Ku-fortar eyomile, i-cellulose ether yisengezo esikhulu esingathuthukisa kakhulu ukusebenza ngodaka olumanzi futhi luthinte ukusebenza kodaka. I-methyl cellulose ether idlala indima yokugcinwa kwamanzi, ukuqina kanye nokwenza ngcono ukusebenza kokwakha. Ukusebenza okuhle kokugcina amanzi kuqinisekisa ukuthi udaka ngeke lubangele i-sanding, i-pofping kanye nokuncishiswa kwamandla ngenxa yokushoda kwamanzi kanye nokushoda kosimende ongaphelele; Ukuqina komzimba Amandla wesakhiwo sodaka olumanzi akhuphuke kakhulu, futhi ukungezwa kwe-methyl cellulose ether kungathuthukisa kakhulu ukubonwa okumanzi kodaka olumanzi, futhi kunesibalo esihle kuma-substrate ahlukahlukene, futhi uthuthukise ukusebenza kodaka olumanzi odongeni kanye nokunciphisa imfucuza; Ngaphezu kwalokho, iqhaza elihlukile le-cellulose emikhiqizweni futhi lihlukile, ngokwesibonelo: I-cellulose kuma-tile anama-adhesives ingakhulisa isikhathi sokuvula futhi ilungise isikhathi; I-cellulose ku-mechanic fafaza udaka ingathuthukisa amandla wesakhiwo sodaka olumanzi; Esikhathini sokuzenzisa, i-cellulose idlala indima ekuvikeleni indawo yokuhlala, ukuhlukaniswa kanye nokuqina.
Ukukhiqizwa kwe-cellulose ether kwenziwa ikakhulukazi ngemicu yemvelo ngokuchithwa kwe-alkali, ukuhanjiswa ngokuxhunyelelwa (ukugeza), ukugeza, ukomisa, ukugaya nezinye izinqubo. Izinto zokusetshenziswa eziphambili zemicu yemvelo zingahlukaniswa: ikotoni fiber, i-fiber ye-cedar, i-becy fiber, njll. Isilinganiso sabo se-polymerization sehlukile, esizothinta ukubonana kokugcina kwemikhiqizo yabo. Njengamanje, abakhiqizi abaningi be-cellulose basebenzisa i-Cotton fiber (umkhiqizo we-nitrocellulose) njengento ebalulekile eluhlaza. I-Cellulose Afers ingahlukaniswa nge-Ionic ne-Non-ionic. Uhlobo lwe-Ionic ikakhulukazi luhlanganisa usawoti we-carboxymethylwoose usawoti, futhi uhlobo olungewona iqiniso ikakhulukazi luhlanganisa i-methyl cellulose, i-methyl hydroxyethyls (i-hydroxyethyl cellulose. Su nokunye njalo. Ku-powder esomile, ngoba i-ionic cellulose (i-carboxymethyl pullulose usawoti) ayizinzile phambi kwe-calcium ions, akuvamile ukusetshenziswa emikhiqizweni eyomile ye-powder enjengesimende
Ukugcinwa kwamanzi kwe-cellulose kuhlobene nokushisa okusetshenzisiwe. Ukugcinwa kwamanzi kwe-methyl cellulose ether kuyancipha ngokwanda kokushisa. Isibonelo, ehlobo, lapho kukhona ukukhanya kwelanga, udonga lwangaphandle lubunjiwe, oluvame ukusheshisa ukwelashwa ngosimende nodaka. Ukuqina nokuncipha kwezinga lokugcinwa kwamanzi kuholela emvelweni osobala wokuthi zombili ukusebenza kokwakha kanye nokusebenza okulwa nokuqhekeka kuyathinteka. Kulokhu, kubaluleke kakhulu ukunciphisa ithonya lezinto zokushisa. Kwesinye isikhathi ayikwazi ukufeza izidingo zokusebenzisa. Ezinye izindlela zokwelashwa zenziwa etheluyeli, njengokukhuphula izinga lokuthezeka, njll., Ukuze umphumela wokugcina amanzi usengagcina umphumela ongcono emazingeni okushisa aphezulu.
Ukugcinwa kwamanzi kwe-cellulose: Izici eziyinhloko ezithinta ukugcinwa kwamanzi kodaka kufaka inani le-cellulose elingeziwe, ubuciko be-cellulose, ubuwula bendawo yokusebenza, kanye nokushisa kwendawo yokusebenza, kanye nokushisa kwendawo yokusebenza.
I-Viscosity ye-Cellulose: Ngokuvamile ikhuluma, ikhuphuka i-viscosity, ingcono ukugcinwa kwamanzi, kepha ikhuphuka kakhulu isisindo se-moleculantshi, kanye nokuncipha okuhambisanayo kwe-solubelity yayo, okunomthelela ongemuhle ekusebenzeni kwezokwakha namandla odaka. Lapho kuphakama i-viscosity, kusobala kakhulu umphumela wokuqina kudaka, kepha akayona ngokuqondile. Lapho esekhuphuka khona ukubonwa, okuzoba khona ngodaka olumanzi. Ngesikhathi sokwakha, kuzokunamathela ku-scrace futhi kube nokunamathelisa okuphezulu ku-substrate, kepha ngeke kusize kakhulu ukukhulisa amandla wesakhiwo sodaka olumanzi uqobo, futhi ukusebenza kwe-anti-sag ngeke kucace ngesikhathi sokwakha.
Ubumsulwa be-cellulose: Ubumsulwa buthinta i-solubility ye-cellulose ether. I-coarse cellulose imvamisa i-granular futhi ihlakazeke kalula emanzini ngaphandle kwe-agglomeration, kepha izinga lokuchithwa lihamba kancane. Akufanelekile ukusetshenziswa ku-powder owomile. Kukhiqizwe ama-cellulose athile amahle kakhulu, akulula ukuhlakazeka futhi kuncibilike emanzini, futhi kulula ukuwenza. Impuphu ezanele kuphela engavikela i-methyl cellulose ether agglomeration lapho engeza amanzi nokuvusa. Kepha i-ether enkulu ye-cellulose ayigcini nje ngokuchitheka kodwa futhi inciphisa amandla endawo odaka. Lapho kwakhiwa u-powder owomile endaweni enkulu, ijubane lokuphulukisa kodaka lwendawo liyancipha, futhi imifantu ngenxa yezikhathi ezihlukile zokwelapha zivela. Ngenxa yesikhathi esifushane sokuxuba, udaka ngokwakha imishini kudinga ubunzima obuphakeme.
Isikhathi sePosi: Feb-13-2023