I-Cellulose ether, eyaziwa nangokuthi i-methylcellulose/hydroxypropylmethylcellulose (HPMC/MHEC), iyi-polymer encibilika emanzini esetshenziswa kabanzi ezakhiweni. Inezakhiwo eziningana ezibalulekile ezenza ibe yinto ebalulekile yokusetshenziswa kobumba kanye nosimende. Izakhiwo ezihlukile zama-cellulose ethers zifaka phakathi ukugcinwa kwamanzi, ukunamathela okuhle, kanye nekhono lokusebenza njengezithambisi.
Ama-cellulose ether andisa amandla okubopha kwe-mortar ngokunikeza ukuguquguquka nokunwebeka kwengxube ye-mortar. Ngenxa yalokho, izinto zokwakha ziba lula ukusebenza ngazo futhi umkhiqizo wokugcina uhlala isikhathi eside. Lesi sihloko sizohlola ukuthi ama-cellulose ethers (HPMC/MHEC) athinta kanjani amandla okubopha kwe-mortars.
Umphumela we-cellulose ether ku-mortar
Ama-cellulose ether ayizithako ezibalulekile ezintweni eziningi zokwakha, okuhlanganisa udoti kanye nesamente. Uma isetshenziswa kudoti, i-cellulose ether isebenza njengesihlanganisi, isiza ukubopha ingxube ndawonye futhi ithuthukise ukusebenza kahle kwezinto. Izakhiwo zokugcina amanzi zama-cellulose ether zinikeza izimo ezifanele zokubopha kahle ama-mortar nama-cement, kuyilapho ukunamathela okuhle kusiza ukwakha isibopho esiqinile phakathi kwezingxenye ezahlukene.
Udaka luyinto ebalulekile yokwakha esetshenziselwa ukunamathisela izitini noma amabhlogo ndawonye. Ikhwalithi yesibopho ithinta amandla nokuqina kwesakhiwo. Ngaphezu kwalokho, amandla esibopho ayimpahla ebalulekile ukuqinisekisa ukuthi isakhiwo singamelana nazo zonke izimo esibhekene nazo. Amandla esibopho sesibopho abaluleke kakhulu ngoba isakhiwo esingaphansi kwanoma yikuphi ukucindezeleka noma umthwalo sincike kakhulu ekhwalithini yesibopho sesibopho sesibopho. Uma amandla esibopho enganele, isakhiwo sithambekele ezinkingeni ezinkulu njengokuqhekeka noma ukwehluleka, okuholela ezingozini ezingalindelekile, izindleko zokulungisa ezengeziwe kanye nezingozi zokuphepha.
Indlela yokusebenza kwama-cellulose ethers
I-Cellulose ether iyi-polymer encibilika emanzini esetshenziselwa ukuthuthukisa izakhiwo ze-mortar. Indlela yokusebenza ye-cellulose ether ku-mortar ukusabalala kwezithasiselo, ezifanele kakhulu ama-polymer ancibilika emanzini, futhi ithuthukisa amandla ezinto ngokunciphisa ukucindezeleka kobuso bezinto. Lokhu kusho ukuthi uma i-cellulose ether ingezwa ku-mortar, ihlakazeka ngokulinganayo kuyo yonke ingxube, ivimbele ukwakheka kwezigaxa ezingabangela izindawo ezibuthakathaka ekubopheni kwe-mortar.
I-cellulose ether isebenza futhi njenge-ejenti yokujiya ku-mortar, idala ingxube eqinile evumela ukuthi inamathele ngokuqinile esitini noma ku-block esetshenziswa kuyo. Ngaphezu kwalokho, ithuthukisa ivolumu yomoya futhi ithuthukise ukusebenza kahle kwe-mortar ukuze isebenze kahle kakhulu futhi kube lula ukuyisebenzisa. Ama-cellulose ethers afakwe ku-mortar anciphisa ijubane lapho amanzi engxubeni ephuma khona, okwenza i-mortar ibe lula ukuyisebenzisa futhi ihlanganise izingxenye ndawonye ngokuqinile.
Izinzuzo ze-cellulose ether ku-mortar
Ukwengezwa kwama-cellulose ethers (HPMC/MHEC) kuma-mortar kunezinzuzo eziningana okuhlanganisa nokuqina kwe-bond okuthuthukisiwe. Amandla aphezulu e-bond andisa ukuqina kwesikhathi eside kwesakhiwo, okugwema ukulungiswa okubizayo.
Ama-cellulose ether nawo anikeza ukusebenza okungcono ku-mortar, okwenza kube lula ukwakha nokunciphisa isikhathi esidingekayo sezicelo ezidinga umsebenzi omningi. Lokhu kusebenza okuthuthukisiwe kusiza ukwandisa isivinini kanye nokusebenza kahle, ngaleyo ndlela kwandise umkhiqizo embonini yokwakha.
I-cellulose ether ingathuthukisa nokusebenza kokugcinwa kwamanzi kwe-mortar futhi iqinisekise isikhathi esanele sokuqina okuzinzile. Lokhu kuthuthukisa ukubopha kwezinto ezisetshenziswa ekwakheni, okuholela esakhiweni esiqinile.
Ama-mortar e-cellulose ether angeziwe kulula ukuwahlanza, futhi ukususa izinto ezisele esakhiweni esiqediwe akunzima. Ukunamathela okwandisiwe kwe-mortar ezintweni zokwakha kusho ukuchithwa okuncane ngoba ingxube ngeke iqhekeke noma ikhululeke esakhiweni ngesikhathi senqubo yokulinganisa.
Ekuphetheni
Ukwengezwa kwama-cellulose ethers (HPMC/MHEC) kuma-mortar kudlala indima ebalulekile ekuthuthukiseni amandla e-bond of the mortars for construction. Ama-cellulose ethers ahlinzeka ngokugcinwa kwamanzi, athuthukisa ukusebenza kahle kwe-mortar, futhi avumela izinga eliphansi lokuhwamuka ukuze kube nokubopha okungcono kwezinto. Amandla e-bond akhuphukile aqinisekisa ukuqina kwesakhiwo, anciphise izinkinga zokulungisa ezingalindelekile, athuthukise ukuphepha futhi anciphise izindleko zokwakha. Uma ubheka zonke lezi zinzuzo, kusobala ukuthi ukusetshenziswa kwama-cellulose ethers kufanele kwamukelwe kabanzi embonini yokwakha ukuze kube nemiklamo yokwakha esezingeni eliphezulu neqinile.
Isikhathi sokuthunyelwe: Septhemba-01-2023