1. Ijeli lokushisa (0.2% isisombululo) 50-90°C.
2. Incibilika emanzini kanye nengxenye enkulu ye-polar c nengxenye efanele ye-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane, njll., ayincibiliki ku-ether, i-acetone, i-ethanol ephelele, futhi ikhukhumale ibe i-colloidal ecacile noma kancane emanzini abandayo. Isixazululo esinamanzi sinomsebenzi ongaphezulu, ukukhanya okuphezulu nokusebenza okuzinzile.
3. I-HPMC inendawo ye-thermal gelation. Isixazululo se-aqueous somkhiqizo siyashiswa ukuze senze ijeli futhi sikhuphuke, bese siyancibilika ngemva kokupholisa. Izinga lokushisa le-gelation lokucaciswa okuhlukile lihlukile. I-Solubility iyahlukahluka ngokuya nge-viscosity. I-viscosity ephansi, i-solubility enkulu. Ukucaciswa okuhlukile kwe-HPMC kunomehluko othile ezimpahleni zayo, futhi ukuhlakazwa kwe-HPMC emanzini akuthintwa inani le-pH.
4. Usayizi wezinhlayiya: izinga lokuphasa le-100 mesh likhulu kuno-98.5%. Ukuminyana kwenqwaba: 0.25-0.70g/ (imvamisa cishe ku-0.4g/), amandla adonsela phansi athile 1.26-1.31. Izinga lokushisa lokushintsha umbala: 180-200°C, izinga lokushisa le-carbonization: 280-300°C. Inani le-methoxyl lisukela ku-19.0% ukuya ku-30.0%, futhi inani le-hydroxypropyl lisukela ku-4% ukuya ku-12%. I-Viscosity (22°C, 2%) 5～200000mPa .s. Izinga lokushisa lejeli (0.2%) lingu-50-90°C.
5. I-HPMC inezici zekhono lokuqina, ukukhipha usawoti, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, impahla enhle kakhulu yokwenza ifilimu kanye nobubanzi obubanzi bokumelana nama-enzyme, ukuhlakazeka nokuhlangana.
Isikhathi sokuthumela: Mar-22-2023