Cov Tshuaj Pab Txhawb
Hydroxypropyl methylcellulose (HPMC) yog dawb los yog mis nyuj dawb, tsis muaj ntxhiab, tsis muaj saj, hmoov fibrous lossis granule, qhov hnyav poob thaum ziab tsis tshaj 10%, soluble hauv dej txias tab sis tsis yog dej kub, maj mam hauv dej kub o, peptization, thiab tsim cov kua colloidal viscous, uas dhau los ua cov kua thaum txias, thiab dhau los ua gel thaum cua sov. HPMC tsis yaj hauv ethanol, chloroform thiab ether. Nws yaj hauv cov kuab tshuaj sib xyaw ntawm methanol thiab methyl chloride. Nws kuj yaj hauv cov kuab tshuaj sib xyaw ntawm acetone, methyl chloride thiab isopropanol thiab qee cov kuab tshuaj organic. Nws cov kua aqueous tuaj yeem tiv taus ntsev (nws cov kua colloidal tsis raug rhuav tshem los ntawm ntsev), thiab pH ntawm 1% kua aqueous yog 6-8. Cov mis molecular ntawm HPMC yog C8H15O8-(C10H18O6)-C815O, thiab qhov hnyav molecular yog li 86,000.
HPMC muaj peev xwm yaj tau zoo heev hauv dej txias. Nws tuaj yeem yaj rau hauv cov kua pob tshab nrog me ntsis do hauv dej txias. Ntawm qhov tsis sib xws, nws yeej tsis yaj hauv dej kub saum 60 ℃ thiab tsuas yog tuaj yeem o. Nws yog cov cellulose ether tsis-ionic. Nws cov kua tsis muaj ionic them, tsis cuam tshuam nrog cov ntsev hlau lossis cov organic ionic, thiab tsis teb nrog lwm cov khoom siv raw thaum lub sijhawm npaj; nws muaj cov khoom tiv thaiv kev ua xua muaj zog, thiab nrog kev nce qib ntawm qib kev hloov pauv hauv cov qauv molecular, nws tiv taus kev ua xua ntau dua thiab ruaj khov dua; nws kuj yog metabolically inert. Ua ib qho tshuaj excipient, nws tsis metabolized lossis nqus. Yog li ntawd, nws tsis muab calories hauv cov tshuaj thiab cov khoom noj. Nws yog calorie tsawg, tsis muaj ntsev, thiab tsis muaj ntsev rau cov neeg mob ntshav qab zib. Cov tshuaj thiab cov khoom noj ua xua muaj kev siv tshwj xeeb; nws ruaj khov rau cov kua qaub thiab alkalis, tab sis yog tias tus nqi PH tshaj 2 ~ 11 thiab cuam tshuam los ntawm qhov kub siab dua lossis muaj sijhawm khaws cia ntev dua, nws cov viscosity yuav txo qis; Nws cov kua dej tuaj yeem muab kev ua haujlwm ntawm qhov chaw, qhia txog qhov nruab nrab ntawm qhov chaw thiab qhov sib txuas ntawm qhov chaw; nws muaj kev ua haujlwm zoo hauv ob-theem system, tuaj yeem siv ua tus stabilizer zoo thiab tiv thaiv colloid; nws cov kua dej muaj cov khoom zoo heev rau kev tsim zaj duab xis, nws yog ib qho ntsiav tshuaj thiab ntsiav tshuaj Ib qho khoom siv zoo txheej. Cov zaj duab xis txheej tsim los ntawm nws muaj qhov zoo ntawm kev tsis muaj xim thiab kev tawv. Ntxiv glycerin kuj tseem tuaj yeem txhim kho nws cov plasticity.
Cov khoom AnxinCel® HPMC tuaj yeem txhim kho los ntawm cov yam ntxwv hauv qab no hauv Pharmaceutical Excipient:
Thaum yaj tau hauv dej thiab yaj los ntawm cov kuab tshuaj, HPMC ua cov zaj duab xis pob tshab nrog lub zog tensile siab.
· Ua kom muaj zog ntawm kev sib txuas.
· Cov hydrophilic matrix siv nrog rau HPMC hydrates los tsim ib txheej gel, tswj cov qauv tso tawm tshuaj.
| Pom zoo qib: | Thov TDS |
| HPMC 60AX5 | Nyem qhov no |
| HPMC 60AX15 | Nyem qhov no |