Lebitso la sehlahisoa:hydroxyethyl methyl celluloseHEMC
Lebitso la Senyesemane: Hymetellise
Lebitso le leng: methyl hydroxyethyl cellulose; MHEC,hydroxyethyl methyl cellulose ether;
hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl ether cellulose
Lebitso la Senyesemane: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
Khemistri: Hydroymethylmethylecellulose; Hydroxyethyl methylcellulose; Hydroxymethylethylcellulose.
Limolek'hule: C2H6O2 xCH4O x PhEur 2002 e hlalosa hydroxyethylmethylcellulose e le karolo ea O-methylated, karolo e itseng ea O-hydroxymethylated cellulose. Litlhaloso tse fapaneng li hlahisoa ho latela viscosity e bonahalang ho mPa s ea 2% w/v tharollo ea metsi ho 20°C.
Boima ba molek'hule: PhEur 2002 e hlalosa hydroxyethylmethylcellulose e le karolo ea O-methylated, karolo e itseng ea O-hydroxymethylated cellulose. Litlhaloso tse fapaneng li hlahisoa ho latela viscosity e bonahalang ho mPa s ea 2% w/v tharollo ea metsi ho 20°C.
Litšobotsi tsa mantlha tsa hydroxyethyl methyl cellulose (HEMC) ke:
1. Ho qhibiliha: ho qhibiliha ka metsing le li-solvents tse ling, HEMC e ka qhibiliha metsing a batang, mahloriso a eona a mangata a khethoa feela ke viscosity, solubility e fapana le viscosity, e tlaase ea viscosity, e kholoanyane ea solubility.
2. Ho hanyetsa letsoai: Lihlahisoa tsa HEMC ha li na ionic cellulose ethers 'me ha li polyelectrolyte, kahoo ka pel'a letsoai la tšepe kapa li-electrolyte tsa organic, li batla li tsitsitse ka tharollo ea metsi, empa ho eketsoa ka mokhoa o feteletseng oa electrolyte ho ka baka gelation le pula.
3. Mosebetsi oa holim'a metsi: Kaha tharollo ea metsi e na le ts'ebetso ea holim'a metsi, e ka sebelisoa e le moemeli oa tšireletso ea colloid, emulsifier le dispersant.
4. Thermal gel: Ha sehlahisoa sa HEMC se nang le metsi a metsi se futhumetse mocheso o itseng, se fetoha opaque, li-gel, 'me se theha pula, empa ha e tsoela pele ho pholile, e khutlela sebakeng sa pele sa tharollo,' me gel ena le pula li etsahala. . Mocheso o itšetlehile haholo ka lisebelisoa tsa bona, lithuso tsa ho emisa, li-colloids tse sireletsang, li-emulsifiers, joalo-joalo.
5. Metabolic inertness le monko o fokolang le monko o monate: HEMC e sebelisoa haholo lijong le meriana hobane ha e na metabolized mme e na le monko o fokolang le monko o monate.
6. Antifungal: HEMC e na le bokhoni bo botle ba antifungal le botsitso bo botle ba viscosity nakong ea polokelo ea nako e telele.
7. Ho tsitsa ha PH: The viscosity ea HEMC sehlahisoa sa metsi a metsi ha se amehe haholo ke acid kapa alkali, 'me boleng ba pH bo batla bo tsitsitse ho 3.0-11.0.
Kopo: Hydroxyethyl methyl cellulose e ka sebelisoa e le moemeli oa tšireletso ea colloid, emulsifier le dispersant ka lebaka la ts'ebetso e sebetsang ea holim'a metsi a metsi. Mohlala oa tšebeliso ea eona ke o latelang: Phello ea hydroxyethyl methyl cellulose ho thepa ea samente. Hydroxyethyl methylcellulose ke phofo e tšoeu e sa nkheng, e sa latsoeheng, e se nang chefo e qhibilihang metsing a batang ho etsa tharollo e hlakileng, e hlakileng. E na le thepa ea ho tiisa, ho tlama, ho qhalakanya, emulsifying, filimi-forming, suspending, adsorbing, gelling, surface-active, ho boloka mongobo le ho sireletsa li-colloids. Ka lebaka la ts'ebetso e sebetsang ea holim'a metsi a metsi, e ka sebelisoa e le moemeli oa tšireletso ea colloid, emulsifier le dispersant. Hydroxyethyl methyl cellulose aqueous solution e na le hydrophilicity e ntle 'me ke sesebelisoa se bolokang metsi se sebetsang hantle haholo.
Nako ea poso: Oct-09-2022