IHydroxypropyl Methylcellulose (HPMC)iyinhlanganisela ye-polymer encibilika emanzini etholwe ngokushintsha amakhemikhali i-cellulose yemvelo. Isetshenziswa kakhulu emikhakheni yezemithi, ukudla, izimonyo, kanye nokwakhiwa, futhi inezakhiwo ezinhle kakhulu njengokujiya, ukwenza amafilimu, i-emulsification, nokuzinza.
1. Isimiso sokulungiselela
IHydroxypropyl methylcellulose iphuma ku-hydrophilic cellulose, futhi ukunyibilika kwayo kuthinteka kakhulu izinto ezifakwa esikhundleni se-hydroxypropyl ne-methyl ku-molecule. Iqembu le-methyl likhulisa ukuncibilika kwalo kwamanzi, kuyilapho iqembu le-hydroxypropyl likhulisa izinga lokuqedwa kwalo emanzini. Ngokuvamile, i-AnxinCel®HPMC ingancibilika ngokushesha emanzini abandayo ukuze yakhe isixazululo se-colloidal esifanayo, kodwa incibilika kancane emanzini ashisayo, futhi izinto eziyimbudumbudu zivame ukuhlangana ngesikhathi sokuncibilika. Ngakho-ke, ukunakwa kufanele kukhokhwe ekulawuleni izinga lokushisa lokuqedwa kanye nenqubo yokuqedwa ngesikhathi sokulungiselela.
2. Ukulungiselela impahla eluhlaza
I-HPMC powder: Khetha i-HPMC powder enama-viscosities ahlukene kanye namadigri okushintsha ngokuvumelana nezidingo zokusetshenziswa. Amamodeli avamile ahlanganisa i-viscosity ephansi (isisindo esiphansi samangqamuzana) kanye ne-viscosity ephezulu (isisindo esiphezulu samangqamuzana). Ukukhetha kufanele kusekelwe ezidingweni zokwakheka okuthile.
I-Solvent: Amanzi iyisincibilikisi esisetshenziswa kakhulu, ikakhulukazi ekusetshenzisweni kwemithi nokudla. Ngokwezidingo zokuhlakazwa, ingxube yamanzi nezincibilikisi zemvelo, njenge-ethanol/water mixed solution, ingasetshenziswa.
3. Indlela yokulungiselela
Isisindo se-HPMC
Okokuqala, kala ngokunembile i-HPMC powder edingekayo ngokusho kokuhlushwa kwesisombululo okufanele silungiselelwe. Ngokuvamile, uhla lokuhlushwa lwe-HPMC luyi-0.5% kuya ku-10%, kodwa ukugxilisa ingqondo ethile kufanele kulungiswe ngokuvumelana nenhloso kanye ne-viscosity edingekayo.
Ukuqedwa kokumanzisa ngaphambili
Ukuze uvimbele i-HPMC powder ekuhlanganiseni, ukuchithwa kwangaphambili kokumanzisa kuvame ukwamukelwa. Umsebenzi othize uthi: fafaza i-HPMC powder enesisindo ngokulinganayo engxenyeni ye-solvent, gudluza kancane, futhi wenze i-HPMC powder ithintane nenani elincane le-solvent kuqala ukuze wenze isimo esimanzi. Lokhu kungavimbela ngempumelelo i-HPMC powder ekuhlanganiseni futhi ikhuthaze ukuhlakazeka kwayo okufanayo.
Inqubo yokuqedwa
Faka kancane kancane isincibilikisi esisele kumpushana we-HPMC emanzi futhi uqhubeke ugqugquzela. Njengoba i-HPMC inokuncibilika okuhle kwamanzi, amanzi kanye ne-HPMC kuncibilika ngokushesha kuzinga lokushisa legumbi. Gwema ukusebenzisa amandla aphezulu okugunda lapho uvuselela, ngoba ukugoqa okunamandla kuzodala ama-bubbles, okuthinta ukubonakala nokufana kwesixazululo. Ngokuvamile, isivinini esishukumisayo kufanele sigcinwe ebangeni eliphansi ukuze kuqinisekiswe ukuqedwa okufanayo.
Ukulawula izinga lokushisa
Nakuba i-HPMC ingancibilika emanzini abandayo, uma izinga lokuchithwa lihamba kancane, isisombululo singashiswa ngokufanelekile. Izinga lokushisa lokushisa kufanele lilawulwe phakathi kuka-40°C no-50°C ukuze kugwenywe izinga lokushisa eliphakeme ngokweqile elibangela izinguquko esakhiweni samangqamuzana noma izinguquko ezibukhali ku-viscosity yesixazululo. Phakathi nenqubo yokushisisa, ukunyakazisa kufanele kuqhutshekwe kuze kube yilapho i-HPMC isihlakazwe ngokuphelele.
Ukupholisa nokuhlunga
Ngemuva kokuqedwa okuphelele, vumela ikhambi ukuthi liphole ngokwemvelo ekamelweni lokushisa. Phakathi nenqubo yokupholisa, inani elincane lama-bubbles noma ukungcola kungase kuvele esixazululo. Uma kunesidingo, isisefo singasetshenziswa ukusihluza ukuze kukhishwe izinhlayiya eziqinile ezingaba khona futhi kuqinisekiswe ukucaca nokungafihli kwesixazululo.
Ukulungiswa kokugcina nokugcina
Ngemva kokuba ikhambi selipholile, ukugxila kwalo kungalungiswa ngokuvumelana nezidingo zangempela. Uma ukugxila kuphezulu kakhulu, i-solvent ingafakwa ukuze ihlanjululwe; uma ukuhlushwa kuphansi kakhulu, i-HPMC powder eyengeziwe idinga ukungezwa. Ngemuva kokuthi isisombululo sesilungisiwe, kufanele sisetshenziswe ngokushesha. Uma idinga ukugcinwa isikhathi eside, kufanele igcinwe esitsheni esivalekile ukugwema ukuhwamuka kwamanzi noma ukungcoliswa kwesisombululo.
4. Izinyathelo zokuphepha
Ukulawula izinga lokushisa: Izinga lokushisa eliphezulu kufanele ligwenywe ngesikhathi sokuncibilika ukuze kugwenywe ukuthikameza ukunyibilika nokusebenza kwe-AnxinCel®HPMC. Emazingeni okushisa aphezulu, i-HPMC ingehlisa isithunzi noma i-viscosity yayo yehle, kuthinte umphumela wayo wokusebenzisa.
Indlela yokunyakazisa: Gwema ukugunda okweqile noma isivinini esisheshayo esinyakazayo ngesikhathi sokunyakazisa, ngoba ukunyakazisa okunamandla kungase kubangele amabhamuza akheke futhi kuthinte ukucaca kwesixazululo.
Ukukhethwa kwe-solvent: Amanzi yi-solvent evame ukusetshenziswa kakhulu, kodwa kwezinye izinhlelo zokusebenza ezikhethekile, isixazululo esixubile samanzi nezinye izincibilikisi (ezifana notshwala, i-acetone, njll.) zingakhethwa. Izilinganiso ezihlukene ze-solvent zizothinta izinga lokuqedwa nokusebenza kwesixazululo.
Izimo zokugcina: Isixazululo se-HPMC esilungisiwe kufanele sigcinwe endaweni epholile neyomile ukuze kugwenywe ukuchayeka isikhathi eside ekushiseni okuphezulu noma elangeni eliqondile ukuvimbela izinguquko kwikhwalithi yesisombululo.
I-Anti-caking: Uma i-powder yengezwe ku-solvent, uma i-powder yengezwa ngokushesha kakhulu noma ingalingani, kulula ukwenza izigaxa, ngakho kufanele zengezwe kancane kancane.
5. Izinkambu zokufaka isicelo
IHydroxypropyl methylcellulose isetshenziswa kabanzi ezimbonini ezahlukahlukene ngenxa yokuncibilika kwayo okuhle kakhulu kwamanzi kanye nokuhambisana kwayo nezinto eziphilayo:
Imboni yemithi: Njengefilimu yangaphambili, ingcina, i-thickener, i-ejenti ekhishwa isikhathi eside, njll. yezidakamizwa, idlala indima ebalulekile enqubweni yokulungiselela izidakamizwa.
Imboni yokudla: Njenge-thickener, emulsifier, stabilizer, ivame ukusetshenziswa ekucubunguleni ukudla, okufana no-ayisikhilimu, ama-condiments, iziphuzo, njll.
Imboni yezokwakha: Njengokuqina kwezingubo zezakhiwo nodaka, ingathuthukisa ukunamathela kanye noketshezi lwengxube.
Izimonyo: Njengesigxivizo, isizinzisi kanye nefilimu yangaphambili, isetshenziswa kuzimonyo ezifana nokhilimu, ama-shampoos, nemikhiqizo yokunakekelwa kwesikhumba ukuthuthukisa ikhwalithi yomkhiqizo nolwazi lomsebenzisi.
Ukulungiswa kweI-HPMCkuyinqubo edinga ukunakwa imininingwane. Phakathi nenqubo yokulungisa, izici ezifana nezinga lokushisa, indlela enyakazayo, nokukhetha izincibilikisi kudingeka zilawulwe ukuze kuqinisekiswe ukuthi zingancibilika ngokugcwele futhi zigcine ukusebenza kahle. Ngokusebenzisa indlela efanele yokulungiselela, i-AnxinCel®HPMC ingasetshenziswa kabanzi ezimbonini eziningi futhi idlale indima yayo ebalulekile.
Isikhathi sokuthumela: Jan-16-2025