I-admixture inomphumela omuhle ekuthuthukiseni ukusebenza kodaka olomile olomile. I-tablex evuselelayo ye-latex yenziwa nge-emulsion ekhethekile ye-polymer ngemuva kokomiswa kokufafaza. I-latex yomisiwe ye-latex yizinhlayiya ezithile eziyi-80 ~ 100mm zahlangana ndawonye. Lezi zinhlayiya zincibilika emanzini futhi zakha ukusakazwa okuzinzile zikhudlwana kunezinhlayiya zangempela ze-emulsion, ezakha ifilimu ngemuva kokuphelelwa umoya nokoma.
Izinyathelo ezihlukile zokuguqulwa zenza i-latex tablex ye-latex inezakhiwo ezihlukile njengokumelana kwamanzi, ukumelana kwe-alkali, ukumelana nesimo sezulu kanye nokuvumelana nezimo. I-latex powder esetshenzisiwe ngodaka ingathuthukisa ukumelana nomthelela, ukuqina, ukuphefumula, ukukhululwa, amandla okubumbana, ukumelana kwamandla, ukuqina kwamandla, ukunqanda kwamandla, ukuncipha kwamandla, ukuncipha kwamandla, ukuncipha kwamanzi, ukuntshontshelwa kwamandla kodaka. Lapho nje into esuselwa kusonga ingeziwe ngamanzi okuxhumana nge-latex we-towx Izinhlayiya eziqinile zifakwa kwi-gel kanye nezinhlayiya zomoya ongashadi. Njengoba ukusabela kwe-hydration kuqhubeka, imikhiqizo ye-hydration yanda, futhi izinhlayiya ze-polymer kancane kancane zihlangana kuma-pores capillary, zakha ungqimba olugcwele phasi ebusweni bejeli nakwisimo sensimbi engahlali. Izinhlayiya ezihlanganisiwe ze-polymer kancane zigcwalisa ama-pores.
I-Fleatex Tleatex Toterx ingathuthukisa izakhiwo zodaka olufana namandla aguqukayo namandla okunamathela, ngoba lingakha ifilimu le-polymer ebusweni bezinhlayiya zodaka. Kukhona ama-pores ebusweni befilimu, futhi ingaphezulu lama-pores ligcwele ngodaka, olunciphisa ukugxila kwengcindezi. Nangaphansi kwesenzo samandla angaphandle, kuzokhiqiza ukuphumula ngaphandle kokuphuka. Ngaphezu kwalokho, udaka kwakha i-skeleton eqinile ngemuva kokuthi usimende unama-hydrate, futhi i-polymer emthanjeni inomsebenzi wokuhlangana okuhambisanayo, okufana nezicubu zomzimba womuntu. Ulwelwelwesi olusungulwe yi-polymer lungaqhathaniswa namalunga nama-ligaments, ukuze uqinisekise ukuqina nokuguquguquka kwe-skeleton eqinile. ubulukhuni.
Ku-Polmer-Modified Cement Fanctar System, ifilimu eqhubekayo futhi ephelele ye-polymer ihlangana ne-Cement Paste kanye nezinhlayiyana zesihlabathi, okwenza lonke udaka futhi lwenze lonke inethiwekhi ebanzi ngokugcwalisa ama-capillaries kanye nemithambo. Ngakho-ke, ifilimu le-polymer lingadlulisela ngempumelelo ingcindezi nokungezwani okunwebekile. Ifilimu le-polymer lingavala imifantu ye-shrinkage e-polymer-dutar interface, aphuluke ama-shrinkage ukuqhekeka, futhi athuthukise amandla okubekwa uphawu kanye nokuhlangana kwamandla kadaka. Ukuba khona kwezizinda ze-polymer eziguquguqukayo kakhulu futhi eziphakeme kakhulu kuthuthukisa ukuguquguquka nokuqina kodaka, ukuhlinzeka ngokubumbana nokuziphatha okunamandla ku-skeleton eqinile. Lapho kusetshenziswa amandla angaphandle, inqubo yokusakazwa kwe-microcrack iyabambezeleka ngenxa yokuguquguquka okuthuthukile kanye nokuqina kuze kube yilapho kuqhubeka izingcindezi eziphakeme. Izizinda zePolymer zisebenza njengesithiyo ku-coalescence yama-microcracks ekungeneni kwemifantu. Ngakho-ke, i-polymer powder evuselelayo ithuthukisa ukucindezela kokuhluleka kanye nosizi lokuhlupheka kwezinto ezibonakalayo.
Isikhathi sePosi: Mar-10-2023