I-Carboxymethyl cellulose (CMC) iyi-polymer encibilika emanzini evame ukusetshenziswa esetshenziswa ngezindlela ezahlukahlukene ezimbonini ezinjengokudla, ezemithi, izimonyo, nezindwangu.Ukuhlakaza i-CMC ngokuyikho kubalulekile ukuze isetshenziswe ngempumelelo kulezi zimboni.
Ukuqonda i-CMC:
I-Carboxymethyl cellulose itholakala ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo.Ikhiqizwa ukuguqulwa kwamakhemikhali e-cellulose ngokusungulwa kwamaqembu e-carboxymethyl esakhiweni sawo samangqamuzana.Lokhu kuguqulwa kunikeza ukuncibilika kwamanzi ku-cellulose, okwenza i-CMC ibe ukuqina okuhle kakhulu, isinzisi, nesilungisi se-rheology ezinhlelweni ezihlukene.
Izinto Ezithonya Ukuqedwa Kwe-CMC:
Izinga lokushisa: I-CMC incibilika kalula kakhulu emanzini ashisayo kunasemanzini abandayo.Ukwenyusa izinga lokushisa kusheshisa inqubo yokuqedwa ngenxa yokunyakaza kwamangqamuzana okuthuthukisiwe namandla e-kinetic.
Ukuyaluza: Ukunyakazisa noma ukuyaluza kusiza ukusakazeka kwezinhlayiya ze-CMC futhi kuthuthukisa ukusebenzisana kwazo nama-molecule amanzi, kusheshisa ukuqedwa.
i-pH: I-CMC izinzile kulo lonke uhla lwe-pH olubanzi;nokho, izimo ze-pH ezidlulele zingathinta ukuncibilika kwayo.Ngokuvamile, ukungathathi hlangothi kwezimo ze-pH ezine-alkali kancane kuthanda ukuhlakazeka kwe-CMC.
Usayizi Wezinhlayiyana: I-CMC egayiwe kahle incibilika ngokushesha kunezinhlayiya ezinkulu ngenxa yendawo engaphezulu etholakalayo yokusebenzisana namanzi.
Ukugxila: Ukugxila okuphezulu kwe-CMC kungadinga isikhathi esengeziwe namandla ukuze kuhlakazwe ngokuphelele.
Izindlela zokuqeda i-CMC:
1. Indlela Yamanzi Ashisayo:
Inqubo: Shisisa amanzi asondele abilayo (cishe ama-80-90 ° C).Faka kancane kancane i-CMC powder emanzini ngenkathi ugqugquzela njalo.Qhubeka ugqugquzela kuze kube yilapho i-CMC isihlakazwe ngokugcwele.
Izinzuzo: Amanzi ashisayo asheshisa ukuqedwa, anciphisa isikhathi esidingekayo ukuze kuhlanganiswe ngokuphelele.
Okucatshangwayo: Gwema amazinga okushisa eqile angehlisa noma aguqule izici ze-CMC.
2. Indlela Yamanzi Abandayo:
Inqubo: Nakuba ingasebenzi kahle njengendlela yamanzi ashisayo, i-CMC isengancibilika emanzini abandayo.Engeza i-CMC powder ekamelweni lokushisa noma emanzini abandayo bese ugoqa ngamandla.Vumela isikhathi esengeziwe sokuqedwa okuphelele uma kuqhathaniswa nendlela yamanzi ashisayo.
Izinzuzo: Ifanele izinhlelo zokusebenza lapho izinga lokushisa eliphezulu lingathandeki noma lingenakwenzeka.
Okucatshangwayo: Idinga isikhathi esiningi nokuyaluza uma kuqhathaniswa nendlela yamanzi ashisayo.
3. Indlela ye-Pre-hydration:
Inqubo: Hlanganisa ngaphambili i-CMC nenani elincane lamanzi ukuze wenze inhlama noma i-slurry.Uma i-CMC isihlakazekile ngokufana, kancane kancane yengeza lokhu kunamathisela emanzini amaningi ngenkathi ugoqa ngokuqhubekayo.
Izinzuzo: Iqinisekisa ngisho nokuhlakazwa kwezinhlayiya ze-CMC, ivimbela ukunqwabelana futhi ikhuthaze ukuhlakazeka okufanayo.
Okucatshangwayo: Idinga ukulawula ngokucophelela ukunamathela kokunamathisela ukuze kuvinjwe i-agglomeration.
4. Indlela yokungathathi hlangothi:
Inqubo: Chaza i-CMC emanzini ane-pH engathathi hlangothi noma ene-alkaline kancane.Lungisa i-pH usebenzisa i-asidi exutshiwe noma izixazululo ze-alkali ukuze uthuthukise ukunyibilika kwe-CMC.
Izinzuzo: Ukulungiswa kwe-pH kungathuthukisa ukunyibilika kwe-CMC, ikakhulukazi ekwakhekeni lapho i-pH idlala indima ebalulekile.
Okucatshangwayo: Idinga ukulawula okunembayo kwe-pH ukugwema imiphumela emibi kumkhiqizo wokugcina.
5. Indlela yokusiza ukuncibilika:
Inqubo: Nciphisa i-CMC kusincibilikisi sezinto eziphilayo esifanelekile njenge-ethanol noma i-isopropanol ngaphambi kokuyihlanganisa ohlelweni lwamanzi olufunekayo.
Izinzuzo: Izinyibilikisi ze-organic zingasiza ekuhlakazweni kwe-CMC, ikakhulukazi ezinsizeni lapho amanzi ewodwa enganele.
Okucatshangelwayo: Amazinga e-solvent ayinsalela kufanele aqashwe ngokucophelela ukuze kuqinisekiswe ukuhambisana nokuphepha nezindinganiso zokulawula.
Amathiphu Wokuqedwa Kwe-CMC Okuphumelelayo:
Sebenzisa Amanzi Ekhwalithi: Amanzi ekhwalithi ephezulu angenawo ukungcola angathuthukisa ukuhlakazeka kwe-CMC kanye nekhwalithi yomkhiqizo.
Ukwengezwa Okulawulwayo: Kancane kancane engeza i-CMC emanzini ngenkathi ushukumisa ukuvimbela ukunqwabelana nokuqinisekisa ukuhlakazeka okufanayo.
Lungiselela Izimo: Linga ngamapharamitha ahlukene afana nezinga lokushisa, i-pH, nokuyaluza ukuze unqume izimo ezilungile zokuqedwa kwe-CMC.
Ukunciphisa Usayizi Wezinhlayiyana: Uma kungenzeka, sebenzisa i-CMC powder egayiwe ukuze usheshise amazinga okuchithwa.
Ukulawulwa Kwekhwalithi: Gada njalo inqubo yokuhlakazwa kanye nezici zokugcina zomkhiqizo ukuze ulondoloze ukungaguquguquki nekhwalithi.
Izinyathelo Zokuphepha: Ukuthobela izimiso zokuphepha lapho uphatha i-CMC nanoma imaphi amakhemikhali ahlobene ukuze unciphise ubungozi kubasebenzi kanye nemvelo.
Ngokulandela lezi zindlela namathiphu, ungancibilikisa ngempumelelo i-CMC yezinhlelo zokusebenza ezahlukahlukene zezimboni nezohwebo, uqinisekise ukusebenza kahle kanye nekhwalithi yomkhiqizo.
Isikhathi sokuthumela: Mar-20-2024