Ka kakaretso, viscosity ea hydroxypropyl methylcellulose e phahame.Leha ho le joalo, e boetse e itšetlehile ka tekanyo ea ho fetola le karolelano ea tekanyo ea ho fetola.Hydroxypropyl methyl cellulose ke ea non-ionic cellulose ether, ponahalo ke phofo e tšoeu, e sa nkhang hamonate ebile ha e latsoehe, e qhibiliha ka metsing le li-solvents tse ngata tsa polar le karolo e nepahetseng ea ethanol / metsi, propanol / metsi, dichlorethylene Ha e qhibilihe ka har'a alkanes, acetone, le absolute ethanol, mme e kokomoha ho ba motswako o hlakileng kapa o senyehileng hanyenyane metsing a batang.Tharollo ea metsi e na le ts'ebetso ea holim'a metsi, e etsa filimi e tšesaane ka mor'a ho omisoa, e fetoha phetoho e fetohang ho tloha ho sol ho ea ho gel ka tatellano ha ho futhumala le ho pholile.Ponaletso e phahameng le tshebetso e tsitsitseng.
Hydroxypropyl methylcellulose e na le thepa ea gelation ea mocheso.Ka mor'a hore tharollo ea metsi ea sehlahisoa e futhumale, e etsa gel le precipitates, 'me e qhibiliha ka mor'a ho pholile.Mocheso oa gelation oa litlhaloso tse fapaneng o fapane.Sollubility e fapana ho ea ka viscosity.The viscosity e ka tlaase, e kholoanyane ea ho qhibiliha.Thepa ea hydroxypropyl methylcellulose e nang le litlhaloso tse fapaneng e fapane.Ho qhibiliha ha hydroxypropyl methylcellulose metsing ha ho amehe ke boleng ba pH.
Likarolo: E na le litšoaneleho tsa bokhoni ba ho tenya, ho tsoa letsoai, botsitso ba PH, ho boloka metsi, botsitso ba sebopeho, thepa e ntle haholo ea ho etsa lifilimi, ho hanyetsa li-enzyme, ho qhalana le ho momahana.
Ho boloka metsi ha lihlahisoa tsa hydroxypropyl methylcellulose hangata ho angoa ke lintlha tse latelang:
1. Ho tšoana ha hydroxypropyl methylcellulose
hydroxypropyl methylcellulose, methoxyl le hydroxypropoxyl tse sebetsang ka mokhoa o tšoanang li ajoa ka ho lekana, 'me sekhahla sa ho boloka metsi se phahame.
2. Hydroxypropyl methylcellulose mocheso oa mocheso oa gel
Ha mocheso oa gel o futhumatsang o phahame, sekhahla sa ho boloka metsi se phahame;ho seng joalo, sekhahla sa ho boloka metsi se ka tlase.
3. Viscosity ea hydroxypropyl methylcellulose
Ha viscosity ea hydroxypropyl methylcellulose e eketseha, lebelo la ho boloka metsi le lona le eketseha;ha viscosity e fihla boemong bo itseng, ho eketseha ha tekanyo ea ho boloka metsi ho atisa ho ba bonolo.
4. Palo ea hydroxypropyl methylcellulose e kenyelitsoeng
Ha palo e kholo ea hydroxypropyl methylcellulose e eketsoa, e phahamisa sekhahla sa ho boloka metsi le phello e ntle ea ho boloka metsi.Ho phaella ho 0.25-0.6%, tekanyo ea ho boloka metsi e eketseha ka potlako ka keketseho ea palo ea ho eketsa;ha palo ea tlatsetso e ntse e eketseha, mokhoa oa ho eketseha oa sekhahla sa ho boloka metsi oa fokotseha.
Nako ea poso: Mar-14-2023