Impuphu ye-polymer e-Redispersible (RDP) iyi-copolymer ye-vinyl acetate ne-ethylene ekhiqizwa ngenqubo yokomisa ngokufutha. Iyisithako esibalulekile ezinhlotsheni ezahlukene zezicelo zokwakha, inikeza ukunamathela okungcono, ukuguquguquka kanye nokuqina kwemikhiqizo esekelwe kusimende. Ukukhiqizwa kwempuphu ye-polymer e-Redispersible kuhilela izinyathelo eziningana.
1. Ukukhetha izinto ezingavuthiwe:
I-Vinyl acetate-ethylene copolymer: Izinto eziyinhloko zokusetshenziswa ze-RDP yi-copolymer ye-vinyl acetate ne-ethylene. Le copolymer yakhethwa ngenxa yezakhiwo zayo ezinhle kakhulu zokunamathela kanye nekhono lokukhulisa ukuguquguquka nokuqina kwezinto eziqinisa ukhonkolo.
2. Ukwenziwa kwe-polymer ye-emulsion:
Inqubo yokukhiqiza iqala nge-emulsion polymerization, lapho ama-vinyl acetate nama-ethylene monomers enziwa i-polymerized phambi kwabaqalisi kanye nabaqinisi.
Inqubo yokwenza i-emulsion polymerization ilawulwa ngokucophelela ukuze kutholakale isisindo sama-molecule, ukwakheka, kanye nesakhiwo se-copolymer esifiselekayo.
3. Ukusabela kanye ne-copolymerization:
Ama-vinyl acetate nama-ethylene monomers asabela lapho kukhona i-catalyst ukuze akhe i-copolymer.
Inqubo ye-copolymerization ibalulekile ukuthola ama-polymer anezakhiwo ezifiselekayo, okuhlanganisa izakhiwo ezinhle zokwakha ifilimu kanye nokuhlakazeka kabusha.
4. Ukomisa ngesifutho:
I-emulsion ibe isifakwa enkambisweni yokomisa ngesifutho. Lokhu kuhilela ukufafaza i-emulsion ekamelweni elishisayo, lapho amanzi ehwamuka khona, kushiye izinhlayiya eziqinile ze-polymer ephinde ihlakazeke.
Izimo zokomisa ngesifutho, njengokushisa kanye nokugeleza komoya, zilawulwa ngokucophelela ukuqinisekisa ukwakheka kwezinhlayiya zempuphu ecolekileyo ezigeleza ngokukhululekile.
5. Ukwelashwa kwendawo:
Ukwelashwa kwendawo kuvame ukusetshenziselwa ukuthuthukisa ukuzinza kwesitoreji kanye nokuhlakazeka kabusha kwama-polymer powders.
Izithasiselo ezivikela amanzi noma ama-colloid avikelayo zivame ukusetshenziswa ekwelapheni ubuso ukuze kuvinjelwe ukuhlangana kwezinhlayiya nokuthuthukisa ukusabalala kwempuphu emanzini.
6. Ukulawulwa kwekhwalithi:
Izinyathelo zokulawula ikhwalithi eziqinile ziyasetshenziswa kuyo yonke inqubo yokukhiqiza. Amapharamitha anjengokusatshalaliswa kosayizi wezinhlayiya, ubuningi benqwaba, okuqukethwe kwe-monomer eseleyo kanye nokushisa kokuguquka kwengilazi kuyaqashwa ukuqinisekisa ukuhambisana komkhiqizo.
7. Ukupakisha:
Impuphu yokugcina ye-polymer ephinde ihlakazeke ifakwe ezitsheni ezingangeni umswakama ukuvimbela ukumuncwa kwamanzi, okungase kuthinte kabi ukusebenza kwayo.
Ukusetshenziswa Kwezimpushana Ze-Polymer Eziphinde Zisabalale:
I-RDP isetshenziswa ezinhlobonhlobo zezicelo zokwakha okuhlanganisa izinamathiseli zamathayili, ama-compounds azilinganisayo, izinhlelo zokuqeda ukufakelwa kwangaphandle (i-EIFS) kanye nama-mortar esimende.
Impuphu ithuthukisa izakhiwo ezifana nokumelana namanzi, ukuguquguquka kanye nokunamathela, okusiza ekuthuthukiseni ukusebenza kanye nokuqina kwalezi zinto zokwakha.
Ekuphetheni:
Impuphu ye-polymer ephinde ihlakazeke iyinto eguquguqukayo enezicelo ezibalulekile embonini yokwakha. Ukukhiqizwa kwayo kuhilela ukukhetha ngokucophelela izinto zokusetshenziswa, ukwenziwa kwe-emulsion polymerization, ukomisa nge-spray, ukwelashwa kwendawo kanye nezinyathelo eziqinile zokulawula ikhwalithi.
Ukukhiqizwa kwama-powder e-polymer aphinde ahlakazeke kuyinqubo eyinkimbinkimbi edinga ukunemba nokunaka imininingwane ukuze kutholakale umkhiqizo osezingeni eliphezulu onezakhiwo ezidingekayo ezisetshenziswa ekwakheni.
Isikhathi sokuthunyelwe: Disemba 18-2023