HPMC (hydroxypropyl methylcellulose) ke lintho tse sebelisoang ka tloaelo tse se nang ionic tse qhibilihang ka metsing, tse sebelisoang haholo ho etsa meriana, lijo, kaho, tlhokomelo ea botho le masimo a mang.
1. Lintho tsa sebopeho
Sebopeho sa limolek'hule tsa HPMC se na le viscosity e phahameng le thepa e ntle ea rheological. Ho na le lihlopha tse ngata tsa hydroxyl (-OH) ho ketane ea eona ea limolek'hule, tse ka etsang likamano tsa hydrogen le limolek'hule tsa metsi, e le hore HPMC e ka qhibiliha ka katleho metsing ho etsa tharollo ea colloidal e phahameng ea viscosity. Thepa ena e lumella HPMC hore e be motenya ka nepo le ho eketsa viscosity ea sehlahisoa.
2. Thickening phello
Phello e matla ea HPMC e finyelloa haholo ka ho sebelisana ha liketane tsa eona tsa limolek'hule. Ha HPMC e qhibiliha ka metsing, liketane tsa limolek'hule li tla kopana ho theha mohaho oa marang-rang, kahoo li eketsa viscosity ea tharollo. Phello ena e teteaneng e bonahala ka ho khetheha lihlahisoa tsa metsi (tse kang lino, li-condiments) le lihlahisoa tsa ho pata (tse kang mafura, lihlahisoa tsa tlhokomelo ea letlalo), tse ka ntlafatsang tatso le ho sebelisa phihlelo ea sehlahisoa.
3. Botsitso bo ntlafetseng
Ka ho eketsa viscosity, HPMC e ka boela ea ntlafatsa botsitso ba sehlahisoa. Libakeng tse ngata tsa li-suspensions le li-emulsions, ho eketseha ha viscosity ho ka thibela sedimentation le ho arohana ha mekhahlelo ea likaroloana tse tiileng, kahoo ho boloka ho tšoana le ponahalo ea sehlahisoa. Ka mohlala, ka liphahlo le li-adhesives, tšebeliso ea HPMC e ka ntlafatsa botsitso ba rheological ea sehlahisoa le ho thibela ho hlaha ha sedimentation le stratification.
4. Ts'ebetso ea tokollo e laoloang
Lefapheng la meriana, HPMC hangata e sebelisoa e le karolo ea litsamaiso tse laoloang ke lithethefatsi. Ka ho lokisa boima ba mahloriso le limolek'hule tsa HPMC, tokollo e tsitsitseng le e laoloang ea lithethefatsi e ka finyelloa. Thepa ea ho ruruha ea HPMC metsing e lumella sekhahla sa ho lokolloa ha lithethefatsi 'meleng hore se laoloe, ka tsela eo ho ntlafatsa katleho ea lithethefatsi le ho fokotsa litla-morao.
5. Ho ikamahanya le maemo ho pharaletseng
HPMC e ntse e ka boloka thepa e ntle ea ho tenya tikolohong e nang le boleng bo fapaneng ba pH le matla a ionic, a etsang hore e sebetse ka mekhoa e mengata e rarahaneng. Ebang ke acidic, alkaline kapa neutral system, HPMC e ka fana ka viscosity e tsitsitseng le ho ntlafatsa ho sebetsa ha sehlahisoa.
6. Katleho e tlaase ea mahloriso
Ha ho bapisoa le li-thickeners tse ling, HPMC e khona ho eketsa viscosity maemong a tlase, ho fokotsa litšenyehelo tsa tlhahiso. Ka nako e ts'oanang, khatello ena e tlaase e ka fokotsa tšusumetso ho lisebelisoa tse ling le ho boloka ho feto-fetoha ha maemo le botsitso ba foromo.
7. Lintho tse susumetsang
Tšusumetso e matla ea HPMC e angoa ke lintlha tse ngata, ho kenyelletsa le mofuta oa HPMC (joalo ka boima bo fapaneng ba molek'hule, sebaka sa hydroxyl), mocheso oa tharollo, khatello ea ion, joalo-joalo. ea sehlahisoa ho fihlela phello e ntle ka ho fetisisa ea viscosity.
8. Mehlala ea tšebeliso
Ka indasteri ea lijo, HPMC hangata e sebelisoa ho etsa lijo tse mafura a tlase le lihlahisoa tsa lebese ho thusa ho ntlafatsa tatso le botsitso. Ka indasteri ea kaho, HPMC e sebelisoa ka thepa e thehiloeng ho samente ho ntlafatsa ho khomarela le ho sebetsa. Lefapheng la meriana, HPMC e sebelisoa haholo matlapeng, li-capsules le mefuta e fapaneng ea litekanyetso ho ntlafatsa metsi le botsitso ba tsona.
Karolo ea HPMC ho ntlafatsa viscosity ea sehlahisoa e ke ke ea nyenyefatsoa. Thepa ea eona e ikhethang ea 'mele le ea lik'hemik'hale e etsa hore e be motenya oa bohlokoa le ho tsitsisa liindasteri tse ngata. Ha u khetha le ho sebelisa HPMC, hoa hlokahala ho etsa litekanyo tse lekaneng le ho sebelisa ho latela litšobotsi le litlhoko tsa lihlahisoa tse ikhethileng ho fana ka papali e felletseng molemong oa eona.
Nako ea poso: Oct-21-2024