igoa ole oloa:hydroxyethyl methyl celluloseHEMC
Igoa Igilisi: Hymetellose
Fa'aigoa: methyl hydroxyethyl cellulose; MHEC, hydroxyethyl methyl cellulose eter;
hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl eter cellulose
Faa-Peretania igoa: Methylhydroxyethylcellulose; Selulosa; 2-hydroxyethyl methyl eter; HEMC; Tyopur MH[1]
Kemisi: Hydroymethylmethylecellulose; Hydroxyethylmethylcellulose; Hydroxymethylethylcellulose.
Molecules: C2H6O2 xCH4O x PhEur 2002 faʻamatalaina le hydroxyethylmethylcellulose o se vaega O-methylated, vaega O-hydroxymethylated cellulose. O faʻamatalaga eseese o loʻo faʻaalia i tulaga o le viscosity manino i mPa s o le 2% w / v vai fofo ile 20°C.
Mole mole mamafa: PhEur 2002 faauigaina hydroxyethylmethylcellulose o se vaega O-methylated, vaega O-hydroxymethylated cellulose. O faʻamatalaga eseese o loʻo faʻaalia i tulaga o le viscosity manino i mPa s o le 2% w / v vai fofo ile 20°C.
O uiga autu o le hydroxyethyl methyl cellulose (HEMC) o:
1. Solubility: soluble i le vai ma nisi solvents organic, HEMC e mafai ona faʻamavaeina i le vai malulu, o lona maualuga maualuga e naʻo le fuafuaina e le viscosity, solubility e fesuisuiaʻi ma le viscosity, o le maualalo o le viscosity, o le sili atu o le solubility.
2. Masima tetee: HEMC oloa e le-ionic cellulose ethers ma e le o polyelectrolytes, o lea i le i ai o salts uʻamea po o electrolytes organic, e fai si mautu i vaifofo vai, ae o le faaopoopo tele o electrolytes e mafai ona mafua ai gelation ma timuga.
3. Fa'asagaga gaioiga: A'o i ai i luga ole vaifofo gaioioiga gaioioiga, e mafai ona fa'aaogaina e fai ma sui puipui colloid, emulsifier ma dispersant.
4. Thermal gel: Pe a faʻamafanafanaina le vaifofo vai o le HEMC i se vevela patino, e avea opaque, gels, ma faʻapipiʻiina, ae a faʻaauau pea ona faʻafefe, e toe foʻi i le tulaga muamua o vaifofo, ma o lenei gel ma timuga e tupu. . O le vevela e faʻalagolago lava i luga o latou lubricants, fesoasoani taofi, colloids puipui, emulsifiers, ma isi.
5. Metabolic inertness ma maualalo le manogi ma le manogi: HEMC o loʻo faʻaaogaina lautele i meaʻai ma vailaʻau aua e le faʻafefeteina ma e maualalo le manogi ma le manogi.
6. Antifungal: HEMC o loʻo i ai le malosi faʻamaʻi lelei ma le faʻamautuina lelei o le viscosity i le taimi o le teuina umi.
7. PH mautu: O le viscosity o HEMC oloa vai vaifofo e faigata ona aafia i le acid po o le alkali, ma o le tau o le pH e matua mautu i le va o 3.0-11.0.
Talosaga: Hydroxyethyl methyl cellulose e mafai ona faʻaaogaina e avea ma sui puipui colloid, emulsifier ma dispersant ona o le galue malosi o le vai. O se faʻataʻitaʻiga o lona faʻaogaina e faʻapea: Le aʻafiaga o le hydroxyethyl methyl cellulose i luga o meatotino o le sima. O le Hydroxyethyl methylcellulose o se pauta pa'epa'e e leai se manogi, e leai se tofo, e fa'amavae i le vai malulu e fai ai se vaifofo manino ma le viscous. O loʻo i ai mea totino o le mafiafia, fusifusia, faʻasalalau, emulsifying, faʻapipiʻi ata, faʻagata, adsorbing, gelling, galue i luga, taofi le susu ma puipuia colloids. Ona o le galue malosi i luga o le vai, e mafai ona faʻaaogaina e avea o se mea e puipuia ai colloid, se emulsifier ma se faʻasalalau. Hydroxyethyl methyl cellulose vaifofo vai o lo'o i ai le hydrophilicity lelei ma o se vaila'au fa'atumauina vai maualuga.
Taimi meli: Oke-09-2022