Uyini umehluko phakathi kwe-cellulose ne-hpmc?

I-cellulose ne-hpdroxypropyl methylcellulose (hpmc) zombili izingxube ezibalulekile ngezicelo ezahlukahlukene, ikakhulukazi ezimbonini ezinjengezemithi, ukudla, izimonyo kanye nokwakha. Ngenkathi babelana ngokufana, nabo banomehluko ohlukile ngokwesakhiwo sabo samakhemikhali, izakhiwo, ukusetshenziswa kanye nezinqubo zokukhiqiza.

Isakhiwo se-1.Chical:

Cellulose:
I-cellulose yi-polysaccharide ehlanganisa amaketanga amade e-glucose molecule exhunywe ndawonye ngamabhondi angu-β-1,4-glycosidic. Yingxenye esemqoka yezindonga zeseli zezitshalo, ukuhlinzeka ukwesekwa okuhlelekile nokuqina kwezicubu zokutshala izicubu. Ama-molecule we-cellulose akha ama-microfibrils nge-hydrogen bonding, efaka isandla emandleni nasekufakwelweni kweselula yama-cellulose emanzini kanye ne-organic solvents amaningi.

I-HPMC:
I-Hydroxypropyl Methylcellulose (HPMC) iyi-polymer yokwenziwa eyedwa ethathwe ku-cellulose ngokusebenzisa ukuguqulwa kwamakhemikhali. Kukhiqizwa ngokwelapha iselula nge-propelene oxide kanye ne-methyl chloride ukwethula i-hydroxypropyl kanye namaqembu we-methoxy e-cellulose backbone. Izinga lokufakwa esikhundleni (DS) lawa maqembu lingahluka, lithinta izakhiwo ze-HPMC ezinjenge-solubity, ukuhlakanipha nokuziphatha kwe-gelation.

2.ProPeries:

Cellulose:
Ukungafakwa endaweni: I-Cellulose Emsulwa ayinamehlo emanzini kanye ne-organic solvents ngenxa yesakhiwo sayo esibanzi se-hydrogen bonding kanye ne-crystalline.
I-Biodegradeabilibility: I-Cellulose iyi-biodegradable, okwenza kube nobungane nemvelo futhi ilungele izinhlelo ezahlukahlukene ze-eco-friendly.
Amandla okwenziwa ngomshini: Imicu ye-cellulose inamandla aphezulu ashubile, afaka isandla ekusebenziseni kwawo ephepheni, izindwangu nezindwangu ezinhlanganisweni.
Ukuntuleka kokuvuselelwa kwemvume: I-CelLose i-Menert yamakhemikhali futhi ayisabeli kalula nezinye izinhlanganisela ngaphansi kwezimo ezijwayelekile.

I-HPMC:
I-Solubinity: I-HPMC ibonisa i-solubity emanzini, yakha izixazululo ezisobala nezibonakalayo. I-solubinity incike ezintweni ezifana nezinga lokufaka esikhundleni, isisindo se-molecular, kanye nokushisa.
Ukwakheka kwamafilimu: I-HPMC ingakha amafilimu aguqukayo futhi avele obala phezu kokomiswa, okwenza kube lusizo ezimbozweni zemithi, ukupakishwa kokudla, kanye nezinye izinhlelo zokusebenza.
I-Viscosity: Izixazululo ze-HPMC zinokuvunywa okuguqukayo okusekelwe ezintweni ezifana nokuhlushwa, izinga lokushisa kanye nezinga lokufaka esikhundleni. Le mpahla ibalulekile ekulawuleni indlela oziphatha kabi yokwakheka.
I-Biahesion: I-HPMC inezindawo ze-bioaphesive, zikuvumela ukuba zinamathele ezindaweni ezingokwemvelo ezinjengolwelwesi lwe-mucosal. Lesi sici sixhashazwa ekwakhiweni kwemithi ngokulethwa kwezidakamizwa okulawulwayo.

I-3.Application:

Cellulose:
Iphepha neKhadibhodi: Izicucu zeCellulose ziyinto evamile eluhlaza ephepheni ephepheni nokukhiqizwa kwamakhadibhodi ngenxa yenala nokuqina kwawo.
Izindwangu: ukotini, i-fiber yemvelo eyakhiwa ikakhulukazi i-cellulose, isetshenziswa kabanzi embonini yezindwangu zokugqoka, i-upholstery, neminye imikhiqizo esekwe kwindwangu.
Izinto zokwakha: Izinto zokwakha ezisekelwe ku-Cellulose ezinjengezinkuni, i-plywood, ne-Porticleeboard zivamile ekwakheni ngezinhloso zokuhlobisa.
Izithasiselo zokudla: Ama-cellulose derivatives anjenge-microcrystaline celtulose kanye ne-carboxymethyl cellulose asetshenziswa njengabakhuthele, abaqinisi, kanye nama-ejenti anqwaba emikhiqizweni yokudla.

I-HPMC:
Izakhi zezemithi: I-HPMC isetshenziswa kabanzi emithi yezemithi njenge-binder, ifilimu yangaphambili, umenzeli wokukhishwa, kanye ne-viscoolkesity, kanye ne-viscoosity desigcy kumathebulethi, amaphilisi, izixazululo ze-ophthalmic, kanye nokwakhiwa kwe-opthalmic, kanye nokwakhiwa kwezindawo eziphakeme.
Izinto zokwakha: I-HPMC yengezwa emikhiqizweni esekwe kasikiselo efana nodaka, izinamathiseli zethayela, kanye nezinhlanganisela ezizimele zokwenza ngcono ukusebenza, ukugcinwa kwamanzi, kanye nezindawo zokunamathela.
Imboni yokudla: I-HPMC iqashwa njengesikhundla, i-emulsifier, i-stabilizer, kanye nesengezo sokudla kwefayibha emikhiqizweni yokudla ehlukahlukene, kufaka phakathi amasoso, ama-dessert, kanye nokudla okwenziwe.
Imikhiqizo yokunakekelwa komuntu siqu: I-HPMC itholakala kwizimombi, izindlu zangasese, kanye nezinto zokunakekelwa komuntu siqu ezifana nama-lotion, okhilimu, ama-shampoos kanye nezinyo lamazinyo njenge-rheology modifier, emulsifier, kanye nefilimu yangaphambili.

Inqubo yokwenza-4.

Cellulose:
I-cellulose itholakala ngokuyinhloko emithonjeni yezitshalo ngezinqubo ezinjengokuphamba kwemishini (isib. Ukugaya izinkuni), ukuphahlazeka kwamakhemikhali (isib. I-cellulose ekhishwe ngaphansi kokuhlanzwa nokucubungula ukuthola izindlela ezahlukahlukene ezilungele izinhlelo ezihlukile.

I-HPMC:
Ukukhiqizwa kwe-HPMC kubandakanya izinyathelo eziningana, kuqala ngokukhishwa kwe-cellulose kusuka kwimithombo yezitshalo enjenge-solip pulp noma amabutho ekotoni. I-cellulose bese iphathwa nge-alkali ukususa ukungcola ngaphambi kokuphendula okuthe xaxa nge-oxide ne-methyl chloride ukwethula ama-hydroxypropylyl kanye namaqembu we-metholly, ngokulandelana. I-HPMC ephumayo ihlanzwa, yomisiwe, futhi igayiwe kusayizi oyifisayo wezinhlayiya zezentengiso.

I-Cellulose ne-HPMC zombili izinhlanganisela ezibalulekile ezinezicelo ezahlukahlukene kuyo yonke imboni ehlukahlukene. Ngenkathi i-cellulose iyi-polysaccharide yemvelo etholakala ezindongeni zamaseli ezitshalo, i-HPMC ingukutholwa okuguquliwe kwe-cellubose nge-solubuko ethuthukisiwe nokusebenza okuthuthukile. Umehluko wabo ekwakhiweni kwamakhemikhali, izakhiwo, izinhlelo zokusebenza, nezinqubo zokukhiqiza zibenza balungele ukusetshenziswa okuhlukile, okusukela ekukhiqizeni kwendwangu yendabuko kanye nezinto zokwakha. Ukuqonda lokhu kuhluka kubalulekile ekutholeni izakhiwo ezihlukile ze-cellulose ne-hpmc ekuthuthukiseni imikhiqizo emisha nezixazululo ezizinzile.