Kodi mumadziwa bwanji za Hydroxypropyl methyl cellulose?

Hydroxypropyl methylcellulose (HPMC) ndi ether ya cellulose yomwe imachokera ku cellulose yachilengedwe. Ndi polima yopangidwa, yosungunuka m'madzi, yopanda ionic yomwe imagwiritsidwa ntchito m'mafakitale osiyanasiyana monga zomangamanga, zamankhwala, chakudya, zodzoladzola, ndi nsalu.

HPMC imapangidwa ndi kusintha kwa cellulose ndi propylene oxide ndi methyl chloride kuti iwonetse magulu a hydroxypropyl ndi methyl mu molekyulu ya cellulose. Digiri ya m'malo (DS) ya HPMC imatanthawuza kuchuluka kwa magulu a hydroxypropyl ndi methyl pa anhydroglucose unit (AGU) ya cellulose.

HPMC ili ndi zinthu zingapo zomwe zimapangitsa kuti zikhale zothandiza pazogwiritsa ntchito zosiyanasiyana. Imasungunuka m'madzi, imapanga yankho lomveka bwino, ndipo imakhala ndi kukhazikika kwabwino kwa kutentha. Imakhalanso yokhazikika pansi pazikhalidwe za kutentha ndi pH ndipo siziwola mosavuta. HPMC ndi hygroscopic, kutanthauza kuti akhoza kuyamwa ndi kusunga chinyezi. Ndiwopanda poizoni, osakwiyitsa, komanso osakhala allergenic, zomwe zimapangitsa kuti zikhale zotetezeka kuti zigwiritsidwe ntchito pazinthu zambiri.

M'makampani omanga, HPMC imagwiritsidwa ntchito ngati chowonjezera, chomangira, komanso chosungira madzi muzinthu zopangidwa ndi simenti, zomatira matailosi, pulasitala, ndi zida zina zomangira. M'makampani opanga mankhwala, HPMC imagwiritsidwa ntchito ngati binder, disintegrant, and film-former mu piritsi ndi capsule formulations. M'makampani azakudya, HPMC imagwiritsidwa ntchito ngati thickener, emulsifier, ndi stabilizer muzinthu zosiyanasiyana. Mu zodzoladzola, HPMC ntchito monga thickener, filimu-kale, ndi emulsifier mu zodzoladzola, lotions, ndi formulations ena.

Ponseponse, HPMC ndi polima yosunthika komanso yothandiza yomwe ili ndi ntchito zosiyanasiyana m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera.