Njengento evame ukusetshenziswa ezimbonini ezihlukahlukene, i-cellulose ether powder inokunamathela okuhle kakhulu, ukuqina nokugcinwa kwamanzi. Isetshenziswa kabanzi ekwakhiweni, kwezokwelapha, kwezimonyo, ekudleni nakweminye imikhakha eminingi. Kodwa-ke, ukuze uthole ukusebenza okuhle kakhulu ku-cellulose ether powders, kufanele kuqashelwe inqubo yayo yokuhlakazwa. Nazi ezinye izici ezibalulekile okufanele uzicabangele lapho uncibilikisa i-cellulose ether powder:
1. Khetha isincibilikisi esifanele
I-cellulose ether powder inyibilika kakhulu emanzini, yakha isixazululo esisobala, esine-viscous. Kodwa-ke, izinhlobo ezahlukene zama-cellulose ethers zinokuncibilika okuhlukile emanzini, futhi ukuncibilika kwazo kuzothintwa izici ezifana nezinga lokushisa ne-pH. Ngakho-ke, ukukhetha i-solvent efanele ukuze uthole imiphumela emihle kubalulekile.
Isibonelo, uma i-cellulose ether powder idinga ukuchithwa endaweni yokushisa ephansi noma ohlelweni oluphansi lwe-pH, i-hydroxypropylmethylcellulose (HPMC) noma i-methylcellulose (MC) ingaba ngcono kune-ethylcellulose (EC) noma i-carboxylate Better Choice Methylcellulose (CMC). Kubalulekile ukukhetha i-solvent efanele ngokucabangela izidingo zohlelo lokusebenza kanye nezakhiwo ze-solvent.
2. Lawula izinga lokushisa
Ukushisa kungenye into ebalulekile ethinta ukuqedwa kwe-cellulose ether powder. Ukunyibilika kwama-cellulose ethers kukhuphuka ngezinga lokushisa, kodwa kanjalo nezinga lokuncibilika, elingaholela kuma-agglomerated noma ama-agglomerated powders. Ngakho-ke, izinga lokushisa kufanele lilawulwe ngokucophelela phakathi nenqubo yokuhlakazwa.
Ngokuvamile, izinga lokushisa elilungile lokuncibilikisa i-cellulose ether ngu-20-40°C. Uma izinga lokushisa liphansi kakhulu, kungase kudingeke ukwandisa isikhathi sokuchithwa noma ukusebenzisa i-solvent efanelekile. Uma izinga lokushisa liphezulu kakhulu, lingabangela ukuwohloka kwe-cellulose ether futhi kuthinte ukusebenza kwayo.
3. Hlanganisa futhi ugovuze
Ukunyakazisa nokuyaluza nakho kubalulekile lapho kuncibilikiswa impushana ye-cellulose ether. Ukuyaluza okufanele kusiza impushana ukuthi ihlakazeke ngokulinganayo ku-solvent futhi ivimbele ukunqwabelana. Ukugqugquzela futhi kusiza ukwandisa izinga lokuqedwa, ikakhulukazi izixazululo ze-viscosity eziphezulu.
Nokho, ukuyaluza ngokweqile kungase kukhiqize amabhamuza omoya noma igwebu, okungase kuthinte ukucaca nokuzinza kwesixazululo. Ngakho-ke, kuyadingeka ukulungisa isivinini esishukumisayo nokuqina ngokuvumelana nezidingo ezithile kanye nemvelo yokusetshenziswa kwe-cellulose ether powder.
4. Izithasiselo
Izithasiselo zingangezwa ngesikhathi sokuchithwa kwe-cellulose ether powder ukuze kuthuthukiswe ukusebenza kwayo noma ukuzinza. Isibonelo, i-borax noma ezinye izinto ze-alkali zingangezwa ukulungisa i-pH yesisombululo futhi kwandiswe i-viscosity. I-sodium bicarbonate iphinde ikhulise i-viscosity yesisombululo, ibambezele izinga lokuqedwa.
Ezinye izithasiselo ezifana nama-surfactants, usawoti noma ama-polymers zingasetshenziswa ukuthuthukisa ukunyibilika, ukuzinza noma ezinye izici zesixazululo se-cellulose ether. Kodwa-ke, kubalulekile ukusebenzisa izithasiselo ngokulinganisela futhi ukhethe ngokucophelela, njengoba izithasiselo ezidlulele noma ezingafaneleki zingabangela imiphumela emibi engadingeki.
5. Ukuqedwa kwesikhathi
Isikhathi sokuchithwa siyipharamitha ebalulekile ekukhiqizeni nasekusetshenzisweni kwe-cellulose ether powder. Isikhathi sokuchithwa sincike ezintweni eziningi ezifana nohlobo lwe-cellulose ether, i-solvent, izinga lokushisa, isivinini esishukumisayo nokugxila.
Ngokuvamile, i-cellulose ether powder kufanele yengezwe ku-solvent kancane kancane futhi kancane kancane ngokuxuba njalo kuze kutholakale isisombululo se-homogeneous. Izikhathi zokuhlakazeka zingahluka ukusuka emaminithini ambalwa ukuya emahoreni ambalwa, kuye ngezinto ezishiwo ngenhla.
Kubalulekile ukuqapha ngokucophelela inqubo yokuhlakazeka futhi ulungise imingcele njengoba kudingeka ukuze uqinisekise ikhwalithi nokuvumelana kwesisombululo se-cellulose ether.
Sengiphetha, i-cellulose ether powder iyinto eguquguqukayo futhi ebalulekile emikhakheni ehlukahlukene yezimboni. Nokho, inqubo yokuhlakaza ibalulekile ukuze kuzuzwe ukusebenza kwayo okuhle. Ngokunaka izici ezinjengokukhethwa kwezincibilikizo, ukulawulwa kwezinga lokushisa, ukunyakazisa, izithasiselo, nesikhathi sokuhlakazwa, kungenzeka ukuthola isisombululo sekhwalithi ephezulu se-cellulose ether esihlangabezana nezidingo zohlelo lokusebenza.
Isikhathi sokuthumela: Aug-18-2023