Impuphu ye-emulsion ekugcineni yakha ifilimu ye-polymer, futhi uhlelo olwakhiwe ngezakhiwo ze-inorganic kanye ne-organic binder luyakhiwa ku-mortar elungisiwe, okungukuthi, uhlaka oluqinile noluqinile olwakhiwe ngezinto ze-hydraulic, kanye nefilimu eyakhiwe yi-latex powder ephinde ihlakazeke ku-gap kanye ne-solid surface. Amandla okubamba kanye nokuhlangana kwefilimu ye-polymer resin eyakhiwe yi-latex powder kuyathuthukiswa. Ngenxa yokuguquguquka kwe-polymer, ikhono lokuguquguquka liphezulu kakhulu kunelesakhiwo esiqinile samatshe esimende, ukusebenza kokuguquguquka kwe-mortar kuyathuthuka, futhi umphumela wokucindezeleka kokuhlakazeka uthuthukiswa kakhulu, ngaleyo ndlela kuthuthukiswe ukumelana kokuqhekeka kwe-mortar. Ngokwanda kokuqukethwe kwe-latex powder ephinde ihlakazeke, lonke uhlelo luthuthukela kupulasitiki. Endabeni yokuqukethwe okuphezulu kwe-latex powder, isigaba se-polymer ku-mortar elungisiwe sidlula kancane isigaba somkhiqizo we-hydration engaphili, futhi i-mortar izoshintsha ikhwalithi futhi ibe yi-elastomer, kuyilapho umkhiqizo we-hydration we-samente uba "ukugcwalisa".
Amandla okuthamba, ukuqina, ukuguquguquka kanye nokuvaleka kodaka oluguqulwe yi-latex powder ephinde ihlakazeke konke kuthuthukisiwe. Ukuhlanganiswa kwe-latex powder ephinde ihlakazeke kuvumela ifilimu ye-polymer (ifilimu ye-latex) ukuthi yakheke futhi yakhe ingxenye yodonga lwe-pore, ngaleyo ndlela ivale isakhiwo se-porosity ephezulu yodaka. I-latex membrane inendlela yokuzelula eveza ukucindezeleka lapho inamathele khona kudaka. Ngalezi zindlela zangaphakathi, udaka lugcinwa luphelele, ngaleyo ndlela lwandise amandla ahlangene odaka. Ukuba khona kwama-polymer aguquguqukayo kakhulu futhi anwebeka kakhulu kuthuthukisa ukuguquguquka kanye nokuqina kodaka. Indlela yokwanda kokucindezeleka kokukhiqiza kanye namandla okwehluleka yilena elandelayo: lapho kusetshenziswa amandla, ama-microcrack ayabambezeleka kuze kube yilapho kufinyelelwa ukucindezeleka okuphezulu ngenxa yokuguquguquka okuthuthukisiwe kanye nokuqina. Ngaphezu kwalokho, izindawo ze-polymer ezihlanganisiwe nazo zivimbela ukuhlangana kwama-microcrack abe yimifantu engena ngaphakathi. Ngakho-ke, i-polymer powder ephinde ihlakazeke ithuthukisa ukucindezeleka kokwehluleka kanye nokucindezeleka kokwehluleka kwezinto.
Ifilimu ye-polymer esesimendeni esilungisiwe se-polymer inomthelela obaluleke kakhulu ekuqiniseni isimende. Impuphu ye-latex ephinde ihlakazeke esatshalaliswa esibonakalayo idlala enye indima ebalulekile ngemuva kokuhlakazeka nokwenza ifilimu, okuwukwandisa ukunamathela ezintweni ezithintekile. Esakhiweni esincane se-powder polymer modified tile bonding mortar kanye nesibonisi sethayela, ifilimu eyakhiwe yi-polymer yakha ibhuloho phakathi kwamathayela ane-vitrified anomuncwa wamanzi ophansi kakhulu kanye ne-cement mortar matrix. Indawo yokuxhumana phakathi kwezinto ezimbili ezingafani iyindawo enobungozi obukhulu bokwakheka kwemifantu yokuncibilika futhi iholele ekulahlekelweni kokuhlangana. Ngakho-ke, ikhono lamafilimu e-latex lokwelapha imifantu yokuncibilika libaluleke kakhulu kuma-adhesive ethayela.
Isikhathi sokuthunyelwe: Mashi-06-2023