Kuki HEMC ihitamo neza kuruta HPMC?

Hypromellose (HPMC) na hydroxyethylmethylcellulose (HEMC) ni bibiri bikomoka kuri selile ikoreshwa cyane mu nganda zikora imiti, ibiryo ndetse no kwisiga. Nubwo HPMC na HEMC basangiye byinshi, biratandukanye muburyo bumwe, bigatuma imwe iruta iyindi kubikorwa bimwe.

HEMC ni selile yahinduwe ya selile yabonetse mugukora methyl selulose hamwe na okiside ya Ethylene na Ethyl chloride, hanyuma igasimbuza Ethyl hydroxyl. Kubwibyo, HEMC ifite urwego rwo hejuru rwo gusimbuza (DS) kuruta HPMC. DS bivuga impuzandengo y'ibisimburwa kuri glucose, bigira ingaruka kumubiri na chimique ya polymer. Muri rusange, DS yo hejuru itanga ibisubizo byiza mumashanyarazi, umuvuduko ukabije, hamwe no kongera amazi. DS ya HEMC mubusanzwe ni 1.7-2.0, mugihe DS ya HPMC isanzwe iri hagati ya 1.2 na 1.5.

Inyungu yihariye ya HEMC kurenza HPMC nubushobozi bwayo bwiza bwo gufata amazi, bigatuma biba byiza kubifata neza, ibikoresho byubwubatsi nibindi bicuruzwa bisaba gufata neza amazi. HEMC nayo irwanya mikorobe kurusha HPMC kandi ifite igihe kirekire. Kwiyongera kwa hydrophobicity ya HEMC no kuba hari amatsinda ya Ethyl mumugongo wacyo bituma iba emulisiferi nziza kandi irashobora guteza imbere igihe kirekire cya emulisiyo.

Iyindi nyungu yo gukoresha HEMC nuguhuza nindi miti myinshi, igira uruhare muburyo butandukanye mubikorwa bitandukanye. Mubyongeyeho, HEMC ifite imiterere myiza yo gukora firime, ituma iba ingirakamaro mugukora ibicuruzwa hamwe na binders mugukora ibinini, ibinini na granules.

Kurundi ruhande, HPMC ifite imiterere myiza yubushyuhe bwogukoresha ubushyuhe, bigatuma ihitamo neza kumiti ya farumasi irekura buhoro buhoro bisaba geles-yubushyuhe. HPMC ifite kandi amazi meza kandi ntishobora gukurura coagglomerates, ikaba idashobora gukemurwa na polymers mugisubizo.

Mugusoza, HEMC na HPMC byombi nibikomoka kuri selile bifite agaciro keza bitewe nibisabwa. HEMC ifite uburyo bwiza bwo gufata amazi, emulisiyasi, no guhuza nindi miti, mugihe HPMC ifite imiterere myiza ya thermogelling hamwe no gukemura amazi. Kubwibyo, guhitamo hagati ya HEMC na HPMC biterwa na porogaramu wifuza, inzira yo gukora nibisabwa byanyuma.