1. Ubushushu beGel (isisombululo se-0.2%) 50-90 ° C.
2. Inyibilika emanzini kunye nobuninzi be-polar c kunye nomlinganiselo ofanelekileyo we-ethanol / amanzi, ipropanol / amanzi, i-dichloroethane, njl., enganyibilikiyo kwi-ether, i-acetone, i-ethanol epheleleyo, kwaye idumbe ibe yinto ecacileyo okanye encinci ye-turbid kwisisombululo se-colloidal yamanzi abandayo. Isisombululo samanzi sinomsebenzi ongaphezulu, ukukhanya okuphezulu kunye nokusebenza okuzinzileyo.
3. I-HPMC inepropati ye-thermal gelation. Imveliso yesisombululo se-aqueous ishushu ukuze yenze i-gel kunye ne-precipitates, kwaye idibanise emva kokupholisa. Ukushisa kwe-gelation yeenkcukacha ezahlukeneyo kuyahluka. Ukunyibilika kuyahluka kunye ne-viscosity. I-viscosity ephantsi, i-solubility enkulu. Iimpawu ezahlukeneyo ze-HPMC zineeyantlukwano ezithile kwiipropati zabo, kwaye ukuchithwa kwe-HPMC emanzini akuchatshazelwa yixabiso le-pH.
4. Ubungakanani be-particle: izinga lokupasa kwe-100 mesh likhulu kune-98.5%. Ubuninzi bobuninzi: 0.25-0.70g / (ngokuqhelekileyo malunga ne-0.4g /), ubunzima obuthile 1.26-1.31. Ubushushu bokutshintsha umbala: 180-200 ° C, ubushushu be-carbonization: 280-300 ° C. Ixabiso le-methoxyl livela kwi-19.0% ukuya kwi-30.0%, kwaye ixabiso le-hydroxypropyl livela kwi-4% ukuya kwi-12%. Viscosity (22°C, 2%) 5～200000mPa .s. Ubushushu bejeli (0.2%) ngu 50-90°C.
5. I-HPMC ineempawu zokukwazi ukuqina, ukukhutshwa kwetyuwa, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, ipropathi egqwesileyo yokwenza ifilimu kunye noluhlu olubanzi lokuxhathisa i-enzyme, i-dispersibility kunye nokubambisana.
Ixesha lokuposa: Mar-22-2023