Odakeni olomile, i-cellulose ether iyisengezo esiyinhloko esingathuthukisa kakhulu ukusebenza kodaka olumanzi futhi sithinte ukusebenza kokwakhiwa kodaka.I-Methyl cellulose ether idlala indima yokugcina amanzi, ukuqina, kanye nokwenza ngcono ukusebenza kokwakhiwa.Ukusebenza kahle kokugcinwa kwamanzi kuqinisekisa ukuthi udaka ngeke lubangele ukugaywa kwesihlabathi, impushana kanye nokunciphisa amandla ngenxa yokushoda kwamanzi kanye nokungaphelele kukasimende;umphumela wokuqina Amandla esakhiwo sodaka olumanzi anda kakhulu, futhi ukufakwa kwe-methyl cellulose ether kungathuthukisa kakhulu i-viscosity emanzi yodaka olumanzi, futhi ibe nokunamathela okuhle kuma-substrates ahlukahlukene, ngaleyo ndlela kuthuthukisa ukusebenza kodaka olumanzi odongeni. kanye nokunciphisa imfucuza;ngaphezu kwalokho, okuhlukile Indima ye-cellulose emikhiqizweni nayo ihlukile, isibonelo: i-cellulose kuma-adhesives tile ingandisa isikhathi sokuvula futhi ilungise isikhathi;i-cellulose kudaka lokufafaza ngomshini ingathuthukisa amandla esakhiwo sodaka olumanzi;ekuzilinganiseni, i-cellulose idlala indima ekuvimbeleni ukuhlaliswa, Ukuhlukaniswa kanye nokuhlukaniswa.
Ukukhiqizwa kwe-cellulose ether kwenziwa ikakhulukazi ngemicu yemvelo ngokusebenzisa ukuchithwa kwe-alkali, ukusabela ngokuxhunyelelwa (i-etherification), ukugeza, ukomisa, ukugaya nezinye izinqubo.Izinto eziyinhloko zokusetshenziswa kwezintambo zemvelo zingahlukaniswa zibe: i-cotton fiber, i-cedar fiber, i-beech fiber, njll. Izinga labo le-polymerization lihlukile, elizothinta i-viscosity yokugcina yemikhiqizo yabo.Njengamanje, abakhiqizi abakhulu be-cellulose basebenzisa i-cotton fiber (umkhiqizo we-nitrocellulose) njengento eluhlaza eyinhloko.Ama-cellulose ether angahlukaniswa abe ionic kanye ne-non-ionic.Uhlobo lwe-ionic ikakhulukazi luhlanganisa usawoti we-carboxymethyl cellulose, kanti uhlobo olungezona i-ionic ikakhulukazi luhlanganisa i-methyl cellulose, i-methyl hydroxyethyl (propyl) cellulose, ne-hydroxyethyl cellulose.Su njalonjalo.Odakeni lwempushana eyomile, ngenxa yokuthi i-ionic cellulose (usawoti we-carboxymethyl cellulose) ayizinzile lapho kukhona ama-calcium ions, ayivamisile ukusetshenziswa emikhiqizweni yempushana eyomile efana nomcako owenziwe usimende njengezinto zikasimende.
Ukugcinwa kwamanzi kwe-cellulose nakho kuhlobene nezinga lokushisa elisetshenzisiwe.Ukugcinwa kwamanzi kwe-methyl cellulose ether kuncipha ngokunyuka kwezinga lokushisa.Isibonelo, ehlobo, lapho kunokukhanya kwelanga, i-putty yangaphandle yodonga ifakwe, evame ukusheshisa ukuphulukiswa kukasimende nodaka.Ukuqina nokuncipha kwezinga lokugcinwa kwamanzi kuholela emuzweni osobala wokuthi kokubili ukusebenza kokwakha kanye nokusebenza kokulwa nokuqhekeka kuyathinteka.Kulokhu, kubaluleke kakhulu ukunciphisa umthelela wezici zokushisa.Kwesinye isikhathi ayikwazi ukuhlangabezana nezidingo zokusetshenziswa.Okunye ukwelapha kwenziwa ku-cellulose, njengokwandisa izinga le-etherification, njll., ukuze umphumela wokugcina amanzi usengakwazi ukugcina umphumela ongcono ezingeni lokushisa eliphezulu.
Ukugcinwa kwamanzi kwe-cellulose: Izici eziyinhloko ezithinta ukugcinwa kwamanzi odaka zihlanganisa inani le-cellulose elengeziwe, i-viscosity ye-cellulose, ukuqina kwe-cellulose, kanye nezinga lokushisa lendawo yokusebenza.
I-viscosity ye-cellulose: Ngokuvamile, ukuphakama kwe-viscosity, umphumela wokugcina amanzi ungcono, kodwa lapho i-viscosity iphakama, isisindo se-cellulose siyakhuphuka, kanye nokuncipha okuhambisanayo kokuncibilika kwayo, okunomthelela omubi ekusebenzeni kokwakhiwa. namandla odaka .Ukuphakama kwe-viscosity, kusobala kakhulu umphumela wokuqina odongeni, kodwa awulingani ngokuqondile.Ukuphakama kwe-viscosity, i-viscous yodaka olumanzi luyoba lukhulu.Ngesikhathi sokwakhiwa, izonamathela ku-scraper futhi ibe nokunamathela okuphezulu ku-substrate, kodwa ngeke kusize kakhulu ukwandisa amandla esakhiwo sodaka olumanzi ngokwayo, futhi ukusebenza kwe-anti-sag ngeke kubonakale ngesikhathi sokwakhiwa.
Ubucwebe be-cellulose: Ukucoleka kuthinta ukunyibilika kwe-cellulose ether.I-cellulose eqinile ivamise ukuba yimbudumbudu futhi ihlakazeke kalula emanzini ngaphandle kokuhlanganiswa, kodwa izinga lokuhlakazeka lihamba kancane kakhulu.Ayifanele ukusetshenziswa odakeni lwempuphu eyomile.Ekhiqizwa ekhaya Enye ye-cellulose i-flocculent, akulula ukuyihlakaza nokuhlakazeka emanzini, futhi kulula ukuyihlanganisa.Impushana ecolekile kuphela eyanele engagwema i-methyl cellulose ether agglomeration lapho wengeza amanzi futhi ushukumisa.Kodwa ugqinsi lwe-cellulose ether alugcini nje ngokumosha kodwa futhi lunciphisa amandla endawo odaka.Lapho udaka olunjalo lwempushana olomile lwakhiwe endaweni enkulu, isivinini sokuphulukisa sodaka lwendawo siyancishiswa, futhi kuvela imifantu ngenxa yezikhathi ezihlukene zokuphulukisa.Ngenxa yesikhathi esifushane sokuxuba, udaka olunokwakhiwa kwemishini ludinga ukucoliseka okuphezulu.
Isikhathi sokuthumela: Feb-13-2023