Selelekela sa Hydroxyethyl Methyl Cellulose HEMC

Tlhahisoleseding ea Motheo eaSelulose ea Hydroxyethyl Methyl

Lebitso la Sechaena: hydroxyethyl methyl cellulose
Lebitso la Senyesemane: Hymetellose328
Lebitso le leng la Sechaena: hydroxyethyl methyl cellulose; hydroxyethyl methyl cellulose; hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl ether cellulose
Lebitso le leng la Senyesemane: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
Khemistri: Hydroymethylmethylecellulose; Hydroxyethylmethylcellulose; Hydroxymethylethylcellulose.

Limolek'hule: C2H6O2 xCH4O x PhEur 2002 e hlalosa hydroxyethylmethylcellulose e le cellulose e nang le O-methyl ka karolo e itseng, e nang le O-hydroxymethyl ka karolo e itseng. Litlhaloso tse fapaneng li hlahisoa mabapi le viscosity e bonahalang ho mPa ea tharollo ea metsi ea 2% w/v ho 20°C.
Boima ba limolek'hule: PhEur 2002 e hlalosa hydroxyethylmethylcellulose e le cellulose e nang le O-methyl ka karolo e itseng, e nang le O-hydroxymethyl ka karolo e itseng. Litlhaloso tse fapaneng li hlahisoa mabapi le viscosity e bonahalang ho mPa ea tharollo ea metsi ea 2% w/v ho 20°C.

Litšobotsi tse ka sehloohong tsa hydroxyethyl methyl cellulose (HEMC) ke tsena:

1. Ho qhibiliha: e qhibiliha ka metsing le metswakong e meng ya tlhaho, HEMC e ka qhibilihisoa ka metsing a batang, mahloriso a yona a phahameng a laolwa feela ke ho qhibiliha, ho qhibiliha ho fapana ka ho qhibiliha, ho qhibiliha ho tlase, ho qhibiliha ho hoholo.

2. Ho hanyetsa letsoai: Lihlahisoa tsa HEMC ke li-ether tsa cellulose tse seng tsa ionic 'me ha se li-polyelectrolyte, kahoo ha ho na le letsoai la tšepe kapa li-electrolyte tsa tlhaho, li tsitsitse ka mokhoa o batlang o le teng litharollong tsa metsi, empa ho eketsa li-electrolyte ho feteletseng ho ka baka ho mela ha metsi le pula.

3. Mosebetsi wa bokahodimo: Kaha tharollo ya metsi e na le mosebetsi wa tshebetso ya bokahodimo, e ka sebediswa e le moemedi wa tshireletso ya colloid, emulsifier le mofafatsi.

4. Gel ea mocheso: Ha tharollo ea metsi ea sehlahisoa sa HEMC e futhumatsoa ho fihlela mochesong o itseng, e fetoha e sa bonahaleng, e be li-gel, 'me e etsa mouoane, empa ha e ntse e pholisoa khafetsa, e khutlela boemong ba tharollo ea pele, 'me jel ena le pula lia etsahala. Mocheso o itšetlehile haholo-holo ka litlolo tsa tsona, lithuso tsa ho emisa, li-colloid tse sireletsang, li-emulsifier, jj.

5. Ho se sebetse hantle ha metabolism le monko o fokolang le monko o monate: HEMC e sebelisoa haholo lijong le merianeng hobane ha e na metabolism 'me e na le monko o fokolang le monko o monate.

6. Sebolaya-fungus: HEMC e na le bokgoni bo botle ba ho thibela dikokwana-hloko le botsitso bo botle ba ho teteana nakong ya polokelo ya nako e telele.

7. Botsitso ba PH: Ho teteana haHEMCTharollo ea metsi ea sehlahisoa ha e amehe haholo ke asiti kapa alkali, 'me boleng ba pH bo tsitsitse ka tekanyo e batlang e le pakeng tsa 3.0-11.0.

Tšebeliso: Hydroxyethyl methyl cellulose e ka sebelisoa e le moemeli ea sireletsang colloid, emulsifier le dispersant ka lebaka la mosebetsi o sebetsang holim'a tharollo ea metsi. Mohlala oa ts'ebeliso ea eona ke o latelang: Tšusumetso ea hydroxyethyl methyl cellulose holim'a thepa ea samente. Hydroxyethyl methylcellulose ke phofo e tšoeu e se nang monko, e se nang tatso, e se nang chefo e qhibilihang metsing a batang ho etsa tharollo e hlakileng, e tiileng. E na le litšobotsi tsa ho teteana, ho tlama, ho qhalakanya, ho kopanya, ho etsa filimi, ho emisa, ho monya, ho etsa gelling, ho sebetsa holim'a metsi, ho boloka mongobo le ho sireletsa colloids. Ka lebaka la mosebetsi o sebetsang holim'a tharollo ea metsi, e ka sebelisoa e le moemeli ea sireletsang colloid, emulsifier le dispersant. Tharollo ea metsi ea Hydroxyethyl methyl cellulose e na le hydrophilicity e ntle 'me ke moemeli ea bolokang metsi ea sebetsang hantle.