IHydroxypropyl methylcellulose (HPMC) i-cellulose ether evame ukusetshenziswa ezimbonini ezahlukahlukene, kufaka phakathi i-gypsum embonini yezokwakha.Le nhlanganisela enemisebenzi eminingi idlala indima ebalulekile ekuthuthukiseni ukusebenza kanye nezakhiwo ze-gypsum plaster.
1. Isingeniso ku-HPMC:
IHydroxypropyl methylcellulose iwukuphuma kokwenziwa kwe-polymer cellulose yemvelo.Yenziwe ngokwelapha i-cellulose nge-propylene oxide ne-methyl chloride.Umphumela uba i-polymer encibilika emanzini enezakhiwo eziyingqayizivele ezingathola izinhlelo zokusebenza ezinhlobonhlobo zezimboni.
2. Ukusebenza kwe-HPMC:
Ukunyibilika kwamanzi: I-HPMC incibilika kalula emanzini, yakha isixazululo esisobala nesingenambala.
Izakhiwo zefilimu: Izakhiwo zokwakha ifilimu zisiza ukwakha ifilimu evikelayo ebusweni.
I-Thermal Gelation: I-HPMC ithola i-gelation eshintshayo eshintshashintshayo, okusho ukuthi ingakha ijeli emazingeni okushisa aphezulu futhi ibuyele esixazululweni lapho ipholisa.
I-Viscosity: I-viscosity yesisombululo se-HPMC ingalungiswa ngokuya ngezinga lokushintshwa kanye nesisindo samangqamuzana.
3. Ukusetshenziswa kwe-HPMC ku-gypsum:
Ukugcinwa kwamanzi: I-HPMC isebenza njenge-ejenti yokugcina amanzi ku-gypsum, ivimbela ukulahleka kwamanzi ngokushesha ngesikhathi sokusetha.Lokhu kuthuthukisa ukusebenza kahle futhi kunikeza impilo ende yohlelo lokusebenza.
Ukunamathela Okuthuthukisiwe: Izakhiwo zefilimu ze-HPMC zisiza ukuthuthukisa ukunamathela kwe-stucco kuma-substrates ahlukahlukene, kudala isibopho esiqinile.
Ukulawula Ukungaguquguquki: Ngokulawula i-viscosity yengxube ye-gypsum, i-HPMC isiza ukugcina ukungaguquguquki kohlelo lokusebenza, iqinisekisa ukuphela kwendawo efanayo.
I-Crack Resistance: Ukusebenzisa i-HPMC kusimende kusiza ukuthuthukisa ukuguquguquka futhi kunciphisa amathuba okuqhekeka komkhiqizo oqediwe.
Isikhathi Sokusetha: I-HPMC ingaba nomthelela ekumisweni kwesikhathi se-gypsum ukuze ilungiswe ukuze ihlangabezane nezidingo ezithile zohlelo lokusebenza.
4. Umthamo nokuxuba:
Inani le-HPMC elisetshenziswa ku-gypsum lincike ezintweni ezihlukahlukene ezifana nezakhiwo ezifunwayo, ukwakhiwa kwegypsum kanye nezidingo zokusetshenziswa.Ngokuvamile, yengezwa ekuxubeni okomile ngesikhathi sokuxuba.Izinqubo zokuxuba zibalulekile ukuze kuqinisekiswe ukuhlakazeka okufanayo nokusebenza kahle.
5.Ukuhambisana nokuphepha:
I-HPMC iyahambisana nezinhlobonhlobo zezinye izithasiselo ezisetshenziswa ekwakhiweni kukakhonkolo.Ngaphezu kwalokho, kubhekwa njengokuphephile ukusetshenziswa ezintweni zokwakha futhi kuhambisana nezindinganiso ezifanele zokulawula.
6. Isiphetho:
IHydroxypropyl methylcellulose (HPMC) idlala indima ebalulekile ekwenzeni ngcono ukusebenza kwe-gypsum plaster.Izakhiwo zayo eziyingqayizivele zisiza ukuthuthukisa ukusebenza, ukunamathela kanye nekhwalithi jikelele ye-plaster.Isengezo esisetshenziswa kabanzi embonini yezokwakha, i-HPMC isalokhu iyingxenye ebalulekile yokwakheka kukakhonkolo kwekhwalithi ephezulu.
Isikhathi sokuthumela: Jan-19-2024