I-Gypsum iyinto evamile yokwakha esetshenziselwa ukuhlobisa odongeni lwangaphakathi nangaphandle.Idumile ngenxa yokuqina kwayo, ubuhle bayo, nokumelana nomlilo.Kodwa-ke, naphezu kwalezi zinzuzo, i-plaster ingakwazi ukuthuthukisa imifantu ngokuhamba kwesikhathi, engaphazamisa ubuqotho bayo futhi ithinte ukubukeka kwayo.Ukuqhekeka kwe-plaster kungenzeka ngezizathu ezihlukahlukene, kuhlanganise nezici zemvelo, ukwakhiwa okungalungile, nezinto ezisezingeni eliphansi.Eminyakeni yamuva nje, izithasiselo ze-hydroxypropyl methylcellulose (HPMC) ziye zavela njengesixazululo sokuvimbela ukuqhekeka kwe-plaster.Lesi sihloko sigqamisa ukubaluleka kwezithasiselo ze-HPMC ekuvimbeleni ukuqhekeka kukakhonkolo nokuthi zisebenza kanjani.
Yiziphi izithasiselo ze-HPMC futhi zisebenza kanjani?
Izithasiselo ze-HPMC zivame ukusetshenziswa embonini yezokwakha njengama-ejenti wokumboza kanye nezishintshi ze-viscosity ezinhlelweni eziningi, kufaka phakathi ukuplasta.Etholakala ku-cellulose, ayancibilika emanzini abandayo nashisayo ngakho-ke angasetshenziswa ezinhlobonhlobo zezicelo zokwakha.Uma ixutshwe namanzi, impushana ye-HPMC yenza into efana nejeli engangezwa ezixutshweni ze-stucco noma isetshenziswe njengokwemboza phezu kwezindonga ezinamekiwe.Ukuthungwa okufana nejeli kwe-HPMC kuyivumela ukuthi isabalale ngokulinganayo, ivimbele ukuhwamuka okukhulu komswakamo futhi yehlise nengozi yokuqhekeka.
Inzuzo enkulu yezithasiselo ze-HPMC yikhono lokulawula izinga lokugeleza kwe-gypsum, okuvumela izikhathi zokusetha ezifanele.Lezi zithasiselo zidala umgoqo obambezela ukukhishwa kwamanzi, ngaleyo ndlela kuncishiswe ithuba lokomisa ngaphambi kwesikhathi kanye nokuqhekeka okulandelayo.Ngaphezu kwalokho, i-HPMC ingahlakaza amabhamuza omoya kungxube ye-gypsum, esiza ukuthuthukisa ukusebenza kwayo futhi kwenze kube lula ukuyisebenzisa.
Vimbela ukuqhekeka kukakhonkolo ngokusebenzisa izithasiselo ze-HPMC
Ukomisa ukuncipha
Esinye sezimbangela eziyinhloko zokuqhekeka kwe-plaster ukushwabana kobuso be-plaster omiswe.Lokhu kwenzeka lapho i-stucco somile futhi sishwabana, kudala ukungezwani okubangela ukuqhekeka.Izithasiselo ze-HPMC zingasiza ekwehliseni ukushwabana okomisa ngokunciphisa izinga lapho amanzi ahwamuka khona engxubeni ye-gypsum, okuholela ekusabalaliseni amanzi ngokulinganayo.Lapho ingxube ye-plaster inomswakama ohambisanayo, izinga lokumisa lifana, linciphisa ingozi yokuqhekeka nokuncipha.
Ukuxuba okungalungile
Ezimweni eziningi, i-plaster exutshwe kabi izoholela emaphuzwini abuthakathaka angaphuka kalula.Ukusebenzisa izithasiselo ze-HPMC kumamiksi e-gypsum kungasiza ukuthuthukisa izakhiwo zokwakha futhi kwenze inqubo yokwakha ibe bushelelezi.Lezi zithako zihlakaza amanzi ngokulinganayo kulo lonke ukhonkolo, okuvumela amandla angaguquki futhi kunciphise ingozi yokuqhekeka.
ukushintsha kwezinga lokushisa
Ukushintshashintsha kwezinga lokushisa okwedlulele kungabangela ukunwebeka kwe-stucco futhi kunciphe, kudale ukungezwani okungaholela ekuqhekekeni.Ukusetshenziswa kwezithasiselo ze-HPMC kunciphisa izinga lokuhwamuka kwamanzi, ngaleyo ndlela kunciphisa inqubo yokuphulukisa futhi kunciphise ingozi yokwanda ngokushesha okushisayo.Uma ukhonkolo woma ngokulinganayo, kunciphisa amathuba okuba izindawo ezisendaweni zome kakhulu, okudala ukungezwani okungaholela ekuqhekekeni.
Isikhathi sokwelashwa esinganele
Mhlawumbe into ebaluleke kakhulu ekuqhekekeni kwe-plaster isikhathi esinganele sokuphulukisa.Izithasiselo ze-HPMC zibambezela ukukhishwa kwamanzi kungxube ye-gypsum, ngaleyo ndlela zelule isikhathi sokusetha.Izikhathi ezinde zokuphulukisa zithuthukisa ukuhambisana kwe-stucco futhi zinciphise ukubukeka kwamabala abuthakathaka angase aqhekeke.Ukwengeza, izithasiselo ze-HPMC zisiza ukudala umgoqo ngokumelene nezimo zezulu ezimbi kakhulu ezingabangela imifantu ezindaweni eziveziwe.
Ekuphetheni
Ukuqhekeka kwe-stucco kuvamile embonini yezokwakha futhi kungaholela ekulungiseni okubizayo kanye nezisihla ezingabukeki.Nakuba kunezici eziningi ezingabangela ukuqhekeka ku-plaster, ukusebenzisa izithasiselo ze-HPMC kuyisixazululo esisebenzayo sokuvimbela imifantu.Umsebenzi wezithasiselo ze-HPMC uwukwenza umgoqo ovimbela ukuhwamuka ngokweqile komswakama futhi unciphise ukushwabana okomisa kanye nokwanda kokushisa.Lezi zithako zibuye zithuthukise ukusebenza, okuholela ekubeni namandla angashintshi kanye nekhwalithi engcono ye-plaster.Ngokungeza izithasiselo ze-HPMC kumamiksi esamende, abakhi bangaqinisekisa indawo ehlala isikhathi eside, ebukekayo.
Isikhathi sokuthumela: Sep-26-2023