Hydroxypropyl me cellulose (hpmc), omwe amadziwikanso ndi dzina la The Sporm HyPromellose, ndi poizor yopanga kuchokera ku cellulose wachilengedwe. Gwero lalikulu la cellulose popanga hpmc nthawi zambiri ndi mitengo yamoto kapena thonje. Njira yopangira yopanga imaphatikizapo kusinthasintha kwa mankhwalawa kudzera mu kusintha, kuyambitsa hydroxypropyl ndi methyl magulu am'madzi am'madzi a celluulose.

Kupanga kwa HPMC kumaphatikizapo njira zingapo:

1. Cellulose Echin:
   • Cellulose imapezeka kuchokera ku zomera, makamaka mitengo yazomera kapena thonje. Cellulose imachotsedwa ndikuyeretsedwa kuti cellulose zamkati.
2. Alkirization:
   • Cellulose zamkati zimathandizidwa ndi yankho la alkaline, nthawi zambiri sodium hydroxide (Naoh), kuti ayambitse magulu a hydroxyl pa unyolo wamtchire.
3. Kusintha:
   • Kusintha ndiye gawo lofunikira popanga hpmc. Cellulid cellulose imachitikanso ndi ma propeyg oxide (kwa hydroxypyl) ndi methyl chloride (magulu a methyl) kuti muyambitse magulu a etheuluuse.
4. Kusintha ndi kuchapa:
   • Zotsatira zosinthidwa, zomwe tsopano ndi hydroxypypyl methy celyolose, zimapangitsa kuti kulowerera ndale kuti zichotse alkali. Kenako padasambitsidwa bwino kwambiri kuti muthetse zodetsa komanso zopangidwa ndi zinthu.
5. Kuyanika ndi Kuthetsa:
   • Direlose yosinthidwa imawuma kuti ichotse chinyezi chambiri ndipo limakhala loyera kukhala ufa wabwino. Kukula kwa tinthu kumatha kulamulidwa kutengera ntchito yomwe mukufuna.

Zotsatira za HPMC ndi ufa woyera kapena wopanda ufa wokhala ndi madigiri osiyanasiyana a hydroxypyl ndi methyl. Zomwe zimapangidwira kwa HPMC, monga kususuka kwake, mamasukidwe, ndi zina mwa magwiridwe ena, zimadalira kuchuluka kwa zolowa m'malo mwazomera komanso kapangidwe kake.

Ndikofunikira kudziwa kuti HPMC ndi polymer polymer yopanga, ndipo ikachokera ku cellulose yosiyanasiyana, imagwirizana ndi zosintha zamankhwala popanga zomwe amapanga kuti mukwaniritse zomwe mukufuna pazogwiritsa ntchito zosiyanasiyana.