Fa'atomuaga o le Hydroxyethyl Methyl Cellulose HEMC

Fa'amatalaga Fa'avae oHydroxyethyl Methyl Cellulose

Igoa Saina: hydroxyethyl methyl cellulose
Igoa Peretania: Hymetellose328
Igoa fa'aSaina: hydroxyethyl methyl cellulose; hydroxyethyl methyl cellulose; hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl ether cellulose
Igoa fa'aperetania: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
Kemisi: Hydroymethylmethylecellulose; Hydroxyethylmethylcellulose; Hydroxymethylethylcellulose.

Molekuli: C2H6O2 xCH4O x PhEur 2002 ua fa'amatalaina le hydroxyethylmethylcellulose o le vaega O-methylated, vaega O-hydroxymethylated cellulose. O fa'amatalaga eseese o lo'o fa'aalia i tulaga o le viscosity manino i le mPa s o se 2% w/v vai fofo i le 20°C.
Mamafa molekiula: O le PhEur 2002 o loʻo faʻamatalaina le hydroxyethylmethylcellulose o le vaega O-methylated, vaega O-hydroxymethylated cellulose. O faʻamatalaga eseese o loʻo faʻaalia i tulaga o le viscosity manino i le mPa s o se 2% w/v vai fofo i le 20°C.

O uiga autū o le hydroxyethyl methyl cellulose (HEMC) o:

1. Fa'a'ese'esega: fa'a'ese'esega i le vai ma nisi o vaila'au fa'aola, e mafai ona fa'a'ese'esea le HEMC i le vai malulu, o lona maualuga maualuga e na'o le fa'atulagaina e le viscosity, e eseese le solubility ma le viscosity, o le maualalo o le viscosity, o le tele fo'i lea o le solubility.

2. Tete'e atu i le masima: O oloa HEMC o ni ethers cellulose e le o ni ionic ma e le o ni polyelectrolytes, o lea afai e iai ni masima u'amea po'o ni electrolytes organic, e mautu lava i ni vaifofo vai, ae o le tele o le fa'aopoopoina o electrolytes e mafai ona mafua ai le gelation ma le precipitation.

3. Gaoioiga i luga: Talu ai o le vai e iai lana galuega faatino i luga, e mafai ona faʻaaogaina o se sui puipuia colloid, emulsifier ma dispersant.

4. Kelu vevela: A fa'avevela le vai o le oloa HEMC i se vevela patino, e le mafai ona malamalama, e palu, ma fausia ai se mea e fa'aputu ai, ae a fa'amālūlūina pea, e toe fo'i i le tulaga muamua o le vai, ma e tupu ai lenei kelu ma le fa'aputuga. O le vevela e fa'alagolago tele lava i a latou mea fa'asusu, mea e fa'asusu ai, mea e puipuia ai, mea e fa'asusu ai, ma isi mea fa'apena.

5. Le gaoioi o le metabolism ma le manogi ma le manogi itiiti: E faʻaaogaina lautele le HEMC i meaʻai ma vailaʻau ona e le faʻafefiloi ma e itiiti lona manogi ma le manogi.

6. Fa'amamāina o siama: E lelei le malosi o le HEMC e tete'e atu ai i siama ma e mautu lelei fo'i le mafiafia i le teuina mo se taimi umi.

7. Mausali o le PH: O le mafiafia oHEMCE toetoe lava a lē aʻafia le vailaʻau vai o le oloa i le 'aisa poʻo le alkali, ma e mautu lelei le tau o le pH i le va o le 3.0-11.0.

Fa'aaogāga: E mafai ona fa'aaogā le Hydroxyethyl methyl cellulose o se vaila'au puipuia colloid, emulsifier ma dispersant ona o le galuega fa'atino o le vai i luga o le fogaeleele. O se fa'ata'ita'iga o lona fa'aaogāga e fa'apea: O le a'afiaga o le hydroxyethyl methyl cellulose i meatotino o le sima. O le Hydroxyethyl methylcellulose o se pauta pa'epa'e e leai se manogi, leai se tofo, e le o'ona e fa'ata'ape'apeina i le vai malulu e fausia ai se vaila'au manino ma mafiafia. E iai ona uiga o le fa'ama'a'aina, fusifusia, fa'asalalauina, emulsifying, faia o se ata tifaga, fa'a'au'au, mitiia, fa'apipi'i, fa'agaoioi luga, taofia le susu ma puipuia colloids. Ona o le galuega fa'atino o le vai i luga o le fogaeleele, e mafai ona fa'aaogā o se vaila'au puipuia colloid, o se emulsifier ma se dispersant. O le vaila'au vai o le Hydroxyethyl methyl cellulose e iai lona hydrophilicity lelei ma o se vaila'au taofia vai e maualuga lona lelei.