HPMC bụ a ukwuu dị ọcha owu cellulose dị ka akụrụngwa, n'okpuru alkaline ọnọdụ site pụrụ iche etherification na preparations.White ma ọ bụ whitish powder.HPMC mbelata na mbelata nke methoxide ọdịnaya, mmụba nke gel ebe, mbelata nke mmiri solubility na mbelata nke elu ọrụ.
HPMC nwere ikike ịgbara agba, nguzogide nnu, ntụ ntụ dị ala, nkwụsi ike pH, njigide mmiri, nkwụsi ike akụkụ, imepụta ihe nkiri mara mma, yana ọtụtụ nguzogide enzyme, mgbasa na adhesion.
HPMC, Hydroxypropyl Methylcellulose ụdị nke na-abụghị ionic cellulose ether, nke bụ ntụ ntụ nke na-acha ọcha na agbapụ na-acha ọcha agba, na-arụ ọrụ dị ka a thickener, ihe nkedo, film-emebu, surfactant, colloid nchebe, mmanu mmanu, emulsifier na nkwusioru na mmiri na-ejigide enyemaka.Tụkwasị na nke ahụ, e nwere ụdị cellulose ethers na-egosipụta njirimara nke gelation thermal, metabolic inertness, enzyme resistance, obere isi na uto, na PH kwụsie ike.
N'ihi ọtụtụ ihe onwunwe, a na-ejikarị HPMC dochie ọtụtụ ihe mgbakwunye ndị ọzọ na ntinye uche dị ala, na-eme ka HPMC bụrụ ihe mgbakwunye dị oke mma ma dị irè na mpaghara adhesives, ewu, nri, ngwaahịa ụlọ, ọgwụ na wdg.
| Aha ngwaahịa | HPMC | ||
| ọdịnaya nke metoxy | 28.0-30.0 27.0-30.0 19.0-24.0 | ||
| ọdịnaya nke hydroxypropyl | 7.0-12.0 4.0-7.5 4.0-12.0 | ||
| okpomọkụ nke gelation | 58-64 62-68 70-90 | ||
| mmiri mmiri | ≤5% | ||
| Ash | ≤1% | ||
| Uru PH | 4-8 | ||
| Ọdịdị | White ntụ ntụ | ||
| Mma | 80-100 ndepụta | ||
| Viscosity | 300-200,000 Enwere ike ịhazi ya | ||
| Re HPMC mụbara na methoxy ọdịnaya belata, gel point mmiri solubility na elu ọrụ jụkwara.Dabere na ọnọdụ ndị ahịa | |||
Oge nzipu: Mar-15-2021