Ulwazi Lokuphepha Lwe-Redispersible Polymer Powder

Idethi yokuthunyelwe:24,JAN,2022

I-powde ye-polymer ehlakazeka kabusharngokuvamile isetshenziswa odongeni lwangaphandle lwesakhiwo nge-putty powder noma ezinye izingxube zikasimende, ngokuvamile ezinosimende nezinye izingxube ngaphakathi, kanye nempushana ye-latex exutshwe ne-putty powder ukupenda ngaphandle, inikeza abantu uhlobo umuzwa, futhi ingathuthukisa ngokugcwele amandla e-adsorption of the mortar, ukuze impilo yesevisi yodonga lwangaphandle ibe yinde.

Umsebenzi wayo uboniswa kuqala ekuthuthukiseni ukunamathela kodaka, ngoba i-latex powder izongena ku-samente futhi igcwalise umswakama, ngakho-ke ikhono lokunamathela lingcono. Izikhathi eziningi siphathwa yikhanda ngenxa yokuthi usimende awukwazi ukuhlangana ngokhuni nefiber nezinye izinto zokusetshenziswa, kodwa nge- i-polymer powder ehlakazeka kabusha, akudingeki sikhathazeke ngakho konke. Sonke siyazi ukuthi ukumelana nokugoba kukasimende kubi kakhulu ngemva kokuqina, futhi ukungezwa kwe-latex powder kuzothuthukisa ukuqina kwayo, ukuze kukwazi ukumelana nokucindezela okuphezulu kwe-deformation. Ngisho ne-microstructure kakhonkolo kasimende izoshintshwa yiyo. Izovimbela ukumuncwa kwamanzi kwesakhiwo sangaphakathi futhi ivimbele amanzi ukuthi angangeni. Khona-ke ikhono le-anti-permeability lodonga lwangaphandle nalo liyathuthukiswa. Asikho isidingo sokukhathazeka ngokugeleza kwamanzi endlini lapho lina. Phezulu.

I-polymer powder ehlakazeka kabushayengezwe kusimende, ukuze izinhlayiya zikasimende ezinhle kanye nothuli kuhlanganiswe ngokuqinile, ngakho-ke umthamo wokuthwala umthwalo wodaka uthuthukiswa ngokwemvelo, futhi ukumelana nokugqoka kuba namandla. Okwezindonga zangaphandle , Ngeke adonse amanzi kalula, ukuqhekeka okomile, ukuguqulwa kuyindinganiso yekhwalithi efanelekayo. Ngaphansi kwezimo ezivamile, izindonga ezilula zekhonkrithi zangaphandle zivame ukuba nempilo yesevisi emfushane, futhi kulula ukuqhekeka ngemva kweminyaka embalwa. Ngakho-ke, upende we-latex uvame ukungezwa enqubweni yokwakha eminyakeni yamuva ukuze kwandiswe impilo yayo yesevisi futhi kuqinisekiswe impilo yabahlali. Ukuphepha komuntu siqu kanye nempahla.

Ngakho, lapho kungabai-polymer powder ehlakazeka kabushakusetshenziswe?I-polymer powder ehlakazeka kabushaingasetshenziswa kulezi zindawo ezilandelayo: isisekelo sikasimende, i-gypsum-based, i-bonding mortar, i-plastering mortar, udaka olungangeni manzi, udaka oluvimbela ukuqhekeka, udaka lokuhlobisa, udaka lukasimende, udaka lokukhonkolo, udaka lwamatshe, ukulungisa ukhonkolo kanye nokulungisa I-Mortar, ukuhlanganisa udaka, udaka lwaphansi (udaka lukasimende oluzilinganisa ngokwalo longqimba olungezansi, ungqimba olungaphezulu, njll.), ukhonkolo owomile, ungqimba olulinganisa umhlabathi, ukubopha amathayela, okunamathelayo kokwakha, i-caulking agent, i-jointing agent, i-bonding plaster, i-stucco Gypsum, i-putty yangaphakathi yodonga, i-putty yodonga lwangaphandle, udaka lwe-diatom, okokungangeni manzi, okokuhlanganisa okuhlukahlukene,i-polymer powder ehlakazeka kabushaingasetshenziswa futhi njengama-plasticizers, ama-tougheners, kanye

ama-thickeners wezinto ezingaphili ze-hydraulic ezifana usimende negypsum, i-Binder, i-ejenti yokwakha ifilimu, i-ejenti yokuvimbela amanzi.

I-powde ye-polymer ehlakazeka kabusharinezici ezilandelayo:

1. Umkhiqizo wempushana we-latex ohlakazeka kabusha uyimpushana encibilika kabusha encibilika emanzini, i-copolymer ye-ethylene ne-vinyl acetate, ene-polyvinyl alcohol njenge-colloid evikelayo.

2. I-VAE redispersible latex powder inezinto zokwenza ifilimu. Isixazululo se-aqueous esingu-50% sizokwakha i-emulsion, ezokwenza ifilimu efana nepulasitiki ngemva kokubekwa engilazini amahora angu-24.

3. Ifilimu eyakhiwe inokuguquguquka okuthile nokumelana namanzi. Ingafinyelela amazinga kazwelonke.

4. I-latex powder ehlakazeka kabusha inokusebenza okuphezulu: inekhono eliphezulu lokubopha, ukusebenza okuyingqayizivele nokusebenza okuvelele okungangeni manzi, amandla okubopha okuhle, okunikeza udaka ukumelana okuhle kakhulu kwe-alkali, futhi ingathuthukisa ukunamathela namandla okuguquguquka kodaka , Ngaphezu kwepulasitiki. , ukumelana nokugqoka nokusebenza, inokuguquguquka okunamandla odakeni olulwa nokuqhekeka.