Methylcellulose (MC) le Hydroxypropyl Methylcellulose (HPMC) ka bobeli li sebelisoa ka mokhoa o tloaelehileng oa metsi a qhibilihang ka har'a selulose, e sebelisoang haholo lijong, meriana, kaho le tlhokomelo ea botho.
1. Liphapang tsa sebopeho
Methylcellulose (MC):
Methylcellulose ke derivative ea cellulose e fumanoeng ka ho nkela karolo ea lihlopha tsa hydroxyl tsa selulose ka methyl (-OCH3).
Sebopeho sa eona sa lik'hemik'hale se batla se le bonolo, haholo-holo se entsoe ka skeleton ea cellulose le sebaka sa methyl.
Hydroxypropyl Methylcellulose (HPMC):
HPMC e thehoa ka ho tsoela pele ho hlahisa motsoako oa hydroxypropyl (-C3H7O) motheong oa methylcellulose.
Phetoho ena ea sebopeho e etsa hore e be molemo haholoanyane mabapi le likarolo tsa solubility le viscosity metsing.
2. Sollubility
Methylcellulose e qhibiliha habonolo metsing a batang, empa ha e qhibilihe habonolo metsing a chesang, 'me hangata e bontša tlhaho ea colloidal. Sena se etsa hore thepa ea MC e fetohe ha mocheso o phahama.
Hydroxypropyl Methylcellulose e ka qhibiliha hantle metsing a batang le a chesang, 'me ho qhibiliha ha eona ho molemo ho feta methylcellulose. HPMC e ntse e ka boloka ho qhibiliha ha eona ha metsi ka mocheso o phahameng 'me e loketse lits'ebetso tse hlokang kalafo ea mocheso.
3. Litšobotsi tsa viscosity
Methylcellulose e na le viscosity e batlang e le tlaase 'me e loketse libopeho tse sa hlokeng viscosity e phahameng.
Hydroxypropyl methylcellulose e na le viscosity e phahameng 'me e ka fetoloa ka ho fetola boima ba eona ba molek'hule le tekanyo ea ho fetola. Sena se etsa hore HPMC e fetohe habonolo lits'ebetsong tse fapaneng, haholo indastering ea kaho le ea meriana.
4. Libaka tsa kopo
Methylcellulose e atisa ho sebelisoa indastering ea lijo e le motenya, emulsifier le stabilizer, hape e sebelisoa lihlahisoa tse ling tsa meriana e le thepa ea ho roala lithethefatsi.
Hydroxypropyl methylcellulose e na le ts'ebeliso e pharaletseng. Ntle le lijo le meriana, e boetse e sebelisoa haholo ho thepa ea mohaho (e kang seretse se omeletseng) le lihlahisoa tsa tlhokomelo ea botho (joaloka litlolo tsa letlalo le li-shampoo) ka lebaka la thepa ea eona e ntle ea ho etsa lifilimi le ho khomarela.
5. Litšobotsi tsa ts'ebetso
Methylcellulose e na le mekhoa e metle ea ho boloka metsi le thepa ea ho etsa filimi 'me hangata e sebelisoa lihlahisoa tse hlokang ho boloka mongobo.
Hydroxypropyl methylcellulose e na le mocheso o motle oa ho hanyetsa mocheso le thepa e ntle ea ho etsa filimi ho phaella ho boloka metsi, kahoo e sebetsa hamolemo ho likopo tse nang le phekolo e phahameng ea mocheso.
6. Tšireletseho le botsitso
Ka bobeli ke li-additives tse se nang chefo 'me ka kakaretso li nkoa li bolokehile. Leha ho le joalo, HPMC e kanna ea ratoa lits'ebetsong tse itseng ka lebaka la botsitso ba eona bo betere le ho lumellana.
Methylcellulose le hydroxypropyl methylcellulose li fapane haholo ka sebopeho sa lik'hemik'hale, solubility, litšobotsi tsa viscosity le libaka tsa kopo. Khetho ea thepa e loketseng hangata e itšetlehile ka litlhoko tsa kopo e itseng. MC e loketse lits'ebetso tse bonolo tsa ho tiisa le ho tsitsisa, athe HPMC e loketse lits'ebetso tse rarahaneng tsa indasteri le tsa khoebo ka lebaka la matla a eona a ho solubility a phahameng le a viscosity.
Nako ea poso: Oct-21-2024