Ingabe i-hpmc hydrophilic noma i-lipophilic?

I-Hydroxypropyl Methylcellulose (HPMC) iyingxenye esetshenziswa kabanzi ye-polymer ngezinhlelo ezahlukahlukene zezokwelapha, ukudla, izimonyo nokwakhiwa. Umbuzo we-hydrophicity kanye ne-lipophilicity ye-HPMC ikakhulukazi kuncike ekwakhiweni kwamakhemikhali kanye nezakhiwo zamangqamuzana.

Isakhiwo samakhemikhali nezakhiwo ze-HPMC
I-HPMC iyi-cellulose engenasisekelo engeyona eye-cellulose eyakhiwe ngokwethula i-hydroxypropyl kanye namaqembu we-methyl kusakhiwo samangqamuzana e-cellulose. I-molecular yayo ichungechunge layo liqukethe i-hydrophilic hydrophilic (-OH) kanye ne-lipophilic methyl (-ch3) ne-hydroxypropyll (-ch2ch (oh) CH3). Ngakho-ke, inezinhlangano ezimbili, zombili i-hydrophilic ne-lipophilic, kepha i-hydrophicicity ivelele kancane. Le mpahla ikunikeza i-solubity enhle, ukwakheka kwefilimu nokuqina, futhi kungadala ukusabalalisa okuzinzile kwe-colloidal ezixazululweni zamanzi nama-solvents ezi-organic.

Hydrophilicity of hpmc
Ngenxa yenombolo enkulu yamaqembu e-hpdroxyl ekwakhiweni kwe-HPMC, i-molecular yayo i-hydrophility eqinile. Ngamanzi, i-HPMC ingakha ama-hydrogen bond, ivumela ama-molecule ukuthi ancibilike emanzini futhi akha isixazululo esiphakeme. Ngaphezu kwalokho, i-HPMC nayo inokugcinwa kwamanzi okuhle kakhulu futhi isetshenziswa kabanzi njengomuntu osindayo ne-stibilizer kwezokwelapha, ukudla nezimonyo. Isibonelo, i-HPMC ingasetshenziswa njenge-ejenti yokukhishwa okuqhubekayo kumalungiselelo emithi okubambezela isilinganiso sokukhishwa kwezidakamizwa emzimbeni futhi ithuthukise ukuqina kwezidakamizwa.

Lipophility of hpmc
Amaqembu we-methyl kanye ne-hpdroxypropyl ku-molecule ye-HPMC ane-hydrophopobicity ethile, ngakho-ke i-hpmc nayo ine-lipophility ethile, ikakhulukazi ebumbanweni oluphansi noma izikhala ze-organic ukwakha isixazululo esizinzile. I-LiPophilicicity yayo ivumela ukuthi ihlanganise nezinto ezithile ze-oyela zesigaba samafutha, esithuthukisa amandla okufaka isicelo se-HPMC e-oil-in-water-in-amanzi (o / w) ama-emulsions kanye ne-latexes. Kwamanye ama-emulsion noma amalungiselelo ahlanganisiwe, i-lipophility ye-HPMC isiza ukwakha uhlelo oluhlakazekile ngokufana nezinto ze-hydrophobic, ngaleyo ndlela zithuthukise ukusatshalaliswa kanye nokuqina kwezithako.

Ukusetshenziswa kwe-HPMC
Amalungiselelo emithi emithi: I-HPMC ivame ukusetshenziswa njengezinto zokugcina zokukhishwa kwemali ezigciniwe kumathebulethi, zisebenzisa i-hydrophility yayo nezakhiwo ezenziwe ngefilimu ukulawula isilinganiso sokukhishwa kwezidakamizwa.
Imboni yokudla: ekudleni, i-HPMC isetshenziswa njengesikhudlwana kanye ne-water retainer ukunweba impilo yeshelufu yokudla futhi ithuthukise ukunambitheka.
Izinto zokwakha: I-HPMC's WAMUBLILIZO NAMAHHALA WAMANZI NENZA I-CENER GIATERER KAKHESHEKO EBALULEKILE, Ukwenza ngcono Ukusebenza namanzi aphethe amandla okuqukethwe.
Izimonyo: Kumikhiqizo yokunakekelwa kwesikhumba, i-HPMC ingasetshenziswa njenge-emulsifier Stabilizer. Ngenxa ye-hydrophicility yayo, ingakha i-matrix enamanzi ukuze ilondoloze umphumela wokumanzisa kanye nokuthungwa komkhiqizo.
I-HPMC iyinto ye-amphiphilic polymer e-hydrophilic ne-lipophilic, kepha ngoba inamaqembu amaningi e-hydroxyl, ibonisa i-hydrophility enamandla.