Ukuze siqhathanise i-CMC (carboxymethylcellulose) kanye ne-HPMC (hydroxypropylmethylcellulose), sidinga ukuqonda izakhiwo zazo, ukusetshenziswa kwazo, izinzuzo, ukungalungi, kanye nezimo zokusetshenziswa ezingaba khona. Zombili izinhlobo ze-cellulose zisetshenziswa kabanzi ezimbonini ezahlukene, okuhlanganisa nemithi, ukudla, izimonyo kanye nokwakha. Ngayinye inezakhiwo ezihlukile ezenza zifaneleke ngezinjongo ezahlukene. Ake senze ukuqhathanisa okujulile okubanzi ukuze sibone ukuthi iyiphi engcono ezimweni ezahlukene.
1. Incazelo kanye nesakhiwo:
I-CMC (i-carboxymethylcellulose): I-CMC iyi-cellulose derivative encibilika emanzini ekhiqizwa ukusabela kwe-cellulose ne-chloroacetic acid. Iqukethe amaqembu e-carboxymethyl (-CH2-COOH) ahlanganiswe namanye amaqembu e-hydroxyl ama-monomers e-glucopyranose akha umgogodla we-cellulose.
I-HPMC (i-hydroxypropyl methylcellulose): I-HPMC futhi iyi-cellulose derivative encibilika emanzini ekhiqizwa ngokwelapha i-cellulose nge-propylene oxide kanye ne-methyl chloride. Iqukethe amaqembu e-hydroxypropyl kanye ne-methoxy anamathele kumgogodla we-cellulose.
2. Ukuncibilika:
I-CMC: Incibilika kakhulu emanzini, yakha isixazululo esibonakalayo nesiqinile. Ibonisa ukuziphatha kokugeleza kwe-pseudoplastic, okusho ukuthi i-viscosity yayo iyancipha ngaphansi kokucindezeleka kwe-shear.
I-HPMC: Iphinde incibilike emanzini, yakha isixazululo esiqinile kancane kune-CMC. Iphinde ibonise ukuziphatha okungamanga.
3. Izakhiwo ze-Rheological:
I-CMC: Ibonisa ukuziphatha kokunciphisa ukugunda, okusho ukuthi i-viscosity yayo iyancipha ngokwenyuka kwesilinganiso sokugunda. Lesi sici siyenza ifaneleke ukusetshenziswa lapho kudingeka khona ukuqina kodwa ikhambi lidinga ukugeleza kalula ngaphansi kokugunda, njengopende, insipho kanye nemithi.
I-HPMC: ibonisa ukuziphatha okufanayo kwe-rheological ne-CMC, kodwa i-viscosity yayo ngokuvamile iphakeme uma iphansi. Inezakhiwo ezingcono zokwakha ifilimu, okwenza ifaneleke ukusetshenziswa njengezimbozo, izinamathiselo kanye nezindlela zokwelapha ezikhishwa ngokulawulwa.
4. Ukuqina:
I-CMC: Ngokuvamile izinzile ebangeni elibanzi le-pH kanye nokushisa. Ingabekezelela amazinga aphakathi ama-electrolyte.
I-HPMC: Izinzile kakhulu kune-CMC ngaphansi kwezimo ze-acidic, kodwa ingase idlule ku-hydrolysis ngaphansi kwezimo ze-alkaline. Iphinde izwele kuma-divalent cations, angabangela i-gelation noma imvula.
5. Isicelo:
I-CMC: isetshenziswa kabanzi njenge-thickener, stabilizer kanye ne-ejenti yokugcina amanzi ekudleni (njenge-ayisikhilimu, isosi), kwezemithi (njengezibhebhe, ukumiswa) kanye nezimboni zezimonyo (njengekhilimu, i-lotion).
I-HPMC: Ivame ukusetshenziswa ezintweni zokwakha (isb., izinamathiseli zethayela likasimende, iplasta, udoti), imithi (isb., amaphilisi akhishwa ngokulawulwa, amalungiselelo amehlo), kanye nezimonyo (isb., amaconsi amehlo, imikhiqizo yokunakekela isikhumba).
6. Ubuthi kanye nokuphepha:
I-CMC: Ngokuvamile ibhekwa njengephephile (i-GRAS) yizikhungo ezilawulayo uma isetshenziswa ngaphakathi kwemingcele ethile ekudleni nasezisetshenzisweni zemithi. Iyabola futhi ayinaboli.
I-HPMC: Iphinde ibhekwe njengephephile ukusetshenziswa ngaphakathi kwemingcele enconywayo. Iyahambisana nezinto eziphilayo futhi isetshenziswa kabanzi emkhakheni wezokwelapha njenge-ejenti yokukhulula elawulwayo kanye ne-tablet binder.
7. Izindleko Nokutholakala Kwazo:
I-CMC: Ngokuvamile ibiza kakhulu kune-HPMC. Itholakala kalula kubaphakeli abahlukene emhlabeni jikelele.
I-HPMC: Ibiza kancane ngenxa yenqubo yayo yokukhiqiza futhi ngezinye izikhathi ukuphakelwa kwayo kulinganiselwe kubaphakeli abathile.
8. Umthelela kwezemvelo:
I-CMC: Iyabola, etholakala ezintweni ezivuselelekayo (i-cellulose). Ibhekwa njengenobungani nemvelo.
I-HPMC: Iphinde ibole futhi ithathwe ku-cellulose, ngakho-ke futhi inobungani kakhulu nemvelo.
Zombili i-CMC ne-HPMC zinezakhiwo ezihlukile ezenza zibe izithasiselo ezibalulekile ezimbonini eziningi. Ukukhetha phakathi kwazo kuncike ezidingweni ezithile zokusetshenziswa njengokuncibilika, ukuthambeka, ukuzinza kanye nokucatshangelwa kwezindleko. Ngokuvamile, i-CMC ingase ithandwe ngenxa yezindleko zayo eziphansi, ukuzinza kwe-pH ebanzi, kanye nokufaneleka kokudla kanye nezicelo zezimonyo. I-HPMC, ngakolunye uhlangothi, ingase ithandwe ngenxa yokuthambeka kwayo okuphezulu, izakhiwo ezingcono zokwakha ifilimu, kanye nokusetshenziswa kwemithi nezinto zokwakha. Ekugcineni, ukukhetha kufanele kusekelwe ekucabangeni okugcwele kwalezi zici kanye nokuhambisana nokusetshenziswa okuhlosiwe.
Isikhathi sokuthunyelwe: Feb-21-2024