Ka kakaretso, viscosity eahydroxypropyl methylcellulosee phahame, empa hape e itšetlehile ka tekanyo ea ho fetola le tekanyo ea karolelano ea ho fetola.Hydroxypropyl methylseluloseke non-ionic cellulose ether e nang le ponahalo ea phofo e tšoeu 'me ha e na Monko o monate le e sa latsoeheng, e qhibilihang ka metsing le ka bongata ba metsoako ea polar organic le likarolo tse loketseng tsa ethanol / metsi, propanol / metsi, dichloroethane, joalo-joalo, e sa qhibiliheng ka acetone le ethanol e feletseng, e ruruhile ho ba colloid e hlakileng kapa e koahetsoeng ke maru hanyane ka har'a motsoako oa metsi 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 filimi, ho hanyetsa li-enzyme, ho qhalana le ho momahana.
Theho boloka metsiLihlahisoa tsa hydroxypropyl methylcellulose hangata li 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 le holimo, lebelo la ho boloka metsi le phahame;Ho seng joalo, ho fokotsa sekhahla sa ho boloka metsi.
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: Aug-28-2023