Ku-mortar eyomile, i-cellulose ether iyisengezo esiyinhloko esingathuthukisa kakhulu ukusebenza kwe-mortar emanzi futhi sithinte ukusebenza kokwakhiwa kwe-mortar. I-Methyl cellulose ether idlala indima yokugcina amanzi, ukuqina, kanye nokuthuthukiswa kokusebenza kokwakhiwa. Ukusebenza okuhle kokugcinwa kwamanzi kuqinisekisa ukuthi i-mortar ngeke ibangele ukusantiwa, ukufuthwa kanye nokuncipha kwamandla ngenxa yokuntuleka kwamanzi kanye nokungapheleli komswakama we-cement; umphumela wokuqina Amandla esakhiwo se-mortar emanzi anda kakhulu, futhi ukwengezwa kwe-methyl cellulose ether kungathuthukisa kakhulu i-viscosity emanzi ye-mortar emanzi, futhi kunokunamathela okuhle kuma-substrate ahlukahlukene, ngaleyo ndlela kuthuthukiswe ukusebenza kwe-mortar emanzi odongeni futhi kuncishiswe imfucuza; ngaphezu kwalokho, okuhlukile Indima ye-cellulose emikhiqizweni nayo ihlukile, isibonelo: i-cellulose kuma-adhesive ethayela ingandisa isikhathi sokuvula futhi ilungise isikhathi; i-cellulose ku-mortar yokufafaza ngomshini ingathuthukisa amandla esakhiwo se-mortar emanzi; ekuzilinganiseni, i-cellulose idlala indima ekuvimbeleni ukuhlaliswa, ukuhlukaniswa kanye nokuhlukaniswa.
Ukukhiqizwa kwe-cellulose ether kwenziwa kakhulu ngemicu yemvelo ngokusebenzisa ukuncibilika kwe-alkali, ukusabela kokuxhunyelelwa (i-etherification), ukuwasha, ukomisa, ukugaya nezinye izinqubo. Izinto eziyinhloko zokusetshenziswa kwemicu yemvelo zingahlukaniswa zibe: i-cotton fiber, i-cedar fiber, i-beech fiber, njll. Izinga labo le-polymerization lihlukile, okuzothinta i-viscosity yokugcina yemikhiqizo yabo. Njengamanje, abakhiqizi abakhulu be-cellulose basebenzisa i-cotton fiber (umkhiqizo we-nitrocellulose) njengezinto eziyinhloko zokusetshenziswa. Ama-cellulose ether angahlukaniswa abe yi-ionic kanye ne-non-ionic. Uhlobo lwe-ionic luhlanganisa kakhulu usawoti we-carboxymethyl cellulose, kanti uhlobo olungeyona i-ionic luhlanganisa kakhulu i-methyl cellulose, i-methyl hydroxyethyl (propyl) cellulose, kanye ne-hydroxyethyl cellulose. I-Su njalo njalo. Ku-dry powder mortar, ngoba i-ionic cellulose (carboxymethyl cellulose salt) ayizinzile uma kukhona ama-calcium ions, ayisetshenziswa kakhulu emikhiqizweni ye-dry powder efana ne-cement slaked lime njengezinto zokusetshenziswa kwe-cementitious.
Ukugcinwa kwamanzi kwe-cellulose kuhlobene nokushisa okusetshenzisiwe. Ukugcinwa kwamanzi kwe-methyl cellulose ether kuncipha ngokwanda kwezinga lokushisa. Isibonelo, ehlobo, lapho kukhona ukukhanya kwelanga, i-wall putty yangaphandle iyafakwa ngeplasta, okuvame ukusheshisa ukuqiniswa kwesamente nodaka. Ukuqina kanye nokwehla kwezinga lokugcina amanzi kuholela emzwelweni osobala wokuthi kokubili ukusebenza kokwakhiwa kanye nokusebenza kokulwa nokuqhekeka kuyathinteka. Kulesi simo, kubaluleke kakhulu ukunciphisa ithonya lezici zokushisa. Ngezinye izikhathi ayikwazi ukuhlangabezana nezidingo zokusetshenziswa. Ezinye izindlela zokwelapha zenziwa ku-cellulose, njengokwandisa izinga le-etherification, njll., ukuze umphumela wokugcina amanzi usakwazi ukugcina umphumela ongcono ekushiseni okuphezulu.
Ukugcinwa kwamanzi kwe-cellulose: Izici eziyinhloko ezithinta ukugcinwa kwamanzi kwe-mortar zifaka phakathi inani le-cellulose elingeziwe, i-viscosity ye-cellulose, ubuncane be-cellulose, kanye nokushisa kwendawo yokusebenza.
Ukuqina kwe-cellulose: Ngokuvamile, uma i-viscosity iphakeme, umphumela wokugcina amanzi uba ngcono, kodwa uma i-viscosity iphakeme, isisindo sama-molecule se-cellulose siba phezulu, kanye nokwehla okuhambisanayo kokuncibilika kwayo, okunomthelela omubi ekusebenzeni kokwakhiwa kanye namandla e-mortar. Uma i-viscosity iphakeme, umphumela wokujiya ubonakala kakhulu ku-mortar, kodwa awulingani ngokuqondile. Uma i-viscosity iphakeme, kulapho i-mortar emanzi izoba yinkimbinkimbi kakhulu. Ngesikhathi sokwakhiwa, izonamathela ku-scraper futhi inamathele kakhulu ku-substrate, kodwa ngeke isize kakhulu ukwandisa amandla esakhiwo se-mortar emanzi ngokwayo, futhi ukusebenza okulwa nokuwa ngeke kubonakale ngesikhathi sokwakhiwa.
Ubuncane be-cellulose: Ubuncane buthinta ukuncibilika kwe-cellulose ether. I-cellulose ecoarse ivame ukuba yi-granular futhi isakazeka kalula emanzini ngaphandle kokuhlanganiswa, kodwa izinga lokuncibilika lihamba kancane kakhulu. Ayifanele ukusetshenziswa ku-dry powder mortar. Ekhiqizwa ekhaya. Enye ye-cellulose iyabhidlika, akulula ukuyihlakaza nokuyincibilikisa emanzini, futhi kulula ukuyihlanganisa. I-powder encane ngokwanele kuphela engagwema ukuhlanganiswa kwe-methyl cellulose ether lapho ifaka amanzi futhi ixuba. Kodwa i-cellulose ether ejiyile ayigcini nje ngokuchitha kodwa futhi inciphisa amandla endawo e-mortar. Lapho i-dry powder mortar enjalo yakhiwa endaweni enkulu, ijubane lokupholisa le-mortar yendawo liyancishiswa ngokusobala, futhi kuvela imifantu ngenxa yezikhathi ezahlukene zokupholisa. Ngenxa yesikhathi esifushane sokuxuba, i-mortar enokwakhiwa kwemishini idinga ubuncane obukhulu.
Isikhathi sokuthunyelwe: Feb-13-2023