Eminyakeni yamuva nje, ngokusetshenziswa kancane kancane kwezinqubomgomo ezifanele zokunamathela emcabangweni wokuthuthukiswa kwezesayensi nokwakha umphakathi ozosindisa izinsizakusebenza, udaka lwezwe lwami lubhekene nohlobo oluvela kudaka lwendabuko kodaka olomile, nokwakha okuxutshwe Umkhakha weDitar ungenile ekuthuthukisweni okusheshayo. umkhondo we. Njengokuphikisana okubaluleke kakhulu ekwakheni imikhiqizo yodaka eyomile ehlanganisiwe, i-ether ye-cellulose idlala indima ebalulekile ekusebenzeni nasezindleko zodaka oluxutshwe. Kunezinhlobo ezimbili ze-cellulose testers: munye i-ionic, njenge-sodium carboxymethyl cellulose (CMC), kanti enye ayilona i-methylyllose, njenge-hpdroxyprosel cellulose (HPMC), njll . Njengamanje, iningi lemikhiqizo ye-ether yomhlaba ether ye-Global Cellulose isetshenziswa ezintweni zokwakha. Ngokuthuthuka okusheshayo kwemboni yodaka eyomile ehlanganisiwe, i-cellulose ether yezwe lami itholakale ngokuyisisekelo kwasendaweni, futhi isimo semikhiqizo yakwamanye amazwe silawulwa imakethe sephukile. Ngokuthandwa okukhulayo kokusetshenziswa kwemikhiqizo yodaka eyomile exutshwe, izwe lami lizoba ngumkhiqizi omkhulu kakhulu emhlabeni wodaka oluxutshwe, ukusetshenziswa kwalo kanye nabakhiqizi bayo nezinhlobonhlobo zomkhiqizo nakho kuzokwanda. Ukusebenza komkhiqizo we-cellulose ether ngodaka oluhlanganisiwe olomile sekugxile kakhulu kwabakhiqizi nabasebenzisi.
Impahla ebaluleke kakhulu ye-cellulose ether ukugcinwa kwamanzi ezintweni zokwakha. Ngaphandle kokungezwa kwe-cellulose ether, ungqimba omncane wodaka olusha omile ngokushesha kangangokuba usimende ungakwazi ukunqwabelanisa ngendlela ejwayelekile futhi udaka alunakuqina futhi uzuze ukubumbana okuhle. Ngasikhathi sinye, ukungezwa kwe-cellulose ether kwenza udaka abe nepulasitiki enhle nokuvumelana nezimo, futhi athuthukise amandla okubopha ngodaka. Ake sixoxe ngomthelela ekusetshenzisweni kodaka oluxutshwe nodaka olulodwa kusuka ekusebenzeni komkhiqizo we-cellulose ether.
1. Ubumsulwa be-cellulose ether
Ubumsulwa be-cellulose ether buthinta i-solubility yalo. Isibonelo, ukwehlisa ubumsulwa be-ether ye-cellulose, ngokushesha kuyancibilika emanzini kanye nokwenza ngcono ukusebenza kokugcinwa kwamanzi. Ngakho-ke, ubumsulwa be-cellulose ether kufanele bufakwe njengenye yezindawo zayo zokuphenya. Ngokuvamile, okusalayo kwe-subsion ye-cellulose eTher Finess kudlula u-0.212mm akufanele kudlule u-8.0%.
2. Ukomisa Isilinganiso Sokunciphisa Isisindo
Izinga lokulahleka kwesisindo elomile lisho amaphesenti esisindo sezinto ezilahlekile kunqwaba yesampula yasekuqaleni lapho kumiswa khona amazinga okushisa athile. Ikhwalithi ethile ye-cellulose ether, izinga lokunciphisa isisindo liphezulu kakhulu, elizonciphisa okuqukethwe kwezithako ezisebenzayo eCellulose Ether, lithinte umphumela wohlelo lokusebenza lwamabhizinisi aphansi, futhi andise izindleko zokuthenga. Imvamisa, ukulahlekelwa kwesisindo emgodini we-cellulose ether akuyona ngaphezulu kuka-6.0%.
3. I-Sulfate Ash okuqukethwe kwe-cellulose ether
Ikhwalithi ethile ye-cellulose ether, okuqukethwe kwe-Ash kuphezulu kakhulu, okuzokwehlisa okuqukethwe kwezithako ezisebenzayo ku-cellulose ether futhi kuthinte umphumela wohlelo lokusebenza lwamabhizinisi aphansi. Okuqukethwe kwe-ash sulfate ye-cellulose ether kuyindlela ebalulekile yokusebenza kwayo. Kuhlanganiswe nesimo sokukhiqizwa esikhona samanje sabakhiqizi be-cellulose ether be-cellulose ekhona, imvamisa okuqukethwe kwe-ASH, i-HPMC, i-hemc akufanele idlule ama-2,5%, kanye nokuqukethwe komlotha we-HEC Cellulose ETER akufanele kudlule i-10.0%.
4. Ukuvunywa kwe-cellulose ether
Ukugcinwa kwamanzi kanye nomphumela wokuqina we-cellulose ether ikakhulukazi kuncike ekubonakaleni kanye nomthamo we-cellulose ether ngokwako kungezwe ku-slurry kasimende.
I-5 Ivelu ye-PH ye-Cellulose Ether
I-viscosity ye-cellulose ether imikhiqizo izokwehla kancane ngemuva kokugcinwa emazingeni okushisa aphezulu noma isikhathi eside, ikakhulukazi imikhiqizo ephezulu, ngakho-ke kuyadingeka ukukhawulela i-PH. Ngokuvamile, kungakuhle ukulawula ububanzi be-PH be-Cellulose Ether kuya ku-5-9.
6. Ukukhanya okukhanyayo kwe-cellulose ether
Ukudluliselwa kokukhanya kwe-cellulose ether kuthinta ngqo umphumela wohlelo lokusebenza ezintweni zokwakha. Izici eziphambili ezithinta ukudluliselwa kokukhanya kwe-cellulose ether yile: (1) ikhwalithi yezinto zokusetshenziswa; (2) Umphumela we-alkalization; (3) Isilinganiso senqubo; (4) Isilinganiso solvent; (5) umphumela wokungathathi hlangothi.
Ngokomphumela wokusetshenziswa, ukudluliselwa okukhanyayo kwe-cellulose ether akufanele kube ngaphansi kwama-80%.
7. Izinga lokushisa le-gel le-cellulose ether
I-Celsulose Ether isetshenziswa ikakhulukazi njenge-viscosifier, i-ejenti yepulasitiki kanye ne-ejenti yokugcina amanzi emikhiqizweni kasimende, ngakho-ke ukubonwa kwendlela yokuhlola i-gel kuyizindlela ezibalulekile zokubonisa ikhwalithi yekhwalithi ye-cellulose ether. Ukushisa kwe-gel kusetshenziselwa ukuthola uhlobo lwe-cellulose ether, oluhlobene nezinga lokufaka esikhundleni se-cellulose ether. Ngaphezu kwalokho, usawoti nokungcola kungathinta futhi izinga lokushisa le-gel. Lapho amazinga okushisa esixazululo akhuphuka, i-cellulose polymer ilahlekelwa kancane kancane amanzi, futhi ukubonwa kwesixazululo kuyancipha. Lapho iphuzu le-gel lifinyelelwa, i-polymer ihlukunyezwa ngokuphelele futhi yakha ijeli. Ngakho-ke, emikhiqizweni kasimende, izinga lokushisa livame ukulawulwa ngezansi kokushisa kwe-gel lokushisa kokuqala. Ngaphansi kwalesi simo, okwehlise izinga lokushisa, ukukhuphuka okubonakalayo, kanye nokusobala okusobala komphumela wokuqina nokugcinwa kwamanzi.
Isikhathi sePosi: Feb-27-2023