Ukuze uqhathanise i-CMC (i-carboxymethylcellose) ne-hpmc (i-hpdroxypropylmerlellellulose), kudingeka siqonde izakhiwo zabo, izinhlelo zokusebenza, izinzuzo, ububi, kanye namacala okusebenzisa okungenzeka. Zombili izisulu zokutholwa kwama-cellulose zisetshenziswa kabanzi kwizimboni ezahlukahlukene, kufaka phakathi amakhambi, ukudla, izimonyo nokwakha. Ngamunye unezakhiwo ezihlukile ezizenza zilungele izinhloso ezihlukile. Masenze ukuqhathanisa okuningana okuphelele ukubona ukuthi iyiphi engcono ezimweni ezihlukile.
1. Ukuchazwa kanye nesakhiwo:
I-CMC (i-carboxymethylcellulose): I-CMC iyindawo yokususelwa emanzini okususelwa kumanzi okukhiqizwa ukusabela kwe-cellulose kanye ne-chlororoacetic acid. Kuqukethe amaqembu e-carboxymethyl (-ch2-cooh) ahlanganiswe namanye amaqembu ama-hydroxyl ama-monomers ama-glucopyranose enza i-cellulose backbone.
I-HPMC (HYDROXYPROPYL Methylcellulose): I-HPMC ibuye ibe yi-cellulose esetshenziselwa ukwelashwa ngama-cellulose nge-propelene oxide ne-methyl chloride. Inama-hydroxypropyl kanye namaqembu we-methoxy anamathele emuva kwi-cellulose backbone.
2. I-Solubity:
I-CMC: incane kakhulu emanzini, yakha isixazululo esisobala, esibonakalayo. Ibonisa isimilo se-Pseudoplastic flow, okusho ukuthi ukubonakala kwayo kuncipha ngaphansi kwengcindezi ye-shear.
I-HPMC: Futhi incibilika emanzini, yakha isixazululo esincane se-viscous kune-CMC. Iphinde ikhombise ukuziphatha kwe-pseudoplastic.
Izindawo 3.Rheological:
I-CMC: Kukhombisa ukunciphisa ukuncipha kokuziphatha, okusho ukuthi ukubonakala kwayo kwehla ngezinga elikhulayo le-shear. Le mpahla yenza ilungele izinhlelo zokusebenza lapho kuqubuka khona ukuqina kepha isixazululo sidinga ukugeleza kalula ngaphansi kwama-shear, njengopende, ama-detergents kanye nemithi.
I-HPMC: Ibonisa ukuthi i-Rheological yokuziphatha efanayo ye-CMC, kepha ukubonakala kwayo kuvame kakhulu ekugxileni okuphansi. Inezakhiwo ezingcono zefilimu, okwenza zilungele izinhlelo zokusebenza ezinjengezimbobo, anamathela kanye nokukhishwa kwemithi yokwelulwa kwemithi.
4. Ukuqina:
I-CMC: Ngokuvamile ezinzile ngohlobo oluthile lwe-PH kanye lokushisa. Ingabekezelela amazinga alinganiselwe ama-electrolyte.
I-HPMC: Iqinile kune-CMC ngaphansi kwezimo ze-acidic, kepha ingahle i-hydrolysis ngaphansi kwezimo ze-alkali. Kuyazwela futhi ngezindawo ezihlukanisiwe, ezingadala ukubheja noma ukuhanjiswa kwezulu.
5. Isicelo:
I-CMC: Kusetshenziswe Kabanzi Njengomkhulu, I-Stabilizer kanye ne-Ejenti Yokugcina Amanzi Ekudleni (okufana no-ayisikhilimu, i-sharmace), imithi
I-HPMC: Isetshenziswa kakhulu ezintweni zokwakha (isib. Ukunamathela kwethayela kasimende, udaka, udaka), amakhamishini (isib.
6. Ubuthi nokuphepha:
I-CMC: Ngokuvamile ibonwa njengephephile (GRAS) ngama-ejensi okulawula lapho isetshenziswa ngaphakathi kwemikhawulo ebekiwe ekusetshenzisweni kwezicelo zokudla kanye nezemithi. Kuyinto engathandeki futhi ayinobuthi.
I-HPMC: Iphinde ibhekwe iphephile ukuze isetshenziswe ngaphakathi kwemikhawulo enconyiwe. Kuyahambelana futhi kusetshenziswa kabanzi emkhakheni wezemithi njenge-ejenti yokukhishwa okulawulwayo kanye ne-tablet tablet.
7. Izindleko nokutholakala:
I-CMC: Ngokuvamile izindleko zisebenza nge-HPMC. Kuyatholakala kalula kubahlinzeki abahlukahlukene emhlabeni jikelele.
I-HPMC: Iyabiza kakhulu ngenxa yenqubo yayo yokukhiqiza futhi kwesinye isikhathi okulinganiselwe okuvela kubahlinzeki abathile.
8. Umthelela Wezemvelo:
I-CMC: I-Biodegradable, ethathwe kwizinsizakusebenza ezivuselelekayo (iselula). Kubhekwa njengengane enobungane.
I-HPMC: Futhi i-biodegradable futhi isuselwa ku-cellulose, ngakho-ke futhi inobungane kakhulu imvelo.
Kokubili i-CMC ne-HPMC zinezakhiwo ezihlukile ezibenza zibe izithasiselo ezibalulekile kwizimboni eziningi. Ukukhetha phakathi kwabo kuya ngezidingo ezithile zohlelo lokusebenza njengokuhlaselwa, ukubonakala, ukuqina kanye nokucatshangelwa kwezindleko. Ngokuvamile, i-CMC ingakhethwa ngenxa yezindleko zayo eziphansi, ukuqina okubanzi kwe-PH, kanye nokufaneleka kwezicelo zokudla nezimonyo. Ngakolunye uhlangothi, i-hpmc, ingahle ithathwe ngokubonakala kwayo okuphezulu, okungcono kwezakhiwo ezenziwe ngamafilimu, kanye nezinhlelo zokusebenza kumakhambi kanye nezinto zokwakha. Ekugcineni, ukukhethwa kufanele kususelwe ekucabangeni okugcwele kwalezi zinto kanye nokuhambisana nokusetshenziswa okuhlosiwe.
Isikhathi Seposi: Feb-21-2024