Cellulose ether ke lentsoe le akaretsang bakeng sa letoto la lihlahisoa tse hlahisoang ke karabelo ea alkali cellulose le etherifying agent tlasa maemo a itseng.Alkali cellulose e nkeloa sebaka ke li-etherifying agents tse fapaneng ho fumana tse fapanengli-cellulose ethers.Ho latela thepa ea ionization ea li-substituent, cellulose ethers e ka aroloa ka mekhahlelo e 'meli: ionic (joalo ka carboxymethyl cellulose) le non-ionic (joalo ka methyl cellulose).Ho latela mofuta oa substituent, cellulose ether e ka aroloa ka monoether (joalo ka methyl cellulose) le ether e tsoakiloeng (joalo ka hydroxypropyl methyl cellulose).Ho ea ka solubility e fapaneng, e ka aroloa ka metsi a qhibilihang (joalo ka hydroxyethyl cellulose) le organic solvent-soluble (joalo ka ethyl cellulose), joalo-joalo. e arotsoe ka mofuta oa hang-hang le mofuta o tšoaroang ka holim'a nako e liehang ho qhibiliha.
Ka mor'a hore cellulose ether ka seretse e qhibilihe ka metsing, kabo e sebetsang le e ts'oanang ea lisebelisoa tsa samente tsamaisong e tiisitsoe ka lebaka la mosebetsi oa holim'a metsi, 'me cellulose ether, e le colloid e sireletsang, "e phuthela" likaroloana tse tiileng le likoahelo. bona bokantle bo kantle.Theha filimi ea lubricating, etsa hore tsamaiso ea seretse e be e tsitsitseng haholoanyane, hape e ntlafatse ho phalla ha seretse nakong ea ho kopanya le ho boreleli ha mohaho.
Ka lebaka la sebopeho sa eona sa limolek'hule, tharollo ea cellulose ether e etsa hore metsi a seretse a se ke a lahleheloa ke bonolo, 'me butle-butle a e lokolla ka nako e telele, e leng se etsang hore seretse se be le ho boloka metsi hantle le ho sebetsa hantle.
Seretse sa samente sa fatše se ikemetseng, se nang le viscosity e tlase ea hydroxypropyl methylcellulose ether.Kaha mobu oohle o lekanngoe ka tlhaho ka ho kenella ho fokolang ke basebetsi ba kaho, ha ho bapisoa le mokhoa o fetileng oa ho theola matsoho, ho bata le lebelo la kaho li ntlafatsoa haholo.Nako ea ho kopanya e omeletseng e nka monyetla oa ho boloka metsi a hydroxypropyl methylcellulose.Kaha ho itokisa ho hloka hore seretse se ferekantsoeng ka ho lekana se iketsetse fatše, metsi a batla a le maholo.Ka mor'a ho eketsa hpmc, e tla laola fatše Ho boloka metsi a holim'a metsi ha ho totobetse, e leng se etsang hore matla a holim'a metsi a be holimo ka mor'a ho omisa, 'me ho fokotseha ho nyane, ho fokotsang mapetsong.Ho eketsoa ha HPMC ho boetse ho fana ka viscosity, e ka sebelisoang e le thuso e khahlanong le sedimentation, ho matlafatsa metsi le ho pompa, le ho ntlafatsa katleho ea ho betla fatše.
Ether e ntle ea cellulose e na le boemo bo hlakileng ba pono le bongata bo bonyenyane ba bongata;HPMC e hloekileng e na le bosoeu bo botle, lisebelisoa tse sebelisoang tlhahisong li hloekile, karabelo e nepahetse haholoanyane ebile ha e na litšila, tharollo ea metsi e hlakile, phetisetso ea leseli e phahame, 'me ha ho na ammonia, starch le joala.Tatso, fibrous tlas'a microscope kapa magnifying glass.
Nako ea poso: Dec-06-2022