I-redispersible latex powder, eyaziwa nangokuthi i-redispersible polymer powder (RDP), iyimpushana ye-polymer ekhiqizwa ngokufutha i-latex esekelwe emanzini.Ngokuvamile isetshenziswa njengesengezo ezintweni ezihlukahlukene zokwakha, kuhlanganise nodaka.Ukwengeza impushana ye-latex ehlakazeka kabusha odakeni kunikeza izinzuzo ezihlukahlukene, okuhlanganisa ukunamathela okuthuthukisiwe, ukuguquguquka, ukumelana namanzi nokusebenza kukonke.
A. Izici zempushana ye-latex ehlakazeka kabusha:
1.Ukwakheka kwePolymer:
Redispersible latex powder ngokuvamile yakhiwa polymers ehlukahlukene, ezifana vinyl acetate-ethylene (VAE), vinyl acetate-ethylene carbonate (VeoVa), njll Lezi polymers nomthelela ikhono powder ukuhlakazeka emanzini.
2. Usayizi we-particle:
Usayizi wezinhlayiyana ze-latex powder ezihlakazeka kabusha zibalulekile ekuhlakazeni nasekusebenzeni kwayo ezinhlelweni ezihlukahlukene.Izinhlayiya ezihlukaniswe kahle ziqinisekisa ukuhlakazeka kalula emanzini ukuze zenze ama-emulsions azinzile.
3. Ukuhlakazeka kabusha:
Esinye sezici eziyinhloko zale powder yi-redispersibility yayo.Uma ixubene namanzi, yakha i-emulsion ezinzile efana ne-latex yasekuqaleni, ihlinzeka ngezinzuzo ze-latex ye-liquid ngesimo se-powder.
B. Indima yempushana ye-latex ehlakazeka kabusha odakeni:
1. Thuthukisa ukunamathela:
Ukwengezwa kwempushana ye-latex ehlakazekayo odakeni kuthuthukisa ukunamathela kuma-substrates ahlukahlukene, okuhlanganisa ukhonkolo, ama-masonry namathayili e-ceramic.Lokhu kunamathela okuthuthukisiwe kusiza ukuthuthukisa amandla kanye nokuqina kodaka.
2. Khulisa ukuguquguquka:
Izidumbu ezilungiswe ngempushana ye-latex ehlakazeka kabusha zibonisa ukuguquguquka okuphezulu.Lokhu kunenzuzo ikakhulukazi ezimeni lapho i-substrate ingase izwakale ukunyakaza okuncane noma ukunwetshwa nokuncipha kokushisa okushisayo.
3. Ingangeni manzi:
Impushana ye-latex ehlakazeka kabusha inikeza ukumelana namanzi odaka.Lokhu kubalulekile ezinhlelweni lapho udaka luchayeka khona emanzini noma kumswakama, njengasekufakweni kwangaphandle noma ezindaweni ezinomswakama.
4. Yehlisa ukuqhekeka:
Ukuguquguquka okuhlinzekwa yimpushana ye-latex ehlakazeka kabusha kusiza ukunciphisa amathuba okuqhekeka kodaka.Lokhu kubaluleke kakhulu ezinhlelweni lapho imifantu ingase iphazamise ubuqotho besakhiwo.
5. Ukuqhubekela phambili okuthuthukisiwe:
Izigxobo eziqukethe izimpushana ze-latex ezihlakazeka kabusha ngokuvamile zibonisa ukusebenza okuthuthukisiwe, okuwenza kube lula ukuphatha nokwakha.Lokhu kungase kube yinzuzo phakathi nemisebenzi yokwakha.
6. Ukuhambisana nezinye izithasiselo:
I-latex powder e-redispersible iyahambisana nezinhlobonhlobo zezinye izithasiselo ezivame ukusetshenziswa ekwakhiweni kodaka.Lokhu kuguquguquka kuvumela ukusebenza kodaka ukuthi kuhambisane nezidingo ezithile zephrojekthi.
C. Izinzuzo zokusebenzisa impushana ye-latex ehlakazeka kabusha odakeni:
1. Ukuhlukahluka:
I-latex powder ye-redispersible isetshenziswa kakhulu futhi ingasetshenziswa ezinhlotsheni ezihlukene zodaka, okuhlanganisa udaka olusethiwe mncane, izinsimbi zokulungisa, nezinsimbi ezingangeni manzi.
2. Thuthukisa ukuqina:
Amamodemu ashintshiwe anikeza ukuqina okukhulu futhi afanele izicelo ezifunayo lapho ukuphila isikhathi eside kubalulekile.
3. Ukusebenza okuzinzile:
Inqubo yokukhiqiza elawulwayo ye-latex powder ehlakazeka kabusha iqinisekisa ukusebenza okungaguquki, okuholela emiphumeleni ebikezelwe ekusetshenzisweni kodaka.
4. Ukusebenza kahle kwezindleko:
Nakuba izindleko zokuqala ze-latex powder ezihlakazeka kabusha zingase zibe phezulu kunezithasiselo zendabuko, izakhiwo ezithuthukisiwe ezinikeza udaka zingaholela ekongeni izindleko zesikhathi eside ngokunciphisa isidingo sokulungisa nokugcinwa.
5. Ukucatshangelwa kwemvelo:
Impushana ye-latex ehlakazeka emanzini esekelwe emanzini ihambisana kakhulu nemvelo kunezinye izindlela ezisekelwe ku-solvent.Bafaka isandla emisebenzini yokwakha esimeme.
I-latex powder e-redispersible iyisengezo esibalulekile ekwakhiweni kodaka, enikeza uhla lwezinzuzo ezifana nokunamathela okuthuthukisiwe, ukuguquguquka, ukumelana kwamanzi nokunciphisa ukuqhekeka.Ukuguquguquka kwayo kanye nokuhambisana nezinye izithasiselo kuyenza ibe yinketho yokuqala ezinhlobonhlobo zezinhlelo zokusebenza zokwakha.Ngokuthuthukisa izakhiwo zodaka, impushana ye-latex ehlakazekayo isiza ukuthuthukisa ukuqina okuphelele nokusebenza kwezingxenye zokwakha, ikwenze kube ithuluzi elibalulekile emisebenzini yokwakha yesimanje.
Isikhathi sokuthumela: Jan-18-2024