Indima yeezihlakazeka kabushai-polymerimpushanaku-putty powder: inokunamathela okuqinile kanye nezakhiwo zemishini, ukungangeni kwamanzi okuvelele, ukungena kwamanzi, nokumelana ne-alkali okuhle kakhulu nokumelana nokugqoka, futhi ingathuthukisa ukugcinwa kwamanzi futhi yandise Isikhathi Esivulekile sokuqina okuthuthukisiwe.
1. Umphumela wodaka olusanda kuxutshwa
1) Thuthukisa ukwakhiwa.
I-2) Ukugcinwa kwamanzi okwengeziwe ukuze kuthuthukiswe ukugeleza kukasimende.
3) Khulisa ukusebenza.
4) Gwema ukuqhekeka kusenesikhathi.
2. Umphumela wodaka oluqinile
I-1) Yehlisa i-modulus enwebekayo yodaka futhi ukhulise ukuhambisana nesendlalelo sesisekelo.
2) Khulisa ukuguquguquka futhi umelane nokuqhekeka.
3) Thuthukisa ukumelana kokuwa kwempushana.
I-4) I-Hydrophobic noma ukunciphisa ukumuncwa kwamanzi.
I-5) Khulisa ukunamathela kwesendlalelo sesisekelo.
I-latex powder ehlakazeka kabusha yakha i-emulsion ye-polymer lapho ithintana namanzi. Phakathi nenqubo yokuxuba nokomisa, i-emulsion iphinda iphelelwe amanzi. I-latex powder isebenza ku-putty powder, futhi inqubo yokwakheka kwesistimu eyinhlanganisela ye-cement hydration kanye nokwakheka kwefilimu ye-latex powder iqedwa ngezinyathelo ezine:
①Uma impushana ye-latex ehlakazeka kabusha ixutshwa ngokulinganayo namanzi kumpushana oyimpuphu, ihlakazeka ibe yizinhlayiya ze-polymer ezinhle;
②Ijeli ye-cement kwakheka kancane kancane ngokusebenzisa ukugeleza kokuqala kukasimende, isigaba se-liquid sigcwele i-Ca (OH) 2 eyakhiwe ngesikhathi senqubo ye-hydration, futhi izinhlayiya ze-polymer ezakhiwe yi-latex powder zifakwa phezu kwejeli ye-cement / ingxube yezinhlayiya zikasimende ezingenamanzi;
③ Njengoba usimende uqhubeka u-hydrated, amanzi asezimbotsheni ze-capillary ayancipha, futhi izinhlayiya ze-polymer ziboshwe kancane kancane kuma-capillary pores, zakha ungqimba oluhlanganiswe ngokuqinile ebusweni bejeli likasimende / ingxube yezinhlayiya zikasimende ezingenamanzi kanye nokugcwalisa;
④ Ngaphansi kwesenzo sokusabela kwe-hydration, ukumuncwa kongqimba oluyisisekelo kanye nokuhwamuka kwendawo, umswakama uyancipha ngokwengeziwe, futhi izendlalelo ezinqwabelene ezakhiwe zihlanganiswa zibe ifilimu elincanyana, futhi imikhiqizo yokusabela kwe-hydration ihlanganiswe ndawonye ukuze yakhe isakhiwo senethiwekhi esiphelele. Uhlelo oluyinhlanganisela olwakhiwe yi-cement hydration kanye nokwakheka kwefilimu ye-latex powder kuthuthukisa ukumelana okuguquguqukayo kokuqhekeka kwe-putty.
Ngokombono wohlelo lokusebenza olusebenzayo, amandla e-putty asetshenziswa njengesendlalelo soguquko phakathi kwe-insulation yangaphandle kanye nokumbozwa kodonga lwangaphandle akufanele kube ngaphezu kodaka lokunamathisela, ngaphandle kwalokho kulula ukukhiqiza ukuqhekeka. Kuwo wonke uhlelo lwe-insulation, ukuguquguquka kwe-putty kufanele kube phezulu kunokwe-substrate. Ngale ndlela, i-putty ingakwazi ukuzivumelanisa kangcono ne-deformation ye-substrate futhi ivikele ukuguqulwa kwayo ngaphansi kwesenzo sezinto zangaphandle zemvelo, ikhulule ukugxila ekucindezelekeni, futhi inciphise amathuba okuqhekeka nokuxebuka kwe-coating.
Isikhathi sokuthumela: Oct-27-2022