Kodi Chemical Properties ya Hypromellose ndi iti?

Hydroxypropyl Methylcellulose (HPMC), yomwe imadziwikanso kuti Hypromellose, ndi polima yopangidwa kuchokera ku cellulose. Mankhwala ake ndi awa:

1. Kusungunuka: HPMC imasungunuka m'madzi ndipo imapanga yankho lomveka bwino likasakanizidwa ndi madzi. The solubility wa HPMC zimadalira mlingo wake m'malo (DS) ndi mamasukidwe akayendedwe kalasi.
2. Viscosity: HPMC imapezeka m'makalasi osiyanasiyana a viscosity, kuyambira otsika mpaka kukhuthala kwambiri. The mamasukidwe akayendedwe a HPMC zimadalira maselo ake kulemera, mlingo wa m'malo, ndi ndende.
3. Kukhazikika: HPMC ndi yokhazikika pansi pazikhalidwe za kutentha ndi pH. Zimagonjetsedwa ndi kuwonongeka kwa tizilombo toyambitsa matenda ndipo siziwola mosavuta.
4. Thermal katundu: HPMC ali wabwino matenthedwe bata ndipo akhoza kupirira kutentha kwa 200 ° C popanda kuwola.
5. Zochita zapamtunda: HPMC ili ndi zochitika zapamtunda chifukwa cha chilengedwe chake, zomwe zimapangitsa kuti zikhale zothandiza ngati dissperant ndi emulsifier mu ntchito zosiyanasiyana.
6. Hygroscopicity: HPMC ndi hygroscopic, kutanthauza kuti imakhala ndi chizolowezi chotengera chinyezi kuchokera ku chilengedwe. Katunduyu amapangitsa kuti ikhale yothandiza ngati chosungira madzi pakugwiritsa ntchito zosiyanasiyana.
7. Chemical reactivity: HPMC ndi inert ndi mankhwala ndipo samachita ndi mankhwala ena. Komabe, imatha kupanga zomangira za haidrojeni ndi mamolekyu ena a polar, zomwe zimapangitsa kuti zikhale zothandiza ngati zowuma, zomangira, komanso zopanga filimu pamagwiritsidwe osiyanasiyana.

Powombetsa mkota,Mtengo wa HPMCili ndi mankhwala angapo omwe amapangitsa kuti ikhale yosunthika komanso yothandiza polima m'mafakitale osiyanasiyana, kuphatikiza mankhwala, chakudya, zodzoladzola, ndi zomangamanga. Kusungunuka kwake, kukhuthala kwake, kukhazikika, kutentha, ntchito zapamtunda, hygroscopicity, ndi reactivity ya mankhwala zimapangitsa kuti zikhale zoyenera pa ntchito zosiyanasiyana.