Farqiga u dhexeeya HPMC vs methylcellulose

HPMC (Hydroxypropyl methylcellulose) iyo methylcellulose ayaa labaduba si caadi ah loogu isticmaalaa cuntada, dawooyinka, iyo warshadaha daryeelka shakhsi ahaaneed sida dhumucyada, xasiliyeyaasha, emulsifiers, iyo wakiilada isku xidha. In kasta oo ay wadaagaan xoogaa isku mid ah, waxaa jira farqi u dhexeeya HPMC iyo methylcellulose:

1. Qaab dhismeedka kiimikada: HPMC iyo methylcellulose labaduba waxay ka soo jeedaan cellulose, polysaccharide si dabiici ah u dhaca. HPMC waa cellulose wax laga beddelay, halkaas oo qaar ka mid ah kooxaha hydroxyl ee ku jira molecule cellulose lagu beddelay kooxaha hydroxypropyl. Methylcellulose sidoo kale waa cellulose wax laga beddelay, halkaas oo qaar ka mid ah kooxaha hydroxyl ee unugyada cellulose lagu beddelay kooxaha methyl.
2. Solubility: HPMC waa ku milmay biyaha marka loo eego methylcellulose, taas oo sahlaysa in la milmi karo oo loo isticmaalo hababka.
3. Viscosity: HPMC waxay leedahay muuqasho sare marka loo eego methylcellulose, taas oo macnaheedu yahay inay leedahay sifooyin dhumuc wanaagsan waxayna abuuri kartaa joogtayn dhumuc weyn oo qaabaynta.
4. Gelation: Methylcellulose waxay awood u leedahay inay samayso jel marka la kululeeyo ka dibna la qaboojiyo, halka HPMC aanu lahayn hantidan.
5. Qiimaha: HPMC guud ahaan wuu ka qaalisan yahay methylcellulose.

Guud ahaan, doorashada u dhaxaysa HPMC iyo methylcellulose waxay ku xirnaan doontaa codsiga gaarka ah iyo sifooyinka la doonayo ee qaabaynta. HPMC waxa laga yaabaa in loo door bidayo milanka iyo joogteynta dhumucdeeda, halka methylcellulose laga yaabo in laga door bido kartida ay u leedahay samaynta jel.