I-latex evuselelayo ye-latex kanye nezinye izinamathiseli ze-inorganic (ezifana nesimende, i-lime evuthayo, i-gypsum, ubumba, njll. Lapho udaka olomile lwe-powder lungezwa emanzini bese lushukumisa, ngaphansi kwesenzo se-colrophilic evikela i-colloid kanye ne-meherx shear Force, izinhlayiya ze-latex ze-latex zingasatshalaliswa ngokushesha emanzini, anele ukwenza i-latex evuselelayo ye-latex powder kwifilimu. Ukwakheka kwe-awder yerabha kunomphumela ohlukile kwizakhiwo ze-bheological zodaka kanye nezakhiwo ezahlukene zokwakha udaka lapho kusatshalaliswa khona, i-viscosities ye-latex yomoya, i-viscosities ye-latex ye-latex kanye nezinye izithasiselo zenza imiphumela yokwanda kwe-fluodity, ikhula Thixotropy, kanye nokwanda kokuvuka.
Ngokuvamile kuzwakala ukuthi inqubo ye-latex evuselelayo ye-latex ye-latex ukwenza ngcono ukusebenziseka kodaka olusha: ubudlelwane be-latex powder kanye nokuvikela i-conloid lapho kukhulisa ubumbano lwe-slurry futhi kuthuthukisa ukubumbana kodaka lokwakha. Ngemuva kolimi olusanda kuxutshwa oluqukethe i-latex powder dispersion kwakhiwa, ngokumuncwa kwamanzi ngobuso besisekelo, ukusetshenziswa kancane kancane, ukuguquguquka kancane kancane, futhi kancane kancane kuhlale, futhi ekugcineni kuhlanganiswe ifilimu elihlanganisa. Inqubo yokuhlelwa kwefilimu ye-polymer ihlukaniswe izigaba ezintathu. Esigabeni sokuqala, izinhlayiya ze-polymer zihamba ngokukhululeka ngesimo sokunyakaza kwe-browrowian emulsion yokuqala. Njengoba amanzi ehwamuka, ukunyakaza kwezinhlayiya ngokwemvelo ngokwengeziwe futhi kukhawulelwe ngokwengeziwe, kanye nengxabano yokuzijabulisa phakathi kwamanzi nomoya kubaphoqa ukuthi bahambisane kancane kancane. Esigabeni sesibili, lapho izinhlayiya zihlangana nabanye, amanzi kunethiwekhi evele ngamashubhu we-capillary, futhi ukungezwani okuphezulu kwe-capillary kusebenza ebusweni bezinhlayiya kubangela ukubandlulula amabala ama-latex ukuba ahlanze ndawonye, futhi ifilimu ligcwele kakhulu. Okwesithathu, isigaba sokugcina sivumela ukuguquguquka (kwesinye isikhathi okubizwa ngokuthi ukuzinamathela) kwama-molecule e-polymer ukwakha ifilimu eqhubekayo eqhubekayo. Ngesikhathi sokwakhiwa kwefilimu, izinhlayiya ze-latex ze-latex ezihlalisiwe zokwehlukanisa esigabeni esisha sefilimu ngengcindezi ephezulu. Ngokusobala, ukuze unike amandla i-polymer podmer evuselelekayo ukwakha ifilimu olimini olukhuni, kuyadingeka ukuqinisekisa ukuthi amazinga okushisa aphansi wefilimu (i-MFT) aphansi kunokushisa kodaka.
Ama-colloids kumele ahlukaniswe ngohlelo lwe-polymer membrane. Lokhu akuyona inkinga ohlelweni luka-Alkaline Cement Jaumer, ngoba luzotholwa yi-alkali ekhiqizwe yi-hydration kasimende, futhi ngasikhathi sinye, ngaphandle kwe-fletrophilic ye-colloid ye-quartz izosebenza kancane kancane ngaphansi kwezimo ezomile, kodwa futhi ngaphansi kwezimo zokucwiliswa kwamanzi okude kuphela.
Ngokwakheka kokugcina kwefilimu ye-polymer, kwakhiwa uhlelo lwe-Inorganic ne-Organic Binder ngodaka lwe-curt, okungukuthi, ithambo le-brittle kanye nelukhuni elihlanganiswe nezinto zokwakha i-hydraulic, kanye nefilimu eyakhiwe ngofulawa we-latex evuselelayo. inethiwekhi eguquguqukayo. Amandla asheshayo kanye nokuhlangana kwefilimu ye-polymer okwakhiwa yi-latex powder iyathuthukiswa. Ngenxa yokuguquguquka kwe-polymer, ikhono lokukhubazeka liphakeme kakhulu kunaleso sotshe lwamatshe, ukusebenza kodaka kuphunyukisiwe, futhi umphumela wokuxineka kwengcindezi ngcono kakhulu, ngaleyo ndlela ethuthukisa ukumelana nodaka kodaka.
Ngokukhuphuka kokuqukethwe kwe-latex evuselelayo ye-latex powder, lonke uhlelo lukhula lubheke epulasitiki. Esimweni sokuqukethwe kwe-latex ephezulu ye-taghtx, isigaba se-polymer ku-cuter udaka kancane kancane sidlula esigabeni somkhiqizo we-inorganic hydration, futhi udaka uzoba ngoshintsho olufanelekile futhi abe ngumkhiqizo we-hydrome, ngenkathi umkhiqizo we-hydrate we-clement eba "umsizi we-hydration uba" umxhwele "u-cydration" uba ngumuntu ongumlingisi. ". Amandla ashubile, ukuguquguquka, ukuvumelana nezimo kanye nokwelulama kombuzo okuguqulwe yi-redisperiblet latex powder avumelanise i-porems fily, ulwela i-latex membrane enendlela yokuzilolonga. Ngamandla Lawa mandla angaphakathi, udaka ugcinwa uwonke, ngaleyo ndlela wandisa amandla abumbene owesimende. Ukuba khona kwama-polmers aguquguqukayo kuthuthukisa ukuguquguquka nokuqina kodaka. Lapho kutholakala amandla aphezulu ngenxa yokuguquguquka okuthuthukile kanye nokuqina. Ngaphezu kwalokho, i-InterWoven Izizinda ze-polymer ziphinde zivimbele ama-coalescence ama-microcracks abe yimifantu engenisene
Ifilimu le-polymer ePolymer Modified ngodaka linomphumela obaluleke kakhulu ku-rtuning wodaka. I-latex ye-latex evuselelayo esatshalaliswe esibonakalayo idlala enye indima ebalulekile ngemuva kokuhlakazeka kanye nokwakhiwa kwamafilimu, okuwukukhulisa ukunamathela kwezinto ezithintwayo. Ngokusebenzisa i-powder polymer modified tile bonding usimende kanye ne-tile isikhombimsebenzisi, ifilimu eyakhiwa i-polymer yakha ibhuloho phakathi kwamathayili aphansi anokufakwa kwamanzi okuphansi okunama-matrix aphansi kakhulu. Indawo yokuxhumana phakathi kwezinto ezimbili ezingafani nengozi enkulu yendawo enobungozi obukhulu bokuqhekeka okuhlaselwayo ukuze kwakhiwe futhi kuholele ekulahlekelweni kokubumbana. Ngakho-ke, ikhono lamafilimu we-latex ukuphulukisa ukuqhekeka kwe-shrinkage ukuqhekeka kubaluleke kakhulu kuma-tile anamathela.
Isikhathi sePosi: Feb-14-2025