I-polymer powder ehlakazeka kabushaiyisengezo esiyinhloko sempushana eyomile exutshwe ngodaka njengosimende noma i-gypsum-based.
I-latex powder ehlakazeka kabusha iyi-emulsion ye-polymer eyomiswa futhi ihlanganiswe kusukela ku-2um yokuqala ukuze yakhe izinhlayiya eziyindilinga ezingama-80 ~ 120um. Ngenxa yokuthi izindawo ezingaphezulu zezinhlayiya zimbozwe ngempushana engaphili, ekwazi ukumelana nesakhiwo esiqinile, sithola izimpushana ze-polymer ezomile. Zithululwa kalula noma zifakwe emasakeni ukuze zigcinwe ezindaweni zokugcina impahla. Uma impushana ixubene namanzi, usimende noma udaka olusekelwe ku-gypsum, ingaphinde ihlakazwe, futhi izinhlayiya eziyisisekelo (2um) kuyo zizophinde zakheke esimweni esilingana ne-latex yasekuqaleni, ngakho-ke ibizwa ngokuthi i-latex powder ephindwe kabusha.
Ine-redispersibility enhle, iphinde ihlakazeke ibe yi-emulsion lapho ithintana namanzi, futhi inezindawo zamakhemikhali ezifanayo ncamashi ne-emulsion yasekuqaleni. Ngokungeza impushana ye-polymer ehlakazeka kabusha kusimende-based noma i-gypsum-based dry powder exutshwe ngodaka, izakhiwo ezihlukahlukene zodaka zingathuthukiswa,
Inkambu yokwakha esetshenzisiwe
1 Uhlelo Lokushisisa Odongeni Lwangaphandle
Ingaqinisekisa ukunamathela okuhle phakathi kodaka nebhodi le-polystyrene namanye ama-substrates, futhi akulula ukugoba nokuwa. Ukuvumelana nezimo okuthuthukisiwe, ukumelana nomthelela namandla okuqhekeka athuthukisiwe.
2 ingcina yethayela
Inikeza ibhondi yamandla aphezulu kudaka, inikeze udaka ukuguquguquka okwanele ukuze kucindezele ama-coefficients ahlukene okunweba okushisayo kwe-substrate nethayela.
3 uhlaka
Impushana ye-polymer ehlakazeka kabusha yenza udaka lungangeni futhi luvimbele ukungena kwamanzi. Ngesikhathi esifanayo, inokunamathela okuhle ngomphetho we-tile, ukuncipha okuphansi nokuguquguquka.
4 udaka esibonakalayo
Ingavala kangcono igebe le-substrate, inciphise ukumuncwa kwamanzi odongeni, ithuthukise amandla angaphezulu e-substrate, futhi iqinisekise ukunamathela kodaka.
5 Udaka lokuzilinganisa phansi
Thuthukisa ukumelana nokuqhekeka kokuzilinganisa, khulisa amandla okubopha ngongqimba olungezansi, uthuthukise ukuhlangana, ukumelana nokuqhekeka namandla okugoba odaka.
6 udaka olungangeni manzi
I-latex powder ehlakazeka kabusha ingathuthukisa ukusebenza kahle; ngaphezu kwalokho ukwandisa ukugcinwa kwamanzi; ngcono usimende hydration; nciphisa i-elastic modulus yodaka futhi uthuthukise ukuhambisana nesendlalelo sesisekelo. Thuthukisa ukuminyana kodaka, khulisa ukuguquguquka, ukumelana nokuqhekeka noma ube nekhono lokuvala ibhuloho.
7 ukulungisa udaka
Qinisekisa ukunamathela kodaka futhi ukwandise ukuqina kwendawo elungisiwe. Ukwehlisa i-elastic modulus kuyenza imelane kakhulu nobunzima.
8 phuthi
Yehlisa i-modulus enwebekayo yodaka, uthuthukise ukuhambisana nesendlalelo sesisekelo, ukwandise ukuguquguquka, ukuphikisana nokuqhekeka, uthuthukise ukumelana nokuwa kwe-powder, ukuze i-putty ibe nokungafinyeleli okuthile nokumelana nomswakama, okunganciphisa umonakalo wokucindezeleka kwezinga lokushisa. .
Isikhathi sokuthumela: Oct-25-2022