I-Carboxymethyl cellulose (CMC) iyi-polymer eguquguqukayo evame ukusetshenziswa ezimbonini ezahlukahlukene njengokudla, ezemithi, izimonyo, nezindwangu. Yaziwa ngekhono layo lokusebenza njenge-ejenti yokuqina, i-stabilizer, i-binder, ne-ejenti yokugcina amanzi. Uma ixubene kahle namanzi, i-CMC yakha isisombululo se-viscous esinezici eziyingqayizivele ze-rheological.
Ukuqonda i-CMC:
Isakhiwo samakhemikhali kanye nezakhiwo ze-CMC.
Izicelo zezimboni kanye nokubaluleka emikhakheni ehlukahlukene.
Ukubaluleka kokuxubana okufanele ukuze kuzuzwe ukusebenza okufunayo.
Ukukhethwa kweBanga le-CMC:
Amamaki ahlukene e-CMC atholakala ngokususelwe ku-viscosity, izinga lokushintsha, kanye nobumsulwa.
Ukukhetha ibanga elifanele ngokuya ngesicelo esihlosiwe kanye nezici ezifiswayo zesixazululo.
Ukucatshangelwa kokuhambisana nezinye izithako ekwakhiweni.
Izisetshenziswa namathuluzi:
Izitsha ezihlanzekile nezihlanzekile zokuxuba.
Izinto zokusebenza ezinyakazayo njengezixhumi ezisebenza ngomshini, izixube, noma izinti ezinyakazayo eziphathwa ngesandla.
Amasilinda athweswe iziqu noma izinkomishi zokulinganisa zokulinganisa okunembile kwe-CMC namanzi.
Ukuxuba Amasu:
a. Ukuxuba Okubandayo:
Ukwengeza i-CMC kancane emanzini abandayo ngokunyakazisa njalo ukuvimbela ukunqwabelana.
Ikhula kancane isivinini sokuyaluza ukuze kuqinisekiswe ukuhlakazeka okufanayo.
Ukuvumela isikhathi esanele se-hydration kanye nokuqedwa kwezinhlayiya ze-CMC.
b. Ukuxuba Okushisayo:
Ukushisisa amanzi ezingeni lokushisa elifanele (imvamisa phakathi kuka-50-80°C) ngaphambi kokwengeza i-CMC.
Ukufafaza kancane i-CMC emanzini ashisayo ngenkathi ugqugquzela njalo.
Ukugcina izinga lokushisa ngaphakathi kwebanga elinconywayo ukuze kube lula ukugeleza kwamanzi okusheshayo nokuhlakazeka kwe-CMC.
c. Ukuxutshwa kwe-High-Shear:
Ukusebenzisa izixube zemishini enesivinini esikhulu noma ama-homogenizers ukuze kuzuzwe ukuhlakazeka okucolisekileyo kanye nokufakwa kwamanzi ngokushesha.
Ukuqinisekisa ukulungiswa okufanele kwezilungiselelo zokuxuba ukuvimbela ukukhiqizwa kokushisa okudlulele.
Ukuqapha i-viscosity nokulungisa amapharamitha okuxuba njengoba kudingeka ukuze kuzuzwe ukuvumelana okufunayo.
d. Ukuxuba kwe-Ultrasonic:
Ukusebenzisa amadivaysi e-ultrasonic ukudala i-cavitation kanye ne-micro-turbulence kusixazululo, ukusiza ukuhlakazeka okusheshayo kwezinhlayiya ze-CMC.
Ukuthuthukisa imvamisa namandla izilungiselelo ngokusekelwe kuzimfuneko ezithile zokwakheka.
Ukusebenzisa ukuxuba kwe-ultrasonic njengendlela yokwengeza yokuthuthukisa ukuhlakazeka nokunciphisa isikhathi sokuxuba.
Okucatshangwayo Ngekhwalithi Yamanzi:
Ukusebenzisa amanzi ahlanzekile noma acwengekile ukuze kuncishiswe ukungcola nokungcola okungase kuthinte ukusebenza kwe-CMC.
Ukuqapha izinga lokushisa lamanzi kanye ne-pH ukuze kuqinisekiswe ukuhambisana ne-CMC kanye nokuvimbela ukusabela okubi noma ukuwohloka.
Ukufakwa kwamanzi nokuqedwa:
Ukuqonda i-hydration kinetics ye-CMC kanye nokuvumela isikhathi esanele sokugeleza okuphelele.
Ukuqapha i-viscosity iyashintsha ngokuhamba kwesikhathi ukuze kuhlolwe inqubekelaphambili yokuqedwa.
Ukulungisa imingcele yokuxuba noma ukwengeza amanzi engeziwe njengoba kudingeka ukuze kuzuzwe i-viscosity oyifunayo nokuvumelana.
Ukulawula Ikhwalithi Nokuhlola:
Ukwenza izilinganiso ze-viscosity kusetshenziswa ama-viscometer noma ama-rheometers ukuhlola ikhwalithi yesisombululo se-CMC.
Ukwenza ukuhlaziywa kosayizi wezinhlayiyana ukuqinisekisa ukuhlakazeka okufanayo kanye nokungabikho kwama-agglomerate.
Ukwenza izivivinyo zokuzinza ukuze kuhlolwe impilo yeshalofu nokusebenza kwesixazululo se-CMC ngaphansi kwezimo ezihlukahlukene zokulondoloza.
Izicelo ze-CMC-Water Mixtures:
Imboni Yokudla: Ukujiya nokusimamisa amasoso, okokugqoka, nemikhiqizo yobisi.
Imboni Yezokwelapha: Ukwakha ukumiswa, ama-emulsions, kanye nezixazululo ze-ophthalmic.
Imboni Yezimonyo: Ifaka kokhilimu, okokugcoba, kanye nemikhiqizo yokunakekela komuntu siqu yokulawula i-viscosity kanye nokuqiniswa kwe-emulsion.
Imboni Yezindwangu: Ithuthukisa i-viscosity yokunamathisela okuphrinta kanye nokwakheka kosayizi.
Ukuxuba i-CMC emanzini kuyinqubo ebalulekile edinga ukucatshangelwa ngokucophelela kwezinto ezihlukahlukene njengokukhethwa kwebanga, amasu okuxuba, ikhwalithi yamanzi, nezinyathelo zokulawula ikhwalithi. Ngokulandela imihlahlandlela evezwe kulo mhlahlandlela obanzi, abakhiqizi bangaqinisekisa ukusabalalisa okusebenzayo nokuphumelelayo kwe-CMC, okuholela ekwakhekeni kwezisombululo zekhwalithi ephezulu nokusebenza okungaguquki kuzo zonke izinhlelo zokusebenza ezihlukahlukene.
Isikhathi sokuthumela: Mar-21-2024