Hydroxypropypropinyl MethylcellPulose (HPMC, hydroxypropypropypropyLe methylcelllulose) ke thepa ea polymer e sebelisoang haholo thepa ea ho haha, meriana, lijo le masimo a mang. E khahla haholo ka lebaka la thepa ea eona e ikhethang ea metsi a ikhethang. Ho entoa ea metsi ho ama ts'ebetso ea sehlahisoa le phello ea eona ea kopo, kahoo ho bohlokoa ho sekaseka ka nepo ts'ebetso ea ho boloka metsi ka nepo ea HPMC.
1. Sebopeho sa lik'hemik'hale le boima ba limolek'hule
1.1 Sebopeho sa lik'hemik'hale
HPMC ke polymer e fetotsoe ke methylcelllulose (MC) karolo (MC) Karolo le hydroxyproppyl (HP) Karolo. Ho leka-lekana ha lihlopha tsa hydrophilic (joalo ka li-hydroxyl le lihlopha tsa mekhoa ea hydromplic HPMC e nang le li-degree tse fapaneng tsa sebaka e tla ba le phapang e kholo bophahamong ba eona ba ho ts'oaroa ka metsing ka lebaka la palo e fapaneng le kabo ea lihlopha tsa hydrophilic. Kakaretso e phahameng ea sebaka sa hydroxypropyl ka kakaretso e ntlafatsa ts'ebetso ea ho boloka metsi ea HPMC.
1,2 boima ba limolek'hule
Boima ba moleng ke ntho e 'ngoe ea bohlokoa e amang ts'ebetso ea HPMC. Ka kakaretso, HPMC e nang le boima bo phahameng ba molek'hule e etsa sebopeho se matla sa marang-rang ka tharollo, e ka tšoarellang le ho boloka mongobo hantle. Leha ho le joalo, haholoholo tse phahameng haholo haholo li ka lebisa khopolo e mpe, e sa tsamaise likopo tse sebetsang.
2. Fulubility
Khoebo ea HPMC ka metsing e ama ho ikoetlisa ka metsi. HPMC e bonts'a litsie tse ntle ka metsing a batang, e etsa tharollo e pepeneneng kapa e nyane ea colloidal ea colloidal. Stubility ea eona e angoa ke mocheso, ph le khatello ea maikutlo.
Mocheso: HPMC e na le lisosa tse ntle ka lithemparetjha tse tlase, empa gelation e ka hlaha mochesong o phahameng, a fokotsa ts'ebetso ea metsi a ho boloka metsi.
PH Palo ea PH: HPMC e na le lisosa tse phahameng ka ho fetesisa tsa ho se nke lehlakore kapa ka mokhoa o fokolang. Tlas'a maemo a acidic kapa a alkaline, ho boloka metsi ho ka ameha.
Tlhokomelo ea electrolyte: Khatello ea motlakase e phahameng e tla fokolisa ts'ebetso ea HPMC hobane li-hydrolyte li ka sebelisana le molek'hule ea HPMC, ho ama bokhoni ba eona sa ho tlama metsi.
3. Viscosity Viscosity
Tharollo ea tharollo ke sesupo sa bohlokoa ho lekanya ts'ebetso ea ho boloka metsi ho HPMC. Litaba tsa tharollo ea HPMC li khethoa haholo ke boima ba sona ba limolek'hule le khatello ea maikutlo. Tharollo ea HPMCH ea HPMC e ka theha marang-rang a tsitsitseng haholoanyane mme a thusa ho ntlafatsa metsi. Leha ho le joalo, boemo bo phahameng haholo ba bona ba ka baka mathata ho sebetsa le ho a sebelisa, kahoo tekanyo e lekanyetsoang, ho hlokahala hore ho fumanoe lipakeng tsa metsi le ts'ebetso ea metsi.
4. Matla a litlatsetso
Lithibinete: tse kang litlolo tsa cellulose le gum, li ka ntlafatsa ho bolokoa ka metsing ka HPMC ka ho ntlafatsa sebopeho sa marang-rang sa hydiation.
Liphatlalatso: tse kang tsa Glycerol le Ethylene, li ka eketsa maemo le khatello ea maemo le ho thusa ho ntlafatsa thepa ea ho boloka metsi.
Moemeli oa likuking: joalo ka hlama, e ntlafatsa matla a tharollo ea HPMC ka ho hokela bokhoni ba eona ba metsi.
5. Ts'ebetso ea Boitokiso
Mokhoa oa tharollo: HPMC e qhibilitsoa ka metsing ebe e lokisoa ka ho futhumatsa, e le mouoane, ho omella ho omella le mekhoa e mene. Ts'ebetso ea ho lokisa metsi ea ho boloka metsi e amana haufi le taolo ea mocheso le tsamaiso ea mahloriso nakong ea khefu ea khefulolo.
Mokhoa o omileng: Ho kenyelletsa mokhoa o omileng oa phofo, mokhoa oa ho qhibiliha, o ntlafatsa ts'ebetso ea HPMC ka ho kopanya ha 'mele kapa oa lik'hemik'hale. Ts'ebetso ea eona ea ho Boloka Metsi e angoa ke lintlha tse kang mocheso oa ho itokisa le nako ea ho kopanya.
6. Maemo a tikoloho
Maemo a tikoloho a HPMC nakong ea kopo, joalo ka ts'ebeliso, mongobo, le eena o tla ama ts'ebetso ea eona ea ho boloka metsi.
Mocheso: Ka tikoloho e phahameng ea mocheso, HPMC e kanna ea nyenyefatsa kapa gel, e fokotsa bokhoni ba eona ba metsi.
Motsoako: Sebakeng se phahameng sa mongobo, HPMC li ka monya mongobo ho feta mongobo oa metsi, empa mongobo o fetelletseng oa sehlahisoa.
Leseli la Ultraviolet: Ho pepesetsoa ha nako e telele ho leseli ho ka baka HPMC ho e nyenyefatsa le ho fokotsa thepa ea eona ea metsi.
7. Libaka tsa kopo
Masimo a fapaneng a kopo a na le litlhoko tse fapaneng bakeng sa ts'ebetso ea metsi a bolokiloeng ea HPMC. Tšimong ea thepa ea moaho, HPMC e sebelisoa e le moemeli oa metsi, le ts'ebetso ea metsi a metsi a bolotsana le ho senya seretse. Tšimo ea metheong ea meriana, hpmc hangata e sebelisoa e le thepa ea makhapetla ea Letlapa, le thepa ea eona ea metsi a ho boloka metsi a ama lebelo la ho senya le ho lokolla litseleng tsa matlafatso. Tšimong ea lijo, HPMC e sebelisoa e le tlhekene ea thipa ebile e le thata, le thepa ea eona ea metsi ea metsi a bolokiloeng metsing a ama tatso le sebopeho sa sehlahisoa.
8. Mekhoa ea tlhahlobo
Tekanyo ea ho amohela metsi: Lekola ts'ebetso ea ho boloka metsi a HPMC ka ho lekanya phetoho ea boima ba metsi ka nako e itseng.
Tekanyo ea metsi a metsi: Lekola ts'ebetso ea ho ts'oaroa ka metsi ha ts'ebeliso ea hau ea metsi ka lebaka la ho theola metsi le maemo a mongobo.
Boikemisetso bo bobe ba metsi: Ts'ebetso e tšoereng metsi a HPMC e hlahlojoa ka ho sekaseka bokhoni ba eona ba ho tšoara metsi tlasa maemo a fapaneng a shelle.
The water retention performance of HPMC is determined by various factors such as its chemical structure, molecular weight, solubility, solution viscosity, influence of additives, preparation process, environmental conditions and application fields. Litšitisong tse sebetsang, lintlha tsena li hloka ho bakoa ha ho hlahlojoa mofuta le ts'ebetso ea HPMC ho fihlella ts'ebetso ea metsi hantle ea metsi. Ka moralo o loketseng oa foromo le taolo ea ts'ebetso, ts'ebetso ea ho boloka metsi ho HPMC e ka sebelisoa ka botlalo mme boleng le ts'ebetso ea sehlahisoa li ka ntlafatsoa.
Poso: Hlakubele-17-2025