Iyini i-Gypsum Hand Plaster?

I-Gypsum hand plaster iyimpahla yokwakha esetshenziselwa ukuqeda udonga lwangaphakathi. Kuyingxube ye-gypsum, ama-aggregates, nezinye izithasiselo, futhi isetshenziswa ngesandla ngabasebenzi abanamakhono abasebenzisa amathuluzi ezandla. I-plaster iphonswa phezu kodonga, okwenza kube nokushelela futhi ngisho nokuqeda okungashiywa njengoba kunjalo noma kupendwe ngaphezulu.

I-Gypsum, isithako esiyinhloko se-gypsum hand plaster, iyiminerali eyenzeka ngokwemvelo embiwa ngokufakwa emhlabathini. Yimpahla ethambile nemhlophe ecolwa kalula ibe yimpushana. Uma ixutshwe namanzi, i-gypsum yenza unamathisele oqina ube into eqinile. Lesi sakhiwo sikwenza kube isithako esikahle sokuplasta.

Ama-aggregates, njengesihlabathi noma i-perlite, yengezwa kungxube ye-gypsum plaster ukuze kuthuthukiswe ukusebenza kwayo, ukunciphisa ukushwabana nokuqhekeka, futhi kuthuthukiswe izakhiwo zayo zokushisa ezishisayo kanye ne-acoustic. Ezinye izithasiselo, njengemicu ye-cellulose noma i-air-entraining agents, nazo zingangezwa ukuze kuthuthukiswe amandla nokuqina kwe-plaster.

I-Gypsum hand plaster iyinto eguquguqukayo engasetshenziswa ezinhlobonhlobo zokuqeda udonga lwangaphakathi. Ingasetshenziswa kunoma iyiphi indawo ehlanzekile, eyomile, nenomsindo, okuhlanganisa ukhonkolo, amatshe, noma i-plasterboard. I-plaster ingasetshenziselwa ukwakha isiphetho esibushelelezi noma esibhaliwe, kuye ngokubukeka okufunayo.

Enye yezinzuzo ze-gypsum hand plaster yizindawo zayo ezikwazi ukumelana nomlilo. I-Gypsum iyinto ngokwemvelo ekwazi ukumelana nomlilo engasiza ekuvimbeleni ukusabalala komlilo uma kuba nomlilo. Lokhu kwenza kube ukukhetha okuthandwayo ezakhiweni zezentengiselwano nezasesidlangalaleni, lapho ukuphepha komlilo kuwukukhathazeka.

Enye inzuzo ye-gypsum hand plaster kulula ukuyisebenzisa. Ngokungafani nama-plaster afakwe ngomshini, adinga imishini ekhethekile, i-gypsum hand plaster ingasetshenziswa ngesandla usebenzisa amathuluzi ezandla alula. Lokhu kwenza kube yisixazululo esingabizi kakhulu samaphrojekthi amancane noma izindawo okunzima ukufinyelela kuzo.

Ngakolunye uhlangothi, i-cellulose ether, i-polymer encibilika emanzini etholakala ku-cellulose yemvelo. Ivamise ukusetshenziswa kuplasta yesandla ye-gypsum njengesengezo sokuthuthukisa ukusebenza nokusebenza kwento.

I-cellulose ether yengezwa kungxube ye-gypsum plaster ukuze kuthuthukiswe izici zayo ezifana nokugcinwa kwamanzi, ukunamathela, nokusebenza. Isebenza njenge-thickener, evumela i-plaster ukuthi isakaze kalula futhi ngokulinganayo phezu kwendawo, ukunciphisa ukuqhekeka nokuthuthukisa ukubukeka kwayo jikelele. Iphinde isebenze njenge-binder, ibambe ingxube ndawonye futhi ithuthukise ukunamathela kwayo phezulu.

Izici zokugcina amanzi ze-cellulose ether zibaluleke kakhulu ku-gypsum hand plaster. I-Gypsum plaster idinga inani elithile lomswakama ukuze kuzuzwe ukulungiselelwa okufanele nokuqina. Ngaphandle kokugcinwa kahle kwamanzi, ukhonkolo lungoma ngokushesha, okuholela ekuqhekekeni, ukuncipha, nokunye ukukhubazeka. I-Cellulose ether isiza ukugcina amanzi engxubeni ye-plaster, inciphisa inqubo yokomisa futhi iqinisekise ukuthi ukhonkolo luhlala kahle.

Ngaphezu kokugcina amanzi kanye nokujiya, i-cellulose ether ingaphinde ithuthukise izici zokufakwa kwe-thermal ne-acoustic ze-gypsum hand plaster. Ngokungeza imicu ye-cellulose ekuxubeni, ukhonkolo unganikeza ukumuncwa okungcono komsindo kanye nokwahlukanisa, kuthuthukise ukunethezeka okuphelele nokusebenza kahle kwamandla kwesakhiwo.

Ukukhethwa kanye nenani le-cellulose ether engezwe ku-gypsum hand plaster kungathinta kakhulu ukusebenza nokusebenza kwayo. Izinhlobo ezahlukene ze-cellulose ether ziyatholakala, njenge-hydroxyethyl cellulose (HEC), i-methyl cellulose (MC), ne-carboxymethyl cellulose (CMC), ngayinye enezici nezici zayo ezihlukile. Uhlobo nenani le-cellulose ether engezwe kumxube we-plaster kumele kukhethwe ngokucophelela ngokusekelwe ezidingweni ezithile zephrojekthi.

Ngamafuphi, i-gypsum hand plaster iyimpahla yokwakha esetshenziselwa ukuqeda udonga lwangaphakathi. Kuyingxube ye-gypsum, ama-aggregates, nezinye izithasiselo, futhi isetshenziswa ngesandla ngabasebenzi abanamakhono abasebenzisa amathuluzi ezandla. I-Gypsum hand plaster ayishisi, kulula ukuyifaka, futhi ingasetshenziswa ukudala ukuqedela okuhlukahlukene.