Impushana ye-latex ehlakazeka kabusha
Impushana ye-putty yodonga lwangaphakathi nangaphandle, okunamathelisa amathayela, i-ejenti yokukhomba, i-ejenti yokusebenzelana kwempushana eyomile, udaka lwangaphandle olushisayo olufakwa ezindongeni, udaka oluzilinganisa, udaka lokulungisa, udaka lokuhlobisa, udaka olungangeni manzi lwangaphandle olushisayo oluxutshwe nodaka.Odakeni, okokuthuthukisa ukuqina, imodulus enwebekayo ephezulu kanye nobunye ubuthakathaka bodaka lukasimende lwendabuko, kanye nokunikeza udaka lukasimende ukuguquguquka okungcono namandla ebhondi eqinile, ukuze limelane futhi libambezele ukukhiqizwa kokuqhekeka kodaka lukasimende.Njengoba i-polymer kanye nodaka lwakha isakhiwo senethiwekhi esingena ngaphakathi, ifilimu ye-polymer eqhubekayo yenziwa ezimbotsheni, eqinisa ukubopha phakathi kwama-aggregates futhi ivimbele ezinye izimbotshana odakeni, ngakho udaka oluguquliwe ngemuva kokuqina lungcono kunodaka lukasimende.Kukhona ukuthuthuka okukhulu.
Okokuqala: Indima ye-latex powder ehlakazeka kabusha ku-putty ikakhulukazi yizici ezilandelayo
1. Thuthukisa ukunamathela kanye nezakhiwo zemishini ye-putty.I-latex powder e-redispersible iyi-adhesive powder eyenziwe nge-emulsion ekhethekile (i-polymer ephezulu yamangqamuzana) ngemva kokumiswa kwesifutho.Le powder ingaphinde ihlakazeke ngokushesha ibe yi-emulsion ngemva kokuxhumana namanzi, futhi inezakhiwo ezifanayo njenge-emulsion yokuqala, okungukuthi, ifilimu ingakhiwa ngemva kokuba amanzi eqhuma.Le filimu inokuguquguquka okuphezulu, ukumelana nesimo sezulu esiphezulu kanye nokumelana nokunamathela okuhlukahlukene okuphezulu kuma-substrates.Ngaphezu kwalokho, i-hydrophobic latex powder ingenza udaka lungangeni manzi kakhulu.
2. Thuthukisa ukuhlangana kwe-putty, ukumelana okuhle kakhulu, ukumelana ne-alkali, ukumelana nokugqoka, nokuthuthukisa amandla okuguquguquka.
3. Thuthukisa ukungangeni kwamanzi kanye nokungena kwe-putty.
4. Thuthukisa ukugcinwa kwamanzi kwe-putty, ukwandisa isikhathi esivulekile, futhi uthuthukise ukusebenza
5. Thuthukisa ukumelana komthelela we-putty futhi uthuthukise ukuqina kwe-putty.
Okwesibili: Indima ye-latex powder ehlakazeka kabusha odakeni ikakhulukazi yizici ezilandelayo
1. Thuthukisa amandla acindezelayo namandla aguquguqukayo odaka.
2. Ukwengezwa kwe-latex powder kwandisa izinga lokwelulwa kodaka, ngaleyo ndlela kuthuthukisa ukuqina komthelela wodaka, futhi kunikeza udaka ngomphumela omuhle wokusabalalisa ukucindezeleka.
3. Thuthukisa ukusebenza kwesibopho sodaka.Indlela yokubopha isekelwe ekukhangisweni nasekusakazeni kwama-macromolecule endaweni enamathelayo.Ngesikhathi esifanayo, i-powder yenjoloba ine-permeability ethile futhi ingena ngokugcwele ebusweni bezinto eziyisisekelo nge-cellulose ether, ukuze izakhiwo ezingaphezulu zesisekelo kanye ne-plaster entsha zisondele, ngaleyo ndlela ithuthukise i-Adsorption ikhulise kakhulu ukusebenza kwayo.
4. Yehlisa i-elastic modulus of mortar, uthuthukise ikhono lokuguquguquka futhi unciphise umkhuba wokuqhekeka.
5. Thuthukisa ukumelana nokugqokwa kodaka.Ukuthuthukiswa kokumelana nokugqoka ikakhulukazi ngenxa yokuba khona kwenani elithile leglue ebusweni bodaka.I-glue powder isebenza njengesibopho, futhi isakhiwo se-omentum esakhiwe i-glue powder singadlula emigodini kanye nokuqhekeka odongeni lukasimende.Ithuthukisa isibopho phakathi kwezinto eziyisisekelo kanye nemikhiqizo kasimende ye-hydration, ngaleyo ndlela ikhulise ukumelana nokugqoka.
6. Nikeza udaka ukumelana okuhle kakhulu kwe-alkali.
Okuthathu: Indima yempushana ye-latex ehlakazeka kabusha kuma-adhesives we-tile ngokuyinhloko yizici ezilandelayo
1. Njengoba inani likasimende likhula, amandla okuqala okunamathela kwe-tile ayanda, futhi ngesikhathi esifanayo, amandla okunamathela aqinile ngemva kokucwiliswa emanzini kanye namandla okunamathela okuqinile ngemva kokuguga okushisayo nawo ayanda.Inani likasimende kufanele libe ngaphezu kwama-35%.
2. Ngokukhula kwenani lempushana ye-latex ehlakazeka kabusha, amandla esibopho esiqinile sokunamathela kuthayela ngemva kokucwiliswa emanzini namandla esibopho esiqinile ngemva kokuguga kokushisa akhuphuka ngokufanele, kodwa ukwanda kwamandla ebhondi eqinile ngemva kokuguga kokushisa kuphansi kakhulu.sobala.
3. Ngokukhula kwenani le-cellulose ether, amandla okunamathela okuqinile okunamathela kuthayela ngemva kokuguga okushisayo ayanda, futhi amandla okunamathela aqinile ngemva kokucwiliswa emanzini ayanda kuqala bese ehla.Umphumela ubangcono kakhulu uma okuqukethwe kwe-cellulose ether kucishe kube ngu-0.3%.
Ngakho-ke, lapho sisebenzisa i-latex powder ephindwe kabusha, kufanele sinake inani elisetshenzisiwe, ukuze sikwazi ukudlala indima yalo ngempela.
Isikhathi sokuthumela: Mar-28-2023