Hydroxypropylmethylcellulose (HPMC) ndi polima yopangidwa ndi theka-synthetic yomwe imagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana.ufa woyera kapena wosayera, wosungunuka mosavuta m'madzi, komanso wokhazikika bwino pakutentha.Chifukwa cha zinthu zake zabwino kwambiri, zakhala zodziwika bwino pamapulogalamu ambiri osiyanasiyana.Mu pepala ili, tikufufuza zifukwa zofala kwambiri za HPMC.
1. Chitetezo ndi Chilengedwe
Chimodzi mwa zifukwa zazikulu HPMC chimagwiritsidwa ntchito chifukwa ndi otetezeka ndi chilengedwe.HPMC imachokera ku cellulose, chinthu chochuluka mwachibadwa.Kuphatikiza apo, sizowopsa ndipo sizikhala pachiwopsezo cha thanzi kwa anthu kapena nyama.
2. Kusinthasintha
Chifukwa china chogwiritsa ntchito kwambiri HPMC ndi kusinthasintha kwake.Mwachitsanzo, amagwiritsidwa ntchito m'makampani azakudya monga thickener, binder, emulsifier, stabilizer, etc.. Amagwiritsidwanso ntchito m'makampani opanga mankhwala monga filimu yosungiramo mafilimu komanso emollient..Pomanga, HPMC imagwiritsidwa ntchito ngati chowonjezera kuonjezera kusunga madzi komanso kugwira ntchito kwa simenti ndi matope.Kuphatikiza apo, imagwiritsidwa ntchito ngati zokutira m'makampani opanga nsalu ndi mapepala.
3. Kuchita bwino kwambiri
Zinthu zabwino kwambiri za HPMC zimapangitsa kuti zikhale zofunikira kwambiri pa ntchito zambiri.Ilinso ndi dispersibility yabwino, kuonetsetsa kuti ngakhale kufalikira kwa zinthu mu mankhwala omaliza.
4. Zotsika mtengo
HPMC imagwiritsidwanso ntchito kwambiri chifukwa ndi njira yotsika mtengo kwa ma polima ena.Ndiwotsika mtengo kuposa ma polima ena ambiri opangira, zomwe zimapangitsa kukhala njira yabwino kwa opanga.Kuphatikiza apo, magwiridwe antchito ake apamwamba komanso kusinthika kwake kumapangitsa kuti ikhale yoyenera pamapulogalamu ambiri osiyanasiyana.
5. Kuvomerezeka kwa Malamulo
Pomaliza, HPMC imagwiritsidwa ntchito kwambiri chifukwa idavomerezedwa ndi mabungwe olamulira padziko lonse lapansi.Amaonedwa kuti ndi otetezeka kuti agwiritsidwe ntchito muzakudya, mankhwala osokoneza bongo ndi zodzoladzola.Kuphatikiza apo, zakhala zikugwiritsidwa ntchito m'mafakitalewa kwa zaka zambiri, kotero kafukufuku wambiri wachitika pachitetezo chake komanso magwiridwe ake.
Mwachidule, hydroxypropyl methylcellulose ndi yogwiritsidwa ntchito mosiyanasiyana, yotsika mtengo komanso yotetezeka yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana.Chitetezo chake ndi kuyanjana kwa chilengedwe, kuphatikizapo kuvomerezedwa ndi malamulo, zalimbikitsanso kutchuka kwake.