Indima kaiyasasazeka kwakhonai-polymerumgubokwi-putty powder: inamathele kakhulu kwaye ineempawu zoomatshini, ayinamanzi aneleyo, ayinamanzi, kwaye inokumelana kakuhle ne-alkali kunye nokuguguleka, kwaye inokuphucula ukugcinwa kwamanzi kwaye yonyuse ixesha elivulekileyo lokuqina okuphuculweyo.
1. Isiphumo sedaka esandul’ ukuxutywa
1) Phucula ulwakhiwo.
2) Ukugcinwa kwamanzi okongezelelweyo ukuphucula ukufuma kwesamente.
3) Ukwandisa ukusebenza.
4) Kuphephe ukuqhekeka kwangethuba.
2. Isiphumo sokuqinisa udaka
1) Nciphisa i-elastic modulus ye-mortar kwaye wonyuse ukuhambelana kwayo nomgangatho wesiseko.
2) Yandisa ukuguquguquka kwaye uxhathise ukuqhekeka.
3) Phucula ukumelana nokuwa komgubo.
4) Ukufunxwa ngamanzi okanye ukunciphisa ukufunxwa kwamanzi.
5) Yandisa ukunamathela kumaleko osisiseko.
Umgubo welatex ophinda uchitheke wenza i-polymer emulsion xa idibana namanzi. Ngexesha lenkqubo yokuxuba nokomisa, i-emulsion iyaphinda iphelelwe ngamanzi. Umgubo welatex usebenza kwi-putty powder, kwaye inkqubo yokwakheka kwenkqubo edibeneyo yokufunxwa kwesamente kunye nokwakheka kwefilimu ye-latex powder igqitywa ngamanyathelo amane:
①Xa umgubo welatex ophinda unyibilike uxutywe ngokulinganayo namanzi kumgubo weputty, usasazwa ube ngamasuntswana amancinci epolymer;
②Ijeli yesamente yenziwa kancinci kancinci ngokufunxwa kwesamente kokuqala, isigaba solwelo sigcwaliswe yiCa(OH)2 eyenziwe ngexesha lenkqubo yokufunxwa, kwaye amasuntswana epolymer enziwe yipowder yelatex abekwa phezu komphezulu wejeli yesamente/umxube wamasuntswana esamente angafakwanga amanzi;
③ Njengoko isamente iqhubeka nokuba namanzi, amanzi akwii-capillary pores ayancipha, kwaye ii-polymer particles zigcinwa kancinci kancinci kwi-capillary pores, zenze umaleko oqinileyo kumphezulu wejeli yesamente/umxube we-samente engafakwanga manzi kunye ne-filler;
④ Phantsi kwesenzo se-hydration reaction, i-base layer absorption kunye ne-evaporation yomphezulu, umswakama uyancitshiswa ngakumbi, kwaye ii-stacking layers ezenziweyo zihlanganiswa zibe yi-film encinci, kwaye iimveliso ze-hydration reaction zidityaniswe kunye ukwenza isakhiwo senethiwekhi epheleleyo. Inkqubo edibeneyo eyenziwe yi-samente hydration kunye ne-latex powder film formation iphucula ukumelana okunamandla kwe-putty.
Ngokwembono yokusetyenziswa okusebenzayo, amandla e-putty asetyenziswa njengomaleko wokutshintsha phakathi kwe-insulation yangaphandle kunye ne-coating yodonga lwangaphandle akufuneki abe phezulu kune-plastering mortar, kungenjalo kulula ukuvelisa ukuqhekeka. Kwinkqubo yonke ye-insulation, ukuguquguquka kwe-putty kufuneka kube phezulu kune-substrate. Ngale ndlela, i-putty inokuziqhelanisa ngcono ne-deformation ye-substrate kwaye ikhusele i-deformation yayo phantsi kwesenzo sezinto zangaphandle zendalo, inciphise uxinzelelo, kwaye inciphise amathuba okuqhekeka nokuqhekeka kwe-coating.
Ixesha lokuthumela: Okthobha-27-2022