Chimie ya METHOCEL ™ Ethers ya selile

METHOCEL™ ni ikirango cya selile ya selile yakozwe na Dow. Ethers ya selile ikomoka kuri selile, polymer karemano iboneka murukuta rwibimera. Chimie ya METHOCEL ™ ikubiyemo guhindura selile ikoresheje reaction ya etherification. Ubwoko bwibanze bwa METHOCEL ™ harimo Hydroxypropyl Methylcellulose (HPMC) na Methylcellulose (MC), buri kimwe gifite imiti yihariye. Dore muri rusange muri chimie ya METHOCEL ™:

1. Hydroxypropyl Methylcellulose (HPMC):

• Imiterere:
  • HPMC ni amazi ya elegitoronike ya selile yamashanyarazi hamwe nibintu bibiri byingenzi: hydroxypropyl (HP) nitsinda rya methyl (M).
  • Amatsinda ya hydroxypropyl atangiza imikorere ya hydrophilique, yongerera amazi amazi.
  • Amatsinda ya methyl agira uruhare mugukemura muri rusange no guhindura imiterere ya polymer.
• Igisubizo cya Etherification:
  • HPMC ikorwa binyuze muri etherification ya selile hamwe na okiside ya propylene (kumatsinda ya hydroxypropyl) na methyl chloride (kumatsinda ya methyl).
  • Imiterere yimyitwarire igenzurwa neza kugirango igere kurwego rwifuzwa rwo gusimbuza (DS) kumatsinda yombi hydroxypropyl na methyl.
• Ibyiza:
  • HPMC yerekana amazi meza cyane, ikora firime, kandi irashobora gutanga irekurwa mugukoresha imiti.
  • Urwego rwo gusimbuza rugira ingaruka za polymer, kubika amazi, nibindi bintu.

2. Methylcellulose (MC):

• Imiterere:
  • MC ni selile ya ether ifite insimburangingo ya methyl.
  • Irasa na HPMC ariko ibura amatsinda ya hydroxypropyl.
• Igisubizo cya Etherification:
  • MC ikorwa na etherifying selile hamwe na methyl chloride.
  • Imiterere yimyitwarire iragenzurwa kugirango ugere kurwego rwifuzwa rwo gusimburwa.
• Ibyiza:
  • MC irashobora gushonga amazi kandi ifite porogaramu mu buhanga mu bya farumasi, ubwubatsi, n’inganda zikora ibiribwa.
  • Ikoreshwa nka binder, kubyimbye, na stabilisateur.

3. Ibintu rusange:

• Amazi meza: HPMC na MC byombi bishonga mumazi akonje, bigatanga ibisubizo bisobanutse.
• Imiterere ya Firime: Bashobora gukora firime zoroshye kandi zifatanije, zikagira akamaro mubikorwa bitandukanye.
• Kubyimba: UBURYO BWA ether selulose ethers ikora nkibibyibushye bikora neza, bigira ingaruka kumyumvire yibisubizo.

4. Gusaba:

• Imiti yimiti: Ikoreshwa mububiko bwa tablet, binders, hamwe no kugenzura-kurekura.
• Ubwubatsi: Bikoreshejwe muri minisiteri, amatafari, nibindi bikoresho byubaka.
• Ibiryo: Byakoreshejwe nkibibyimbye na stabilisateur mubicuruzwa byibiribwa.
• Kwitaho kugiti cyawe: Biboneka mu kwisiga, shampo, nibindi bikoresho byo kwita kubantu.

Ubuhanga bwa chimie ya METHOCEL et selulose ethers ituma ibikoresho bitandukanye hamwe nibisabwa byinshi, bitanga kugenzura imiterere ya rheologiya, kubika amazi, nibindi bintu byingenzi biranga muburyo butandukanye. Imiterere yihariye irashobora guhuzwa muguhindura urwego rwo gusimbuza nibindi bikoresho byo gukora.