HPMC e ka aroloa ka sehlopha sa kaho, sehlopha sa lijo le sehlopha sa meriana ho latela sepheo.Hona joale, boholo ba lihlahisoa tsa malapeng ke limaraka tsa kaho, 'me lihlopheng tsa kaho, palo ea putty powder e kholo haholo.Kopanya phofo ea HPMC ka bongata bo bongata ba lintho tse ling tsa phofo, u li kopanye ka botlalo ka motsoako, ebe u eketsa metsi ho qhibiliha, ebe HPMC e ka qhibiliha ka nako ena ntle le ho kopana, hobane sekhutlo se seng le se seng se senyenyane, karoloana e nyenyane ea phofo ea HPMC, e kopana. metsi.e tla qhibiliha hanghang.Hangata bahlahisi ba phofo ea putty le seretse ba sebelisa mokhoa ona.Hydroxypropyl methylcellulose (HPMC) e sebelisoa e le ntho e thibelang metsi le ho boloka metsi ka har'a seretse sa putty powder.
Thempereichara ea gel ea HPMC e amana le dikahare tsa eona tsa methoxy, ho theosa le methoxy content ↓, ho phahamisa mocheso oa gel ↑.Mofuta oa hang-hang oa metsi a batang oa HPMC o phekoloa ka holimo ka glyoxal, 'me o hasana ka potlako metsing a batang, empa ha e le hantle ha e qhibilihe.E qhibiliha feela ha viscosity e eketseha.Mefuta e chesang e qhibilihang ha e phekoloe ka glyoxal.Haeba palo ea glyoxal e le khōlō, ho hasana ho tla potlaka, empa viscosity e tla eketseha butle-butle, 'me haeba chelete e le nyenyane, se fapaneng se tla ba' nete.HPMC e ka aroloa ka mofuta oa hang-hang le mofuta oa ho qhibiliha o chesang.Sehlahisoa sa mofuta oa hang-hang se qhalana ka potlako metsing a batang ebe se nyamela ka metsing.Ka nako ena, mokelikeli ha o na viscosity hobane HPMC e qhalakanngoa feela metsing ntle le ho qhibiliha ha sebele.Hoo e ka bang metsotso e 2, viscosity ea mokelikeli e ntse e eketseha butle-butle, e etsa "viscous colloid" e hlakileng.Lihlahisoa tse chesang, ha li kopane le metsi a batang, li ka qhalana ka potlako metsing a chesang 'me tsa nyamela metsing a chesang.Ha mocheso o theohela ho mocheso o itseng, viscosity e tla hlaha butle-butle ho fihlela e etsa "viscous colloid" e hlakileng.Mofuta oa hot-melt o ka sebelisoa feela ka phofo ea putty le seretse.Ka sekhomaretsi sa metsi le pente, ho tla ba le ts'ebetso ea lihlopha 'me e ke ke ea sebelisoa.Mofuta oa hang-hang o na le mefuta e mengata e fapaneng ea lits'ebetso.E ka sebelisoa ka phofo ea putty le seretse, hammoho le sekhomaretsi sa metsi le pente, ntle le li-contraindications.
HPMC e hlahisoang ke mokhoa oa ho qhibiliha o sebelisa toluene le isopropanol e le li-solvents.Haeba ho hlatsoa ha ho molemo haholo, ho tla ba le monko o setseng.Kopo ea phofo ea putty: litlhoko li tlase, viscosity ke 100,000, e lekane, ntho ea bohlokoa ke ho boloka metsi hantle.Tšebeliso ea seretse: litlhoko tse phahameng, viscosity e phahameng, 150,000 e molemo.Tšebeliso ea sekhomaretsi: lihlahisoa tsa hang-hang tse nang le viscosity e phahameng lia hlokahala.Palo ea HPMC e sebelisoang lits'ebetsong tse sebetsang e fapana ho itšetlehile ka tikoloho ea boemo ba leholimo, mocheso, boleng ba molora oa sebaka sa calcium, putty powder formula le "boleng bo hlokoang ke bareki".The viscosity ea hydroxypropyl methylcellulose (HPMC) -putty powder hangata ke 100,000, 'me tlhokahalo ea seretse e phahame,' me e hloka 150,000 hore e be bonolo ho e sebelisa.Ho feta moo, mosebetsi o ka sehloohong oa HPMC ke ho boloka metsi, ho lateloa ke ho teteaneng.Ka phofo ea putty, hafeela ho boloka metsi ho le molemo 'me viscosity e tlaase (70,000-80,000), hape e ka khoneha.Ha e le hantle, ha viscosity e phahame, ho molemo ho boloka metsi a lekanyelitsoeng.Ha viscosity e feta 100,000, viscosity e tla ama ho boloka metsi.Eseng haholo;ba nang le hydroxypropyl e ngata ka kakaretso ba na le ho boloka metsi ho betere.E nang le viscosity e phahameng e na le ho boloka metsi hantle, 'me e nang le viscosity e phahameng e sebelisoa hamolemo seretseng sa samente.
Ka putty powder, HPMC e bapala likarolo tse tharo tsa ho tiisa, ho boloka metsi le ho haha.Se ke oa kenya letsoho liketsong leha e le life.Lebaka la li-bubble e ka 'na ea e-ba hore metsi a mangata a kenngoa, kapa e ka' na ea e-ba hore lera le ka tlaase ha le omme, 'me lesela le leng le phunyeletsoa ka holimo,' me ho bonolo ho foam.Phello e matla ea HPMC ka putty powder: selulose e ka teteaneng ho emisa, ho boloka seaparo sa tharollo 'me se tsitsitse,' me se hane ho sagging.Phello ea ho boloka metsi ea HPMC ka putty powder: etsa hore phofo ea putty e ome butle, 'me u thuse molora oa calcium ho itšoara tlas'a ketso ea metsi.Phello ea kaho ea HPMC ka phofo ea putty: selulose e na le phello ea lubricating, e ka etsang hore putty powder e be le mohaho o motle.HPMC ha e nke karolo ho liphetoho leha e le life tsa lik'hemik'hale, empa e bapala karolo ea thuso feela.
Tahlehelo ea phofo ea putty powder e amana haholo-holo le boleng ba molora oa calcium, 'me ha e amane hakaalo le HPMC.Khalsiamo e tlase ea khalsiamo e bohlooho le karo-karolelano e sa lokelang ea CaO le Ca(OH)2 ka k'halsiamo e bohlooho e tla baka tahlehelo ea phofo.Haeba e na le ho hong ho amanang le HPMC, joale haeba ho boloka metsi a HPMC ho futsanehile, ho tla boela ho etse hore phofo e oe.Ho eketsa metsi ho phofo ea putty le ho e beha leboteng ke karabelo ea lik'hemik'hale, hobane lintho tse ncha li thehoa, 'me phofo ea putty leboteng e tlosoa leboteng.Ho theoha, ho siloa ho ba phofo, 'me ho sebelisoa hape, ho ke ke ha sebetsa, hobane lintho tse ncha (calcium carbonate) li thehiloe.Likarolo tse kholo tsa phofo ea calcium ea molora ke: motsoako oa Ca(OH)2, CaO le chelete e nyenyane ea CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium. e ka metsing le moeeng Tlas'a ketso ea CO2, calcium carbonate e hlahisoa, ha HPMC e boloka metsi feela, e thusang ho itšoara hantle ha molora oa molora, 'me ha e kopanele karabelo leha e le efe ka boeona.
Nako ea poso: Mar-18-2023