Ho haha selulose e khethehileng ea hydroxypropyl methyl cellulose ho qoba ho kenella ha mongobo leboteng, ho tla ba le tekanyo e nepahetseng ea mongobo e ka lulang ka har'a seretse samente ho hlahisa ts'ebetso e ntle metsing 'me karolo ea hydroxypropyl methyl cellulose ka har'a seretse e ka lekana le viscosity, ha viscosity ea hydroxypropyl methyl cellulose e phahame, ho boloka metsi ho tla ba betere.
Hang ha mongobo oa hydroxypropyl methyl cellulose o phahame haholo, ho bolokoa ha metsi ha hydroxypropyl methyl cellulose ho tla fokotseha, 'me ho tla lebisa ka kotloloho katlehong ea kaho ea hydroxypropyl methyl cellulose. Re boetse re tloaelane le lintho tse tla ba bonolo ho etsa liphoso, re lokela ho lula re le foreshe, re tla fumana liphetho tse sa lebelloang.
Ho hlaka ho bonahalang ke letšoao la bohlokoa la hydroxypropyl methyl cellulose. Mekhoa e tloaelehileng ea ho lekanya ke ho lekanya ho potoloha ha viscosity, ho lekanya ho hlaka ha capillary le ho lekanya ho hlaka ha ho oa.
Pele, hydroxypropyl methyl cellulose e ne e fumanoa ka ho lekanya viscosity ea capillary, ho sebelisoa Uhnscher viscometer. Tharollo ea tekanyo hangata ke tharollo ea metsi ea 2, 'me foromo ke: V=Kdt. V ke viscosity ka metsotsoana, K ke constant ea viscometer, D ke density mochesong o sa fetoheng, 'me T ke nako eo ho e nkang ho tloha holimo ho ea tlase ho viscometer ka metsotsoana. Mokhoa ona oa ts'ebetso o rarahane haholo, haeba ho na le thepa e sa qhibiliheng, ho bonolo ho baka liphoso, ho thata ho tseba boleng ba hydroxypropyl methylcellulose.
Bothata ba ho haha ho arola sekhomaretsi ke bothata bo boholo boo bareki ba kopanang le bona. Taba ea pele, bothata ba thepa e tala bo lokela ho nahanoa bakeng sa ho haha ho arola sekhomaretsi. Lebaka le ka sehloohong la ho haha ho arola sekhomaretsi ke ho se lumellane pakeng tsa polyvinyl alcohol (PVA) le hydroxypropyl methylcellulose (HPMC). Lebaka la bobeli ke hore nako ea ho kopanya ha ea lekana; Hape ho na le ts'ebetso ea ho teteana ha sekhomaretsi sa mohaho ha e ntle.
Ha ho hahoa likhomaretsi, hydroxypropyl methylcellulose (HPMC) e lokela ho sebelisoa hobane HPMC e qhalanngoa feela ka metsing 'me ha e qhibilihe hantle. Metsotso e ka bang 2, viscosity ea mokelikeli e eketseha butle-butle, e etsa colloid e bonaletsang e nang le viscous.
Lihlahisoa tse qhibilihang ka ho chesang, ka metsing a batang, li ka hasana ka potlako ka metsing a chesang, tsa nyamela ka metsing a chesang, ha mocheso o theohela mochesong o itseng, viscosity e hlaha butle-butle, ho fihlela ho thehoa colloid e bonaletsang e nang le viscous. Hydroxypropyl methylcellulose (HPMC) ka har'a sekhomaretsi sa moaho e khothaletsoa bakeng sa 2-4kg.
Hydroxypropyl methyl cellulose (HPMC) mohahong, botsitso ba lik'hemik'hale ba sekhomaretsi, hlobo, phello ea ho boloka metsi e ntle, 'me ha e angoe ke phetoho ea PH, viscosity ho tloha ho 100 000 S - 200 000 S e ka sebelisoa. Empa tlhahisong ha e phahame viscosity, viscosity le matla a tlamo li lekana ka tsela e fapaneng, viscosity e phahameng, matla a manyane, ka kakaretso viscosity ea 100,000S e loketse.
Nako ea poso: Loetse-16-2022