Impuphu ye-latex ephinde ihlakazeke nezinye izihlanganisi ezingaphili (njengesimende, i-slaked lime, i-gypsum, njll.) kanye nama-aggregates ahlukahlukene, ama-fillers nezinye izithasiselo (njenge-methyl hydroxypropyl cellulose ether, i-starch ether, i-lignocellulose, i-hydrophobic agent, njll.) yokuxuba ngokomzimba ukwenza i-mortar exutshwe okomile. Lapho i-mortar exutshwe okomile ingezwa emanzini futhi ivuselelwa, izinhlayiya ze-latex powder zizohlakazeka emanzini ngaphansi kwesenzo se-colloid evikelayo ye-hydrophilic kanye ne-mechanical shear. Isikhathi esidingekayo ukuze i-powder ye-latex ephinde ihlakazeke evamile ihlakazeke sifushane kakhulu, futhi le nkomba yesikhathi sokuxuba kabusha nayo iyipharamitha ebalulekile yokuhlola ikhwalithi yayo. Esigabeni sokuqala sokuxuba, i-latex powder isivele isiqalile ukuthinta i-rheology kanye nokusebenza kahle kwe-mortar.
Ngenxa yezici ezahlukene kanye nokuguqulwa kwempuphu ngayinye ye-latex ehlukanisiwe, lo mphumela nawo uhlukile, eminye inomphumela wokusiza ukugeleza, kanti eminye inomphumela we-thixotropy okhulayo. Indlela esebenza ngayo ithonya layo ivela ezicini eziningi, okuhlanganisa ithonya lempuphu ye-latex ekuqineni kwamanzi ngesikhathi sokuhlakazeka, ithonya le-viscosity ehlukene yempuphu ye-latex ngemva kokuhlakazeka, ithonya le-colloid evikelayo, kanye nethonya le-samente namabhande amanzi. Izithonya zifaka phakathi ukwanda kokuqukethwe komoya ku-mortar kanye nokusatshalaliswa kwama-bubble omoya, kanye nethonya lezithasiselo zayo kanye nokusebenzisana nezinye izithasiselo. Ngakho-ke, ukukhethwa okwenziwe ngokwezifiso nokuhlukanisiwe kwempuphu ye-latex ehlakazekayo kuyindlela ebalulekile yokuthinta ikhwalithi yomkhiqizo. Iphuzu elivame kakhulu ukuthi impuphu ye-latex ehlakazekayo ivame ukwandisa okuqukethwe komoya ku-mortar, ngaleyo ndlela igcobe ukwakhiwa kwe-mortar, kanye ne-viscosity yempuphu ye-latex, ikakhulukazi i-colloid evikelayo, emanzini lapho ihlakazeka. Ukwanda kokuhlushwa kusiza ukuthuthukisa ukuhlangana kwe-mortar yokwakha, ngaleyo ndlela kuthuthukiswe ukusebenza kahle kwe-mortar. Ngemva kwalokho, udoti omanzi oqukethe i-latex powder dispersion ufakwa endaweni yokusebenza. Ngokunciphisa amanzi emazingeni amathathu - ukumuncwa kwesendlalelo sesisekelo, ukusetshenziswa kokusabela kokumanziswa kwesimende, kanye nokuguquguquka kwamanzi angaphezulu emoyeni, izinhlayiya ze-resin ziyasondela kancane kancane, izixhumanisi ziyahlangana kancane kancane, futhi ekugcineni zibe ifilimu ye-polymer eqhubekayo. Le nqubo yenzeka kakhulu ezimbotsheni zodoti kanye nobuso besiqinile.
Kufanele kugcizelelwe ukuthi ukuze le nqubo iguqulwe, okungukuthi, lapho ifilimu ye-polymer ihlangana namanzi futhi, ngeke isabalale futhi, futhi i-colloid evikelayo yempuphu ye-latex ephinde ihlakazeke kumele ihlukaniswe ohlelweni lwefilimu ye-polymer. Lokhu akuyona inkinga ohlelweni lwe-alkaline cement mortar, ngoba izofakwa i-saponified yi-alkali ekhiqizwa yi-samente hydration, futhi ngesikhathi esifanayo, ukumuncwa kwezinto ezifana ne-quartz kuzoyihlukanisa kancane kancane ohlelweni, ngaphandle kokuvikelwa kwe-hydrophilicity. Ama-Colloids, angancibiliki emanzini futhi akhiwe ngokusabalala kwempuphu ye-latex ephinde ihlakazeke, angasebenza hhayi kuphela ngaphansi kwezimo ezomile, kodwa futhi nangaphansi kwezimo zokucwiliswa emanzini isikhathi eside. Ezinhlelweni ezingezona i-alkaline, njengezinhlelo ze-gypsum noma izinhlelo ezinezigcwalisi kuphela, ngesizathu esithile i-colloid evikelayo isekhona ngokwengxenye kwifilimu yokugcina ye-polymer, ethinta ukumelana kwamanzi kwefilimu, kodwa ngoba lezi zinhlelo azisetshenziselwa Uma kwenzeka ukucwiliswa emanzini isikhathi eside, futhi i-polymer isenezakhiwo zayo ezihlukile zemishini, ayithinti ukusetshenziswa kwempuphu ye-latex ephinde ihlakazeke kulezi zinhlelo.
Ngokwakhiwa kwefilimu yokugcina ye-polymer, uhlelo lohlaka olwakhiwe yizihlanganisi ezingaphili kanye neziphilayo luyakhiwa ku-mortar elungisiwe, okungukuthi, izinto ze-hydraulic zakha uhlaka oluqinile noluqinile, kanti i-latex powder ephinde ihlakazeke yakha ifilimu phakathi kwegebe kanye nobuso obuqinile. Ukuxhumeka okuguquguqukayo. Lolu hlobo lokuxhumana lungacatshangwa njengoluxhunywe ku-skeleton eqinile yiziphethu eziningi ezincane. Njengoba amandla okuthamba efilimu ye-polymer resin eyakhiwe yi-latex powder ngokuvamile ephakeme kakhulu kunezinto ze-hydraulic, amandla e-mortar ngokwawo angathuthukiswa, okungukuthi, ukuhlangana kungathuthukiswa. Njengoba ukuguquguquka nokukhubazeka kwe-polymer kuphakeme kakhulu kunokwesakhiwo esiqinile njengesamente, ukukhubazeka kwe-mortar kuyathuthukiswa, futhi umphumela wokucindezeleka kokuhlakazeka uthuthukiswa kakhulu, ngaleyo ndlela kuthuthukiswe ukumelana nokuqhekeka kwe-mortar.
Isikhathi sokuthunyelwe: Mashi-07-2023