Ukusetshenziswa kweredispersible latex powder (RDP) ekubunjweni kwe-putty powder kudonse ukunakwa embonini yezokwakha kanye nezinto zokwakha ngenxa yomthelela wayo obalulekile ezakhiweni zomkhiqizo wokugcina. Izimpushana ze-latex ezihlakazeka kabusha empeleni ziyizimpushana ze-polymer ezikwazi ukwenza ama-disperssions uma exutshwe namanzi. Lokhu kuhlakazeka kunikeza izici ezihlukahlukene ezizuzisayo ku-putty, okuhlanganisa ukunamathela okuthuthukisiwe, ukuguquguquka, ukumelana namanzi, futhi, ngokubaluleke kakhulu, inqubo yokuqina.
Ukuqonda i-Putty Powder kanye ne-Redispersible Latex Powder
I-Putty powder iwumkhiqizo osuselwe kumpushana osetshenziswa ngokuyinhloko ukugcwalisa izikhala, ukushelela, nokulungisa ama-substrates okudweba noma okunye ukuqedwa. Ukwakheka okuyisisekelo kwempushana ephutha ngokuvamile kuhlanganisa okuhlanganisayo (isb, usimende, igypsum), izigcwalisi (isb, i-talc, i-calcium carbonate), nezithasiselo (isb., ama-retarders, ama-accelerator) alawula izici zayo zokusebenza. Uma ihlanganiswe namanzi, i-putty powder yenza unamathisele oqina ngokuhamba kwesikhathi, okwenza indawo ehlala njalo, ebushelelezi.
I-Redispersible latex powder (RDP) iyimpushana ye-polymer encibilika emanzini eyenziwe ngokufafaza okuhlakazeka okunamanzi kwe-polymer emulsions. Ama-polymers ajwayelekile asetshenziswa ku-RDP afaka i-styrene-butadiene (SBR), ama-acrylics, ne-vinyl acetate-ethylene (VAE). Ukwengezwa kwe-RDP ku-putty powder kuthuthukisa izakhiwo zomzimba nemishini ye-putty ephulukisiwe, ngokuyinhloko ngokuthuthukisa amandla ebhondi, ukuguquguquka, nokumelana nokuqhekeka.
Ukuqina kwe-Putty Powder
Ukuqina kwe-putty powder kwenzeka njengoba izingxenye ze-binder (njengosimende noma i-gypsum) zithola ukusabela kwamakhemikhali ngamanzi. Inqubo ngokuvamile ibizwa ngokuthi i-hydration (ye-putty-based putties) noma i-crystallization (kuma-putty asekelwe ku-gypsum), futhi iholela ekwakhekeni kwezigaba eziqinile eziqina ngokuhamba kwesikhathi. Kodwa-ke, le nqubo ingathonywa uhla lwezinto, njengokukhona kwezithasiselo, umswakama, izinga lokushisa, kanye nokwakheka kwe-putty ngokwayo.
Iqhaza le-RDP kule nqubo yokuqina ukuthuthukisa ukubopha phakathi kwezinhlayiya, ukuthuthukisa ukuguquguquka, nokulawula ukuhwamuka kwamanzi. I-RDP isebenza njengesibophezelo okuthi, uma isihlakazwe kabusha emanzini, sakhe inethiwekhi ye-polymeric ngaphakathi kwe-putty. Le nethiwekhi isiza ukubamba ama-molecule amanzi isikhathi eside, inciphisa izinga lokuhwamuka futhi ngaleyo ndlela yandise isikhathi sokusebenza se-putty. Ukwengeza, inethiwekhi ye-polymer isiza ukwakha inqwaba eqinile, ehlangene kakhudlwana ngokuthuthukisa ukusebenzisana kwezinhlayiyana.
Umthelela Wempushana Ye-Latex Ehlakazeka Kabusha Enqubweni Yokuqina
Ukusebenza Okuthuthukisiwe Nesikhathi Sokuvula:
Ukufakwa kwe-RDP ekwenziweni kwe-putty kuthuthukisa ukusebenza ngokunciphisa inqubo yokomisa, kunikeze isikhathi esengeziwe sokufaka isicelo. Lokhu kunenzuzo ikakhulukazi kumaphrojekthi amakhulu lapho i-putty idinga ukusabalala ezindaweni ezibanzi ngaphambi kokuthi ibekwe.
Ukwandisa Ukuvumelana nezimo:
Omunye wemiphumela ebalulekile yokwengeza i-RDP ukuthuthukisa ukuguquguquka. Nakuba i-putty yendabuko ivame ukuba nzima lapho iqina, i-RDP inikela ezintweni ezilula eselaphekayo, enciphisa amathuba okuqhekeka ngaphansi kwengcindezi noma ukushintshashintsha kwezinga lokushisa.
Amandla Nokuqina:
Ama-putty ashintshwe i-RDP abonisa amandla acindezelayo aphezulu kanye nokumelana nokuguga uma kuqhathaniswa nokwakheka okungashintshiwe. Lokhu kungenxa yokwakhiwa kwe-matrix ye-polymer eqinisa ubuqotho besakhiwo se-putty eqinile.
Ukunciphisa Ukuncipha:
Inethiwekhi ye-polymeric eyenziwe yimpushana ye-latex ehlakazeka kabusha nayo iyasiza ekwehliseni ukuncipha ngesikhathi senqubo yokwelapha. Lokhu kubaluleke kakhulu ekuvimbeleni ukwakheka kwemifantu, okungaphazamisa ukusebenza nobuhle be-putty.
Ukumelana Namanzi:
Impushana exutshwe nempushana ye-latex ehlakazeka kabusha ivamise ukungezwani namanzi. Izinhlayiya ze-latex zakha ungqimba lwe-hydrophobic ngaphakathi kwe-putty, okwenza umkhiqizo ophulukisiwe ungathinteki kalula ekumunceni kwamanzi futhi, ngakho-ke, ulungele kangcono ukusetshenziswa kwangaphandle.
Ukufaka i-latex powder e-redispersible ekwakhiweni kwe-putty kuthuthukisa kakhulu izakhiwo zayo, ikakhulukazi phakathi nenqubo yokuqina. Izinzuzo ezibalulekile ze-RDP zihlanganisa ukusebenza okuthuthukisiwe, ukuguquguquka okuthuthukisiwe, amandla andayo nokuqina, ukuncipha kokuncipha, nokumelana kwamanzi kangcono. Lokhu kuthuthukiswa kwenza ama-putty alungiswe nge-RDP afaneleke kakhulu kukho kokubili izinhlelo zokusebenza zangaphakathi nezangaphandle, okuhlinzeka ngokuphila isikhathi eside nokusebenza okukhulu ngaphansi kwezimo zemvelo ezihlukahlukene.
Ochwepheshe bezokwakha kanye nabakhiqizi, ukusetshenziswa kwei-latex powder ehlakazeka kabusha inikeza indlela elula kodwa ephumelelayo yokuthuthukisa izakhiwo ze-putty powders zendabuko, okuholela kumkhiqizo okulula ukuwusebenzisa, oqinile, futhi ongakwazi ukuqhekeka noma ukushwabana ngokuhamba kwesikhathi. Ngokulungiselela ukwakheka nge-RDP, ama-putty powders ashintshashintsha kakhudlwana, ngokusebenza okuthuthukisiwe kukonke mayelana nokunamathela, ubulukhuni, kanye nokumelana nezinto.
Isikhathi sokuthumela: Mar-20-2025