Ama-cellulose ethers, njengei-methyl cellulose (MC),i-hydroxyethyl cellulose (HEC),i-hydroxypropyl methyl cellulose (HPMC), futhii-carboxymethyl cellulose (CMC), zisetshenziswa kakhulu njengezithasiselo ekwakhiweni kodaka ngenxa yekhono lazo eliyingqayizivele lokuthuthukisa ukusebenza kahle, ukugcinwa kwamanzi, nokunamathela. Lezi zakhiwo zibalulekile ekukhiqizeni udaka lwezinga eliphezulu lokulwa nokuqhekeka, udaka olukhonkolo, nodaka lwamatshe, ngalunye olunezinjongo ezihlukene zokwakha. Inani le-cellulose ether elifakwe odakeni lincike ekusebenzeni okufunayo kanye nesimo esithile sokusetshenziswa.
Ithebula 1: Okuqukethwe kwe-Cellulose Ether Ezimoyeni Ezihlukahlukene
| Uhlobo Lodaka | Umsebenzi Oyinhloko | Okuqukethwe kwe-Cellulose Ether | Umthelela we-Cellulose Ether |
| I-Anti-Crack Mortar | Ivimbela ukuqhekeka ngenxa yokuncipha noma ingcindezi | 0.2% - 0.5% ngesisindo | Ithuthukisa ukusebenza, ikhuphule ukugcinwa kwamanzi, futhi ithuthukise ukunamathela. Yehlisa ukuqhekeka ngesikhathi sokwelashwa. |
| I-Plaster Mortar | Isetshenziselwa ukumboza izindonga noma uphahla | 0.3% - 0.8% ngesisindo | Ithuthukisa ukusetshenziswa kalula, ithuthukisa ukunamathela kuma-substrates, futhi yandise isikhathi sokuvula. |
| I-Masonry Mortar | Isetshenziselwa ukubeka izitini noma amatshe | 0.1% - 0.3% ngesisindo | Ithuthukisa ukusebenza, ivimbele ukuhlukaniswa, futhi ithuthukise ukuhlangana. |
1.I-Anti-Crack Mortar:
I-anti-crack mortar yakhiwe ngokuqondile ukuze kuncishiswe ukwakheka kwemifantu ngesikhathi sokuphulukisa kanye nezigaba zokuqina zodaka. Le mifantu ingenzeka ngenxa yezici ezifana nokuncipha, ukwanda kokushisa, noma izingcindezi zangaphandle. Ama-cellulose ether abalulekile ekuvimbeleni izinkinga ezinjalo ngokukhulisa ukuguquguquka kodaka nokugcinwa kwamanzi. Okuqukethwe kwe-cellulose ether okujwayelekile kodaka lwe-anti-crack kusuka phakathi kuka-0.2% kuya ku-0.5% ngesisindo.
Imisebenzi ye-Cellulose Ether ku-Anti-Crack Mortar:
Ukugcina Amanzi: I-cellulose ether isiza ekugcineni amanzi kungxube yodaka, okunciphisa inqubo yokuhwamuka futhi iqinisekise izinga lokuphulukisa elihamba kancane, elilawulwayo. Lokhu kunciphisa amathuba okuqhekeka kwendawo ngenxa yokoma ngokushesha.
Ukusebenza Okuthuthukisiwe: Ukwengezwa kwe-cellulose ether kuthuthukisa ukuhambisana kodaka, okwenza kube lula ukusebenzisa nokusabalalisa. Lokhu kubangela isiphetho esibushelelezi.
I-Crack Resistance: Ngokuguqula izakhiwo ze-rheological zodaka, i-cellulose ethers ifaka isandla ekuxubeni okulinganayo, ukunciphisa ukuvela kwemifantu ye-shrinkage ngesikhathi sesigaba sokuqina.
Kulolu hlelo lokusebenza, indima ye-cellulose ether ayisebenzi nje kuphela kodwa futhi nesakhiwo, esiza ukuthuthukisa ukuqina okuphelele nokuphila isikhathi eside kodaka.
2.Udaka lwePlaster:
Udaka lwe-plaster lusetshenziselwa ukumboza izindawo ezifana nezindonga nophahla. Iklanyelwe ukunikeza isiphetho esibushelelezi futhi idale indawo ehlala isikhathi eside yokuhlobisa noma ukuvikelwa okwengeziwe. Ama-cellulose ether ajwayele ukufakwa osimende olwakhiwe ngamanani asukela ku-0.3% kuya ku-0.8% ngesisindo, kuye ngezici zohlelo olufunekayo.
Imisebenzi ye-Cellulose Ether ku-Plaster Mortar:
Ukunamathela: Udaka lwepulasi ludinga izici eziqinile zokunamathela ukuze kuqinisekiswe ukuthi zibophana ngokufanele ku-substrate engaphansi, kungakhathaliseki ukuthi yisitini, ukhonkolo, noma i-gypsum. I-cellulose ether isiza ukuthuthukisa lokhu kubopha.
Ukusebenziseka: Ukwengeza i-cellulose ether kwandisa ipulasitiki yodaka, okwenza kube lula ukuyisebenzisa kahle. Isiza ama-plasterers afinyelele inhlawulo, ngisho nendawo ngaphandle komzamo omkhulu.
Isikhathi sokuvula: Isikhathi esivuliwe noma isikhathi sokusebenza sodaka lukakhonkolo sisho ukuthi udaka luhlala isikhathi esingakanani lusebenza ngemva kokuba lusetshenzisiwe. Ama-cellulose ether asiza ukukhulisa isikhathi esivulekile, okuvumela isikhathi esengeziwe sokulungisa nokushelela okungaphezulu ngaphambi kokuthi kuqine.
Ukugcina Amanzi: Ngokufanayo ne-anti-crack mortar, i-cellulose ether isiza ekugcineni amanzi, esiza ekufakweni kahle kwe-binder, ngaleyo ndlela ikhuthaze ukwakheka kwendawo ehlala isikhathi eside, eqinile.
Ngodaka olusimende, ama-cellulose ethers abalulekile kukho kokubili ukusebenza kanye nekhwalithi yokuqeda. Baqinisekisa ukuthi udaka luhlala lusebenza isikhathi eside, lusiza abapulasi basebenzise okokusebenza ngempumelelo, ngisho nasezindaweni ezinkudlwana.
3.I-Masonry Mortar:
Udaka lwamatshe lusetshenziselwa ngokuyinhloko ukuhlanganisa izitini, amatshe, noma amabhlogo ndawonye. Indima yayo ukudala isibopho esiqinile, esihlala njalo esiqinisekisa ubuqotho besakhiwo sezindonga nezinye izakhi zamatshe. Okuqukethwe kwe-cellulose ether odakeni lwamatshe ngokuvamile kuphansi, kusukela ku-0.1% kuya ku-0.3% ngesisindo, njengoba into eyinhloko ekukhathazayo kulokhu kwakhiwa amandla nokunamathela kunokusebenza noma ukugcinwa kwamanzi.
Imisebenzi ye-Cellulose Ether ku-Masonry Mortar:
Ukusebenziseka: Nakuba udaka lwamatshe luklanyelwe ukuthi luqine, ludinga futhi ukusebenza ngokwanele ukuze kuqinisekiswe ukusetshenziswa kalula, ikakhulukazi lapho ubeka izitini noma amatshe. Ama-cellulose ethers athuthukisa ukugeleza kodaka ngaphandle kokuphazamisa amandla alo.
Ukuvimbela Ukuhlukaniswa: Ezinhlelweni zokwakhiwa kwamatshe, ikakhulukazi ngama-aggregate amaholo noma osayizi bezinhlayiyana ezinkulu, ukuhlukaniswa (ukuhlukaniswa kwezinhlayiya ezinhle kakhulu kwezingamaholoholo) kungaba yinkinga. Ama-cellulose ethers asiza ukugcina umfaniswano wengxube, uqinisekisa ikhwalithi engaguquki nokusebenza.
Ukuhlanganisa nokunamathela: Ukubambisana okuqinile kubalulekile ukuze udaka lwamatshe ukuze lubambe amayunithi amatshe ndawonye. Ama-cellulose ethers asiza ekuhlinzekeni ukunamathela okudingekile ngaphandle kwesidingo sokuqukethwe kwamanzi amaningi, okungase kwenze ingxube ibe buthaka.
Ukumelana Nokuncipha: Nakuba kungabalulekile kangako odakeni lwamatshe kunasekwenziweni kwe-anti-crack, i-cellulose ether isadlala indima ekulawuleni ukuncipha, ikakhulukazi ngesikhathi sokwelapha, okungase kubeke engcupheni amandla nobuqotho bamalunga amatshe.
Nakuba okuqukethwe kwe-cellulose ether odakeni lwamatshe kuphansi kunakwezinye izinsika, umthelela wawo ekusebenzeni nasekusebenzeni kodaka zisabalulekile. Iqinisekisa ukuthi udaka luhlala lulula ukusebenzisa ngenkathi kugcinwa izakhiwo ezidingekayo zokubopha.
Ama-cellulose ethersziyizithasiselo ezibalulekile ku-anti-crack, ukhonkolo, nodaka lwamatshe, ezidlala indima ebalulekile ekuthuthukiseni ukusebenza kahle, ukugcinwa kwamanzi, ukunamathela, nokumelana nokuqhekeka. Okuqukethwe okuqondile kwe-cellulose ether kuyahlukahluka kuye ngohlobo lodaka kanye nokusebenza okuhlosiwe. Ama-anti-crack mortars ngokuvamile aqukethe ukugxila okuphezulu kwama-cellulose ethers (0.2% kuya ku-0.5%) ukuthuthukisa ukuguquguquka nokuvimbela ukuqhekeka. Ama-plaster mortars adinga ibhalansi yokusebenza nokunamathela, okuqukethwe kwe-cellulose ether ngokuvamile kusuka ku-0.3% kuya ku-0.8%. Ezisikeni zamatshe, okuqukethwe ngokuvamile kuphansi (0.1% kuya ku-0.3%) kodwa kusabalulekile ekusebenzeni nokungaguquguquki okufanayo.
Njengoba izindinganiso zokwakha zishintsha futhi isidingo sezinto ezihlala isikhathi eside, ezisebenza kahle kakhulu zikhula, indima ye-cellulose ethers emazingeni okwakha izoqhubeka nokukhula, inikeze izixazululo ezisebenza kahle nezisimeme ezinseleleni ezivamile ezibhekene nemboni.
Isikhathi sokuthumela: Feb-15-2025