Hydroxypropyl methylcellulose, 28-30% methoxyl, 7-12% hydroxypropyl

Hydroxypropyl methylcellulose, 28-30% methoxyl, 7-12% hydroxypropyl

O faʻamatalaga "28-30% methoxyl" ma le "7-12% hydroxypropyl" e faʻatatau i le tikeri o le sui i totonu.Hydroxypropyl Methylcellulose(HPMC). O nei fua fa'atatau o lo'o fa'ailoa mai ai le tele o le ulua'i polymer cellulose ua suia fa'ama'i i vaega methoxyl ma hydroxypropyl.

  1. 28-30% Methoxyl:
    • O lo'o fa'aalia ai, i le averesi, 28-30% o vaega muamua o le hydroxyl i luga o le mole mole cellulose ua suia i vaega methoxyl. Methoxyl vaega (-OCH3) ua faʻafeiloaʻi e faʻateleina ai le hydrophobicity o le polymer.
  2. 7-12% Hydroxypropyl:
    • O lona uiga, i le averesi, 7-12% o uluai vaega hydroxyl i luga o le mole mole cellulose ua suia i vaega hydroxypropyl. Hydroxypropyl vaega (-OCH2CHOHCH3) o loʻo faʻafeiloaʻi e faʻaleleia ai le soluble vai ma faʻaleleia isi mea faʻapitoa ma vailaʻau o le polymer.

O le maualuga o le suitulaga e a'afia ai meatotino a le HPMC ma lona fa'atinoga i fa'aoga eseese. Faataitaiga:

  • O le maualuga o le methoxyl i totonu e masani ona fa'ateleina ai le polymer's hydrophobicity, e a'afia ai lona soluble vai ma isi mea.
  • Ole mea maualuga ole hydroxypropyl e mafai ona fa'aleleia atili ai le solubility ile vai ma mea e fai ata tifaga ole HPMC.

O nei faʻamatalaga e taua tele i le faʻaogaina o le HPMC e faʻafetaui manaoga faʻapitoa i pisinisi eseese. Mo se faʻataʻitaʻiga, i totonu o fale talavai, o le filifiliga o le HPMC vasega ma tikeri faʻapitoa o le suitulaga e mafai ona aʻafia ai faʻamatalaga faʻamalolo o fualaau faʻasaina i faʻasologa o papa. I totonu o fale faufale, e mafai ona a'afia ai le taofiofia o le vai ma mea fa'apipi'i o oloa fa'avae sima.

E gaosia e le au gaosi ni togi eseese o le HPMC ma tikeri eseese o suiga e fetaui ma manaoga eseese o talosaga eseese. Pe a fa'aogaina le HPMC i fa'asologa, e taua mo tagata fa'apipi'i ona mafaufau i le vasega fa'apitoa o le HPMC e fetaui lelei ma meatotino mana'omia ma uiga fa'atinoga mo le fa'atatauga.


Taimi meli: Ian-22-2024