ka nako e ts'oanang, likristale tsa ettringite le li-gel tsa calcium silicate hydrate lia thehoa. Likaroloana tse tiileng li behiloe holim'a gel le likaroloana tsa samente tse se nang metsi. Ha ts'ebetso ea hydration e ntse e tsoela pele, lihlahisoa tsa hydration lia eketseha, 'me likaroloana tsa polymer butle-butle li bokellana ka har'a li-capillary pores, li etsa lera le tletseng ka holim'a gel le likaroloana tsa samente tse se nang metsi. Likaroloana tse kopantsoeng tsa polymer butle-butle li tlatsa li-pores.
Redispersible latex phofo e ka ntlafatsa thepa ea seretse e kang matla a flexural le matla a ho khomarela, hobane e ka etsa filimi ea polymer holim'a likaroloana tsa seretse. Ho na le li-pores holim'a filimi, 'me bokaholimo ba li-pores bo tletse seretse, se fokotsang khatello ea maikutlo. 'Me tlas'a ketso ea matla a ka ntle, e tla hlahisa phomolo ntle le ho senya. Ho phaella moo, seretse se etsa skeleton e thata ka mor'a hore samente e be le metsi, 'me polymer e ka har'a skeleton e na le mosebetsi oa lenonyeletso le tsamaeang, le tšoanang le lesela la' mele oa motho. Lera le entsoeng ke polymer le ka bapisoa le manonyeletso le li-ligamente, e le ho etsa bonnete ba hore ho na le elasticity le ho feto-fetoha ha skeleton e thata. boimana.
Sistimi ea seretse sa samente se fetotsoeng ka polymer, filimi e tsoelang pele le e felletseng ea polymer e kopantsoe le peista ea samente le likaroloana tsa lehlabathe, ho etsa hore seretse sohle se be setle le se teteaneng, 'me ka nako e ts'oanang se etsa marang-rang a rekere ka ho tlatsa li-capillaries le likheo. Ka hona, filimi ea polymer e ka fetisa khatello le khatello ea rekere ka katleho. Filimi ea polymer e ka koala mapetsong a shrinkage sehokelong sa seretse sa polymer, ea folisa mapetsong a ho putlama, le ho ntlafatsa ho tiisa le ho momahana ha seretse. Ho ba teng ha libaka tsa polymer tse feto-fetohang haholo le tse matla haholo li ntlafatsa ho fetoha le maemo a seretse, ho fana ka momahano le boitšoaro bo matla ho skeleton e thata. Ha ho sebelisoa matla a ka ntle, mokhoa oa ho jala ha microcrack o lieha ka lebaka la ho feto-fetoha ha maemo le elasticity ho fihlela khatello e phahameng e fihla. Li-interwoven polymer domains li boetse li sebetsa e le tšitiso ho khokahanyo ea li-microcracks ho kena mapatsong a phunyeletsang. Ka hona, phofo ea polymer e ka sebelisoang hape e ntlafatsa khatello ea maikutlo le ho se atlehe ha thepa.
Nako ea poso: Mar-10-2023