I-Cellulose ether, eyaziwa nangokuthi i-methylcellulose/hydroxypropylmethylcellulose (HPMC/MHEC), i-polymer encibilika emanzini esetshenziswa kabanzi ezinhlelweni zokwakha.Inezici ezimbalwa ezibalulekile eziyenza ibe impahla eluhlaza ebalulekile ekwenzeni udaka nosimende.Izakhiwo ezihlukile zama-cellulose ethers zihlanganisa ukugcinwa kwamanzi, ukunamathela okuhle, kanye nekhono lokusebenza njengama-thickeners.
Ama-cellulose ethers akhuphula amandla esibopho sodaka ngokunikeza ukuguquguquka nokunwebeka kungxube yodaka.Ngenxa yalokho, impahla iba lula ukusebenza nayo futhi umkhiqizo wokugcina uhlala isikhathi eside.Lesi sihloko sizohlola ukuthi ama-cellulose ethers (HPMC/MHEC) awathinta kanjani amandla ebhondi osimende.
Umthelela we-cellulose ether odakeni
Ama-cellulose ether ayizithako eziyinhloko ezintweni eziningi zokwakha, kuhlanganise nodaka nosimende.Uma isetshenziselwa udaka, i-cellulose ether isebenza njengesibophezelo, esiza ukuhlanganisa ingxube ndawonye futhi ithuthukise ukusebenza kwento.Izakhiwo ezigcina amanzi ze-cellulose ethers zinikeza izimo ezikahle zokuphulukiswa okufanele kosimende namasimende, kuyilapho ukunamathela okuhle kusiza ukwakha isibopho esiqinile phakathi kwezingxenye ezihlukene.
Udaka luyimpahla yokwakha ebalulekile esetshenziselwa ukunamathisela izitini noma amabhlogo ndawonye.Izinga lesibopho lithinta amandla nokuqina kwesakhiwo.Ukwengeza, amandla ebhondi ayimpahla ebalulekile yokuqinisekisa ukuthi isakhiwo singakwazi ukumelana nazo zonke izimo esingaphansi kwazo.Amandla esibopho sodaka abaluleke kakhulu ngoba isakhiwo ngaphansi kwanoma yikuphi ukucindezeleka noma umthwalo sincike kakhulu kwikhwalithi yebhondi yodaka.Uma amandla ebhondi enganele, isakhiwo sithambekele ezinkingeni ezinkulu njengokuqhekeka noma ukwehluleka, okuholela ezingozini ezingalindelekile, ukwanda kwezindleko zokunakekela kanye nezingozi zokuphepha.
Indlela yokusebenza ye-cellulose ethers
I-Cellulose ether iyi-polymer encibilika emanzini esetshenziselwa ukuthuthukisa izakhiwo zodaka.Indlela yokusebenza ye-cellulose ether odakeni iwukuhlakazwa kwezithasiselo, ezifanele kakhulu ama-polymers ancibilika emanzini, futhi ithuthukisa amandla wezinto ngokunciphisa ukungezwani okungaphezulu kwezinto.Lokhu kusho ukuthi lapho i-cellulose ether yengezwa odakeni, ihlakazeka ngokulinganayo kuyo yonke ingxube, ukuvimbela ukwakheka kwezigaxa ezingabangela izindawo ezibuthakathaka kubhondi yodaka.
I-Cellulose ether iphinde isebenze njenge-ejenti ejiya odakeni, idale ingxube ye-viscous eyengeziwe eyivumela ukuthi ibambelele ngokuqinile esitini noma ivimbe esisetshenziswa kuso.Ngaphezu kwalokho, ithuthukisa umthamo womoya futhi ithuthukise ukusebenza kodaka ukuze isebenze kahle kakhulu futhi ikhule kalula ukusetshenziswa.Ama-cellulose ethers anezelwe odakeni anciphisa izinga amanzi engxube ahwamuka ngalo, okwenza udaka lufakwe kalula futhi luhlanganise izingxenye ndawonye ngokuqinile.
Izinzuzo ze-cellulose ether odakeni
Ukwengezwa kwama-cellulose ethers (HPMC/MHEC) odakeni kunezinzuzo ezimbalwa ezihlanganisa amandla ebhondi athuthukisiwe.Amandla ebhondi aphakeme akhulisa ukuqina kwesikhathi eside kwesakhiwo, ukugwema ukulungiswa okumba eqolo.
Ama-cellulose ether aphinde anikeze ukusebenza okungcono odakeni, okwenza kube lula ukwakha nokunciphisa isikhathi esidingekayo ekusetshenzisweni okudinga abasebenzi.Lokhu kusebenza okuthuthukisiwe kusiza ukwandisa isivinini nokusebenza kahle, ngaleyo ndlela kwandise umkhiqizo embonini yezokwakha.
I-Cellulose ether ingaphinde ithuthukise ukusebenza kokugcinwa kwamanzi kodaka futhi iqinisekise isikhathi esanele sokuphulukiswa okuzinzile.Lokhu kuthuthukisa ukuhlangana kwezinto ezisetshenziswa ekwakheni, okuholela esakhiweni esihlala isikhathi eside.
I-cellulose ether additive mortars kulula ukuyihlanza, futhi ukususa izinto ezingaphezu kwesakhiwo esiphelile akunzima.Ukwanda kokunamathela kodaka entweni yokwakha kusho udoti omncane ngoba ukuxubana ngeke kuqubuke noma kuxege esakhiweni ngesikhathi senqubo yokulinganisa.
Ekuphetheni
Ukwengezwa kwama-cellulose ethers (HPMC/MHEC) kuma-mortars kudlala indima ebalulekile ekuthuthukiseni amandla ebhondi odaka lwezinhlelo zokusebenza zokwakha.Ama-cellulose ether ahlinzeka ngokugcinwa kwamanzi, athuthukisa ukusebenza kodaka, futhi avumele izinga eliphansi lokuhwamuka ukuze kuhlanganiswe izinto ezingcono.Ukwenyuka kwamandla ebhondi kuqinisekisa ukuqina kwesakhiwo, kunciphisa izinkinga zokunakekelwa okungalindelekile, ukuthuthukisa ukuphepha kanye nokunciphisa izindleko zokwakha.Uma kucatshangelwa zonke lezi zinzuzo, kuyacaca ukuthi ukusetshenziswa kwe-cellulose ethers kufanele kwamukelwe kabanzi embonini yezokwakha ukuze kube nekhwalithi engcono nemiklamo yokwakha eqinile.
Isikhathi sokuthumela: Sep-01-2023