1. Tšebeliso e ka sehloohong ea hydroxypropyl methyl cellulose ke efe?
HPMCe sebelisoa haholo thepa ea kaho, liphahlo, li-resin tsa maiketsetso, li-ceramic, meriana, lijo, masela, temo, litlolo, koae le liindasteri tse ling. HPMC e ka aroloa ka sehlopha sa indasteri, sehlopha sa lijo le sehlopha sa bongaka ho latela tšebeliso.
2. Hydroxypropyl methyl cellulose e arotsoe ka mefuta e 'maloa, phapang ke efe pakeng tsa tsona?
HPMC e ka aroloa ka likarolo tsa hang-hang (sehlomathiso sa lebitso "S") le tse qhibilihang ka ho chesang, lihlahisoa tsa hang-hang, metsing a batang li hasanngoa kapele, li nyamela ka metsing, ka nako ena mokelikeli ha o na viscosity, hobane HPMC e hasanngoa feela ka metsing, ha ho na ho qhibiliha ha 'nete. Metsotso e ka bang 2, viscosity ea mokelikeli e eketseha butle-butle, e etsa gel e hlakileng le e khomarelang. Lihlahisoa tse qhibilihang ka mocheso, tse kopantsoeng ka metsing a batang, li ka hasana ka potlako ka metsing a chesang, tsa nyamela ka metsing a chesang, joalo ka ha mocheso o theohela mochesong o itseng (ho latela mocheso oa gel oa sehlahisoa), viscosity e hlaha butle-butle, ho fihlela ho thehoa colloid e bonaletsang e nang le viscosity.
3. Mokhoa oa ho fumana boleng ba hydroxypropyl methyl cellulose ka mokhoa o bonolo le o utloahalang joang?
1) bosweu, leha bosweu bo ke ke ba tseba hore na HPMC e ntle, mme haeba e eketsoa tshebetsong ya tlhahiso, e tla ama boleng ba yona, empa, dihlahiswa tse ntle boholo ba tsona bo botle.
2) Botenya: Botenya ba HPMC hangata ke letlooeng la 80 le letlooeng la 100, morero o fokolang ke 120, ha botenya bo le betere, ho molemo.
3) phetiso ea leseli: HPMC ka metsing, e etsa colloid e bonaletsang, bona phetiso ea eona ea leseli, ha e le ntle e kenella haholo, e hlalosa lintho tse sa qhibiliheng ka hare, kettle ea karabelo e otlolohileng ka likhato tse 'maloa e ntle, e tla romela tse ling tsa kettle ea karabelo e otlolohileng, empa e ke ke ea hlalosa boleng ba tlhahiso ea kettle e otlolohileng bo betere ho feta tlhahiso ea kettle, ho na le lintlha tse ngata tse khethollang boleng ba sehlahisoa.
4) tekanyo: ha karolo e le kgolo, e boima haholo, ho feta e kgolo, ka kakaretso ka lebaka la dikahare tse hodimo tsa hydroxypropyl kahare, dikahare tsa hydroxypropyl di phahame, ho boloka metsi ho betere.
4. Mekhoa ea ho qhaqha ha hydroxypropyl methyl cellulose ke efe?
1) Mefuta eohle e ka eketsoa ka har'a thepa ka mokhoa oa ho kopanya ka omileng;
2) Ho hlokahala hore e eketsoe ka ho toba tharollong ea metsi ea mocheso o tloaelehileng, ho molemo ho sebelisa ho hasana ha metsi a batang, ka mor'a ho e eketsa ka kakaretso ka metsotso e 10-90 ho teteana (hlohlelletsa hlohlelletsa)
3) Mefuta e tloaelehileng e ka qhibilihisoa ka mora ho kopanya le ho qhalanya ka metsi a chesang le ho eketsa metsi a batang ka mora ho hlohlelletsa le ho phodisa;
4) Ha e qhibiliha, haeba ketsahalo ea ho kopana e etsahala, ke hobane ho hlohlelletsa ha hoa lekana kapa mohlala o tloaelehileng o eketsoa ka ho toba metsing a batang. Nakong ena, e lokela ho hlohlelletsoa kapele.
5) Haeba dipululana di hlaha nakong ya ho qhibiliha, di ka tloswa ka ho ema dihora tse 2-12 (nako e ikgethang e itshetlehile ka ho tsitsa ha tharollo) kapa ka ho hlwekisa le ho hatella, kapa ka ho eketsa tekanyo e loketseng ya sehlahiswa sa ho hlwekisa.
5 hydroxypropyl methyl cellulose ka bongata ba phofo ea putty?
HPMC ts'ebelisong ea 'nete ea bongata, ka tikoloho ea tlelaemete, mocheso, boleng ba calcium bo bohlooho ba lehae, mokhoa oa phofo ea putty le litlhoko tsa bareki tsa boleng bo fapaneng, 'me ho na le liphapang tse potolohileng, ka kakaretso li pakeng tsa lik'hilograma tse 4-5.
6. Ho teteana ho loketseng ha hydroxypropyl methyl cellulose ke hofe?
Phofo ea putty ka kakaretso e na le makotikoti a 100000, litlhoko tsa seretse li phahame, ho fihlela ho 150000 li ntle feela, 'me karolo ea bohlokoa ea HPMC ke ho boloka metsi, ho lateloa ke ho teteana. Phofong ea putty, ha feela ho boloka metsi ho le molemo, viscosity e tlase (7-8), hoa khoneha hape, ehlile, viscosity e kholo, ho boloka metsi ho molemo, ha viscosity e feta 100,000, viscosity ea ho boloka metsi ha e ngata.
7. Lisebelisoa tse ka sehloohong tsa hydroxypropyl methyl cellulose ke life?
HPMCthepa e tala e ka sehloohong: k'hothone e hloekisitsoeng, chloromethane, propylene oxide, thepa e tala e meng, tablet alkali, asiti toluene.
8. Hydroxypropyl methyl cellulose ts'ebelisong ea phofo ea putty, karolo e ka sehloohong, hore na ke lik'hemik'hale?
Ho phofo ea putty, ho teteana, ho boloka metsi le kaho ea mesebetsi e meraro. Ho teteana, cellulose e ka teteana ho fihlela e emisoa, e le hore tharollo e lule e lekana ho ea holimo le tlase e le karolo ea ho leketla ho thibela phallo. Ho boloka metsi: etsa hore phofo ea putty e ome butle, calcium e bohlooho e thusang ketsong ea karabelo ea metsi. Kaho: setlolo sa cellulose, se ka etsa hore phofo ea putty e be le kaho e ntle. HPMC ha e nke karolo liketsong life kapa life tsa lik'hemik'hale, empa e bapala karolo e tšehetsang feela.
9 .hydroxypropyl methyl cellulose ke ether ya cellulose e seng ya ionic, jwale e seng ya ionic ke eng?
Ka mantsoe a tloaelehileng, lintho tse sa sebetseng ha li kenelle liketsong tsa lik'hemik'hale.
CMC (carboxymethyl cellulose) ke cellulose ea cationic, kahoo ho kopana le calcium e putsoa ho tla fetoha masala a linaoa.
10. Lipontšo tsa bohlokoa tsa tekheniki tsa hydroxypropyl methyl cellulose ke life?
Sekhahla sa Hydroxypropyl
Methyl e ka hare
ho teteana
molora
Ho theola boima ba 'mele ka omileng
11. Ke eng e amanang le mocheso oa gel oa hydroxypropyl methyl cellulose?
Mocheso oa jel oa HPMC o amana le litaba tsa methoxyl, ha litaba tsa methoxyl li le tlase, mocheso oa jel o phahame.
Phofo ea putty e 12 e na le kamano efe pakeng tsa hydroxypropyl methyl cellulose?
Haeba HPMC e sa boloke metsi hantle, e tla baka phofo.
13 hydroxypropyl methyl cellulose ts'ebelisong ea phofo ea putty, putty powder bubble ke eng?
HPMC ka har'a phofo ea putty, ho teteana, ho boloka metsi le kaho ea mesebetsi e meraro, sesosa sa bubble:
1. ) Metsi a mangata haholo a eketsoa.
2. )Lera le ka tlase ha le ome, ebe o hohla lera hodima lona, leo hape le leng bonolo ho le ntsha matheba.
14. Phapang ke efe pakeng tsa hydroxypropyl methyl cellulose e qhibilihang ka potlako metsing a batang le e qhibilihang ka mocheso e qhibilihang ka har'a metsi ts'ebetsong ea tlhahiso?
Tharollo ea hang-hang ea metsi a batang a HPMC ke ka mor'a kalafo ea bokaholimo ba glyoxal, e kenngoa ka metsing a batang e hasanngoa kapele, empa ha e qhibilihe hantle, viscosity e ea phahama, ea qhibiliha. Mofuta o qhibilihang ka thermosol ha o so phekoloe bokaholimo ka glyoxal. Bongata ba glyoxal bo boholo, ho hasana ho potlakile, empa viscosity e lieha, bongata bo bonyenyane, ho fapana le hoo.
15. Ho thoe'ng ka monko oa hydroxypropyl methyl cellulose?
HPMC e hlahisoang ka mokhoa oa ho qhibilihisa e entsoe ka toluene le isopropyl alcohol. Haeba ho hlatsuoa ho se hotle haholo, ho tla ba le tatso e setseng. (Ho hlaphoheloa ha neutralization ke mokhoa oa bohlokoa oa monko)
16. Mokhoa oa ho khetha hydroxypropyl methyl cellulose e loketseng bakeng sa tšebeliso e fapaneng?
Phofo ea putty: litlhoko tse phahameng tsa ho boloka metsi, ho lumellana hantle ha kaho (sehlopha se khothaletsoang: 75AX100000)
Seretse se tloaelehileng se thehiloeng samenteng: ho boloka metsi a mangata, ho hanyetsa mocheso o phahameng, ho teteana hang-hang (sehlopha se khothaletsoang: 75AX150000)
Tšebeliso ea sekhomaretsi sa moaho: lihlahisoa tsa hang-hang, ho teteana ho hoholo. (Nomoro ea lets'oao le khothaletsoang: 75AX200000S)
Seretse sa gypsum: ho boloka metsi a mangata, ho teteana ho mahareng le ho tlase, ho teteana hang-hang (sehlopha se khothaletsoang: 75AX75000)
17. Lebitso la boswaswi la hydroxypropyl methyl cellulose ke lefe?
HPMC kapa MHPC e bitsoang hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.
18. Phapang ke efe pakeng tsa hydroxypropyl methyl cellulose leMC?
MC ke methyl cellulose, ke k'hothone e hloekisitsoeng ka mor'a kalafo ea alkali, methane chloride e le moemeli oa etherifying, ka letoto la liketso 'me e entsoe ka ether ea cellulose, tekanyo e akaretsang ea phetolo ke 1.6-2.0, tekanyo e fapaneng ea ho qhibiliha ha phetolo le eona e fapane, ke ea ether ea cellulose e seng ea ionic.
(1) Ho boloka metsi ha methyl cellulose ho itshetlehile ka bongata ba yona ba ho eketsa, viscosity, botenya ba dikarolwana le sekgahla sa ho qhalana. Ka kakaretso, bongata ba ho eketsa bo boholo, botenya bo bonyenyane, viscosity e kgolo, sekgahla sa ho boloka metsi se hodimo, bongata ba ho eketsa bo na le tshusumetso e kgolo sekgahla sa ho boloka metsi, viscosity le sekgahla sa ho boloka metsi ha se tlase ho feta kamano, sekgahla sa ho qhalana se itshetlehile haholo-holo ka tekanyo ya phetoho ya bokahodimo le botenya ba dikarolwana tsa cellulose. Methyl cellulose le hydroxypropyl methyl cellulose ho di-ether tse mmalwa tsa cellulose tse ka hodimo di na le sekgahla se hodimo sa ho boloka metsi.
(2) Methyl cellulose e ka qhibiliha ka metsing a batang, metsi a chesang a tla ba thata ho a qhala, tharollo ea eona ea metsi e ka har'a pH = 3-12 e tsitsitse haholo, 'me starch, jj., le li-surfactants tse ngata li lumellana hantle, ha mocheso o fihla mochesong oa gelation, ho tla ba le ketsahalo ea gelation.
(3) Liphetoho tsa mocheso li tla ama sekgahla sa ho boloka metsi sa methyl cellulose ka botebo, ka kakaretso, ha mocheso o le hodimo, ho boloka metsi ho mpefala. Haeba mocheso wa seretse o feta di-degree tse 40, ho boloka metsi ha methyl cellulose ho tla mpefala haholo, e leng se amang ka botebo bokgoni ba ho haha seretse.
(4)Selulose ea Methyle na le tšusumetso e totobetseng hodima ho hahuoa le ho khomareloa ha seretse. Ho khomarela mona ho bolela matla a sekhomaretsi a utlwahalang pakeng tsa sesebelisoa le substrate ya lebota ke mosebetsi, ke hore, ho hanyetsa ho kobeha ha seretse. Ho khomarela ho hoholo, ho hanyetsa ho kobeha ha seretse ho hoholo, matla a hlokahalang ke basebetsi nakong ya tshebediso le ona a maholo, mme kaho ya seretse e fokola.
Nako ea poso: Mmesa-25-2024