Hydroxypropyl methylcellulose, 28-30% methoxyl, 7-12% hydroxypropyl

Litlhaloso tsa "28-30% methoxyl" le "7-12% hydroxypropyl" li bua ka tekanyo ea ho kenya sebaka.Hydroxypropyl methylcellulose(HPMC). Maemo ana a bontša hore na polymer ea pele ea cellulose e fetotsoe ka lik'hemik'hale hakae ka lihlopha tsa methoxyl le hydroxypropyl.

1. 28-30% Methoxyl:
   • Sena se bontša hore, ka karolelano, 28-30% ea lihlopha tsa pele tsa hydroxyl ka molek'hule ea cellulose li nketsoe sebaka ke lihlopha tsa methoxyl. Lihlopha tsa Methoxyl (-OCH3) li hlahisoa ho eketsa hydrophobicity ea polymer.
2. 7-12% Hydroxypropyl:
   • Sena se bolela hore, ka karolelano, 7-12% ea lihlopha tsa pele tsa hydroxyl ka molek'hule ea cellulose li nketsoe sebaka ke lihlopha tsa hydroxypropyl. Lihlopha tsa Hydroxypropyl (-OCH2CHOHCH3) li hlahisoa ho ntlafatsa ho qhibiliha ha metsi le ho fetola likarolo tse ling tsa 'mele le lik'hemik'hale tsa polymer.

Tekanyo ea ho kenya sebaka e susumetsa thepa ea HPMC le ts'ebetso ea eona lits'ebetsong tse fapaneng. Ka mohlala:

• Lintho tse ngata tsa methoxyl hangata li eketsa hydrophobicity ea polymer, e amang ho qhibiliha ha eona metsing le lisebelisoa tse ling.
• Lintho tse phahameng tsa hydroxypropyl li ka ntlafatsa ho qhibiliha ha metsi le thepa ea ho etsa filimi ea HPMC.

Litlhaloso tsena li bohlokoa ho hlophiseng HPMC ho fihlela litlhoko tse ikhethileng liindastering tse fapaneng. Mohlala, indastering ea meriana, khetho ea kereiti ea HPMC e nang le li-degree tse ikhethang tsa ho fetola e ka ama liprofinse tsa tokollo ea lithethefatsi mefuteng ea matlapa. Indastering ea kaho, e ka ama matla a ho boloka metsi le ho khomarela lihlahisoa tse thehiloeng ho samente.

Baetsi ba hlahisa limaraka tse fapaneng tsa HPMC ka li-degree tse fapaneng tsa phetisetso ho fihlela litlhoko tse fapaneng tsa lits'ebetso tse fapaneng. Ha o sebelisa HPMC ho liforomo, ho bohlokoa hore baetsi ba lihlahisoa ba nahane ka sehlopha se ikhethileng sa HPMC se ikamahanyang le thepa e lakatsehang le litšobotsi tsa ts'ebetso bakeng sa ts'ebeliso e reriloeng.