Hydroxypropyl methylcellulose (HPMC)bụ ether cellulose na-abụghị ionic nke a na-ejikarị eme nri, ọgwụ, ihe owuwu na ubi ndị ọzọ. A na-eme ya site na cellulose eke site na nhazi kemịkalụ dị ka alkalization na etherification, ma nwee àgwà ndị a bụ isi:
4. Environmental na biocompatibility
Nchedo gburugburu ebe obibi: HPMC bụ ihe na-emebi emebi nke na-emetụta gburugburu ebe obibi.
Nchekwa ndu: Dị ka ihe mgbakwunye nri na ọgwụ, ọ nwere ezigbo biocompatibility na ọ naghị egbu egbu na enweghị mmerụ ahụ.
5. Mgbanwe nke ihe anụ ahụ
Enwere ike gbanwee akụrụngwa nke HPMC (dị ka viscosity na gel okpomọkụ) site na ịhazigharị ogo nke nnọchi ya (ọdịnaya nke methoxy na otu hydroxypropyl) iji zute ngwa dị iche iche chọrọ.
6. Chemical mgbochi
Nguzogide nnu: Ọ na-akwụsi ike n'otu akụkụ nke ngwọta nnu.
Enzymatic eguzogide: E jiri ya tụnyere eke cellulose, HPMC nwere ike iguzogide enzymatic hydrolysis.
Hydroxypropyl methylcellulose ejirila ọtụtụ ụlọ ọrụ dị ka nri, ọgwụ, na ihe owuwu n'ihi njirimara anụ ahụ na nke kemịkal ya, njirimara multifunctional, yana ngwa ngwa. Mmiri ya pụrụ iche nke solubility, njupụta, njigide mmiri, na ihe ndị na-emepụta ihe nkiri na-eme ka ọ bụrụ ihe a na-apụghị dochie anya na ihe dị mkpa.
Oge nzipu: Nov-29-2024