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.
Indima ye-latex powder ehlakazeka kabusha ku-putty ikakhulukazi kulezi zici 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, ingakha ifilimu ngemva kokuphuma kwamanzi.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.
2. Indima yempushana ye-latex ehlakazeka kabusha ekunamathiseleni ithayela ikakhulukazi kulezi zici ezilandelayo:
1. Njengoba inani le-samente landa, amandla okuqala okunamathela kwe-tile ayanda.Ngesikhathi esifanayo, amandla okunamathela aqinile ngemva kokucwiliswa emanzini kanye namandla okunamathela aqinile ngemva kokuguga kokushisa nawo ayanda.Inani likasimende kufanele libe ngaphezu kwama-35%.
2. Ngokukhula kwenani lempushana ye-latex ehlakazeka kabusha, amandla ebhondi eqinile ngemva kokucwiliswa emanzini kanye namandla esibopho esiqinile ngemva kokuguga okushisayo kwe-adhesive enamathelayo akhuphuka ngokufanele, kodwa amandla esibopho esiqinile ngemva kokuguga okushisayo akhuphuka ngokusobala.
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%.
Uma usebenzisa i-latex powder ephinda ihlakazeka, kufanele sinake inani lokusetshenziswa, ukuze ikwazi ukudlala indima yayo ngempela.
Isikhathi sokuthumela: Jun-05-2023