I-Hydroxypropylm methyl cellulose vs methyl cellulose

I-Cellulose iyingxenye esemqoka yezindonga zamaseli ezitshalo kanye ne-polymer enobuningi ye-organic emhlabeni. I-Cellulose Derivatives isetshenziswa ezinhlobonhlobo zezicelo zezimboni, kubandakanya nokudla, amakhambi kanye nokwakha. Lezi zinto ezimbili ezithandwa kakhulu yi-cellulose decivatives yi-hydroxypropyllykyl methylcellulose (HPMC) ne-methylcellulose (MC). Le mikhiqizo emibili ivame ukusetshenziswa ngokushintshana, kepha banomehluko obalulekile okufanele acatshangwe.

Iyini i-hydroxypropyll methylcellulose?

I-Hydroxypropyl Methylcellulose iyi-nonionic, i-cellulose ye-cellulose ether ethathwe kwi-polymer cellulose yemvelo. Ukwakheka kwamangqamuzana kwe-HPMC kuyafana ne-cellulose yemvelo, okwenza kube inketho ebonakalayo yezinhlelo zokusebenza eziningi zezimboni. Izakhiwo zayo ezihlukile ze-molecular, kufaka phakathi i-solubity kanye nokubonakala, kwenze ilungele ukusetshenziswa ezintweni zokwakha, ukudla, amakhamishini kanye nezimonyo.

Izici ze-HPMC:

1. I-Solubity:
Enye yezinzuzo ezibaluleke kakhulu ze-HPMC yi-solubility yayo. I-HPMC iyancibilika kalula emanzini abandayo, yakha isixazululo esicacile, esizinzile, esishubile. Lokhu kwenza i-HPMC ibe nokunamathelisa okuhle kwezimboni eziningana, kufaka phakathi ukwakhiwa kanye nemithi.

2. I-Viscosity:
I-HPMC inokubona okuphezulu futhi ilungele ukuqina koketshezi. I-viscosity yayo ephezulu ivezwa ngokuyinhloko kumaqembu ayo e-hydroxypropyl kanye ne-methoxy esebenzayo, ekhulisa amandla awo okukha ama-hydrogen bond futhi akhuthaze ukusebenzisana ngama-molecule wamanzi.

3. Ukwakheka kwefilimu:
I-HPMC yi-ejenti enhle eyakha amafilimu futhi ivame ukusetshenziswa embonini yezemithi ukuze uthole amaphilisi wezemithi amakhemikhali nama-caplule. Lokhu kudala isithiyo sokulwa nomswakama nezinye izinto zemvelo, kunganciphisa impilo yeshalofu eshalofu lesidakamizwa.

4. Ubumsulwa obuphezulu:
I-HPMC ingeyobumsulwa kakhulu futhi ingumkhiqizo wemvelo ongenawo amakhemikhali ayingozi. Lokhu kwenza kube kuhle kwizimboni zokudla nezimonyo.

Yini i-methylcellosise?

I-methylcellose nayo iyisithasiselo se-cellulose ethathwe kwi-cellulose fibers. Yi-methyl ester ye-cellulose, futhi isakhiwo sayo samangqamuzana sihluke kakhulu ku-cellulose yemvelo, okwenza kube lula ekunciphisweni kokuwohloka kwe-enzyme. I-methylcellulose iyindawo esebenza ngemisebenzi esetshenziselwa izimboni ezahlukahlukene kufaka phakathi ukudla, amakhamishini, ukwakhiwa kanye nezimonyo.

Izici ze-methylcellulose:

1
I-Methylcellose ihlakaze kalula emanzini abandayo, yakha isixazululo esicacile, esibonakalayo, nesizinzile. Kepha ukulekelela kwayo kuphansi kune-HPMC. Lokhu kwenza kungakulungele ukusetshenziswa kwezimboni ezidinga ukulunga okuphezulu, njengemboni yezokwakha.

2. I-Viscosity:
I-methylcellulose inokubona okuphezulu futhi ilungele ukuqina koketshezi. I-viscosity yayo futhi ibizwa ngamaqembu awo asebenzayo axhumana nama-molecule wamanzi.

3. Ukwakheka kwefilimu:
I-methylcellulose i-ejenti enhle eyakha amafilimu futhi ivame ukusetshenziswa embonini yezemithi ukuze uthole amaphilisi wezemithi namaphilisi. Kodwa-ke, ukusebenza kwayo okwakha amafilimu kuphansi kwe-HPMC.

4. Ubumsulwa obuphezulu:
I-methylcellose ihlanzekile kakhulu futhi ingumkhiqizo wemvelo ongenawo amakhemikhali ayingozi. Lokhu kwenza kube kuhle kwizimboni zokudla nezimonyo.

Ukuqhathanisa phakathi kwe-HPMC ne-MC:

1. I-Solubity:
I-HPMC incane kakhulu emanzini kune-methylcellulose. Lo mehluko we-solubity wenza i-hpmc inketho esebenzayo yezimboni ezidinga ukulekelela okuphezulu, njengokulokwakha.

2. I-Viscosity:
Kokubili i-HPMC ne-methylcellose kune-viscosities ephezulu. Kodwa-ke, i-viscosity ye-HPMC iphakeme kancane kunaleyo ye-methylcellulose. Lokhu kwenza i-HPMC ilungele ukusetshenziswa ezimbonini ezidinga ama-viscosities aphezulu, njengokudla nezimonyo.

3. Ukwakheka kwefilimu:
I-HPMC ne-methylcellulose ngama-ejenti amahle kakhulu akha amafilimu. Kodwa-ke, i-HPMC inezakhiwo ezingcono zefilimu ezenziwe nge-methylcellulose, okwenza ukuthi ilungele ukusetshenziswa embonini yezemithi.

4. Ukuhlanzeka:
I-HPMC ne-methylcellulose zombili imikhiqizo yemvelo ehlanzekile enamandla aqukethe amakhemikhali ayingozi.

I-Hydroxypropyl Methylcellulose kanye ne-methylcellulose zombili izinto ezifuywayo ezisezingeni elifanele ezisetshenziselwa izimboni ezahlukahlukene. Womabili la makhompiyutha anokuhlaselwa okuphezulu, ukubonakala okuphezulu, izindawo ezinhle kakhulu ezakha amafilimu nomsulwa okuphezulu. Kodwa-ke, i-solubility kanye nokubona i-HPMC kuphakeme kancane kunaleyo ye-methylcellulose, okwenza kube lula kakhulu ukuthi izimboni ezidinga ukulekelela okuphezulu nokuvunywa. Ngokwengeziwe, i-HPMC inezakhiwo ezingcono ezenziwe ngefilimu ze-methylcellulose, okwenza ukuthi ilungele ukusetshenziswa embonini yezemithi. Kodwa-ke, zombili izinhlanganisela zinezakhiwo ezihlukile ezibenza zilungele ukusetshenziswa ezimbonini ezahlukene, futhi ukusetshenziswa kwazo kumele kunqunywe ngokusekelwe kuhlelo oluthile.