1. Hydroxypropyl methylcellulose (HPMC)ke non-ionic cellulose ether e entsoeng ka fiber ea tlhaho ea k'hothone kapa makhasi a lehong ka letoto la mekhoa ea ho sebetsana le lik'hemik'hale tse kang alkalization, etherification, le ho hloekisa. Ho latela viscosity ea eona, HPMC e ka aroloa ka viscosity e phahameng, viscosity e mahareng, le lihlahisoa tse tlase tsa viscosity. Har'a tsona, HPMC e nang le viscosity e tlase e sebelisoa haholo libakeng tse ngata ka lebaka la ho qhibiliha ha eona ka metsi, thepa ea ho etsa lifilimi, lubricity le botsitso ba ho hasana.
2. Litšobotsi tsa motheo tsa viscosity e tlaase HPMC
Sollubility ea metsi: Low viscosity HPMC e qhibiliha habonolo metsing a batang 'me e ka etsa tharollo ea viscous e bonaletsang kapa e feto-fetohang, empa ha e qhibilihe metsing a chesang le ka bongata ba lihlapolli tsa lintho tse phelang.
Viscosity e tlaase: Ha e bapisoa le HPMC e bohareng le e phahameng ea viscosity, tharollo ea eona e na le viscosity e tlaase, hangata 5-100mPa·s (2% tharollo ea metsi, 25 ° C).
Botsitso: E na le botsitso bo botle ba lik'hemik'hale, e batla e mamella li-acids le alkalis, 'me e ka boloka ts'ebetso e tsitsitseng ka pH e pharaletseng.
Thepa ea ho etsa filimi: E ka etsa filimi e ts'oanang holim'a li-substrates tse fapaneng, tse nang le litšitiso tse ntle le thepa ea ho khomarela.
Lubricity: E ka sebelisoa e le setlolo ho fokotsa khohlano le ho ntlafatsa ts'ebetso ea thepa.
Ts'ebetso ea bokaholimo: E na le bokhoni bo itseng ba emulsification le ho hasanya, 'me e ka sebelisoa lits'ebetsong tsa botsitso ba ho emisa.
3. Libaka tsa kopo tsa HPMC e tlaase-viscosity
Lisebelisoa tsa ho haha
Seretse le putty: Ka seretse se omeletseng, seretse se itekang, le seretse se polasterang, HPMC e nang le viscosity e tlase e ka ntlafatsa ts'ebetso ea kaho, ea ntlafatsa mokelikeli le lubricity, ea ntlafatsa ho boloka metsi a seretse, le ho thibela ho phatloha le delamination.
Sekhomaretsi sa lithaele: E sebelisoa e le sekontiri le se tlamang ho ntlafatsa boiketlo ba kaho le matla a tlamahano.
Liaparo le lipente: Joalo ka sekontiri se teteaneng le se emisang, se etsa hore seaparo se koalehe, se thibela sedimentation ea 'mala,' me se ntlafatsa ho phunya le ho leka-lekanya thepa.
Meriana le lijo
Li-excipients tsa meriana: HPMC e nang le viscosity e tlase e ka sebelisoa ho koahela letlapa, li-agent tse lokollang ka nako e telele, li-suspensions, le li-capsule fillers indastering ea meriana ho tsitsisa, ho qhibiliha le ho lokolloa butle.
Li-additives tsa lijo: li sebelisoa e le li-thickeners, li-emulsifiers, li-stabilizers ts'ebetsong ea lijo, joalo ka ho ntlafatsa tatso le sebopeho sa thepa e halikiloeng, lihlahisoa tsa lebese le lero.
Litlolo le lihlahisoa tsa tlhokomelo ea botho
Ka lihlahisoa tsa tlhokomelo ea letlalo, lihlahisoa tsa sefahleho, li-conditioner, li-gel le lihlahisoa tse ling, HPMC e ka sebelisoa e le motenya le moisturizer ho ntlafatsa sebopeho sa sehlahisoa, ho etsa hore ho be bonolo ho sebelisa le ho ntlafatsa boiketlo ba letlalo.
Ceramics le ho etsa pampiri
Indastering ea ceramic, HPMC e ka sebelisoa e le setlolo le thuso ea ho bopa ho ntlafatsa mokelikeli oa seretse le ho ntlafatsa matla a 'mele.
Ka indasteri ea ho etsa pampiri, e ka sebelisoa bakeng sa ho roala pampiri ho ntlafatsa boreleli ba bokaholimo le ho ikamahanya le maemo ha pampiri.
Temo le tshireletso ya tikoloho
Low viscosity HPMC e ka sebelisoa ho emisa chefo e bolaeang likokoanyana ho ntlafatsa botsitso ba lithethefatsi le ho eketsa nako ea ho lokolloa.
Linthong tse nang le botsoalle ba tikoloho, tse kang li-additives tsa ho hloekisa metsi, li-suppressants tsa lerōle, joalo-joalo, li ka ntlafatsa botsitso ba ho hasana le ho ntlafatsa phello ea tšebeliso.
4. Tšebeliso le polokelo ea viscosity e tlaase ea HPMC
Mokhoa oa tšebeliso
Low viscosity HPMC e atisa ho fanoa ka phofo kapa foromo ea granular 'me e ka qhalakanngoa ka ho toba metsing bakeng sa tšebeliso.
Ho thibela agglomeration, ho kgothaletswa ho eketsa butle-butle HPMC metsing a batang, ho hlohlelletsa ka ho lekana ebe mocheso ho qhibiliha ho fumana phello e ntle ea ho qhibiliha.
Ka foromo e omeletseng ea phofo, e ka tsoakoa ka ho lekana le lisebelisoa tse ling tse phofshoana ebe e kenngoa metsing ho ntlafatsa ts'ebetso ea ho qhibiliha.
Litlhoko tsa polokelo
HPMC e lokela ho bolokoa sebakeng se omeletseng, se phodileng, se nang le moea o motle ho qoba mocheso o phahameng le mongobo.
Qoba hole le li-oxidants tse matla ho thibela liphetoho tsa lik'hemik'hale ho baka liphetoho tsa ts'ebetso.
Mocheso oa polokelo o khothaletsoa hore o laoloe ho 0-30 ℃ le ho qoba khanya ea letsatsi e tobileng ho netefatsa botsitso le bophelo ba ts'ebeletso ea sehlahisoa.
Viscosity e tlase ea hydroxypropyl methylcellulosee na le karolo ea bohlokoa liindastering tse ngata tse kang thepa ea kaho, meriana le lijo, litlolo, ho etsa pampiri ea ceramic, le tšireletso ea tikoloho ea temo ka lebaka la ho qhibiliha ha eona ha metsi, mafura, ho boloka metsi le thepa ea ho etsa lifilimi. Litšobotsi tsa eona tse tlaase tsa viscosity li etsa hore e be e loketseng haholoanyane bakeng sa maemo a kopo a hlokang metsi, ho qhalana le botsitso. Ka nts'etsopele e tsoelang pele ea theknoloji ea indasteri, sebaka sa ts'ebeliso ea viscosity e tlase ea HPMC e tla atolosoa le ho feta, 'me e tla bonts'a litebello tse pharalletseng tsa ho ntlafatsa ts'ebetso ea sehlahisoa le ho ntlafatsa lits'ebetso tsa tlhahiso.
Nako ea poso: Mar-25-2025