Nigute ushobora gukora selile ether?

Umusaruro wa selile ya selile urimo guhindura imiti ya selile isanzwe, mubisanzwe ikomoka kumiti cyangwa ipamba, binyuze mumikorere yimiti. Ubwoko bukunze kugaragara bwa ether ya selile harimo Methyl Cellulose (MC), Hydroxyethyl Cellulose (HEC), Hydroxypropyl Methyl Cellulose (HPMC), Carboxymethyl Cellulose (CMC), nibindi. Inzira nyayo irashobora gutandukana ukurikije selile yihariye ya selile ikorwa, ariko intambwe rusange irasa. Dore incamake yoroshye:

Intambwe rusange yo gukora Ethers ya Cellulose:

1. Inkomoko ya selile:

• Ibikoresho byo gutangira ni selile isanzwe, iboneka mubiti cyangwa ipamba. Cellulose isanzwe muburyo bwa selile isukuye.

2. Alkalisation:

• Cellulose ivurwa n'umuti wa alkaline, nka sodium hydroxide (NaOH), kugirango ukore amatsinda ya hydroxyl kumurongo wa selile. Iyi ntambwe ya alkalisation ningirakamaro kugirango irusheho gukomokaho.

3. Kwiyongera:

• Cellulose ya alkalize ikorerwa etherification, aho amatsinda atandukanye ya ether yinjizwa mumugongo wa selile. Ubwoko bwihariye bwitsinda rya ether ryatangijwe (methyl, hydroxyethyl, hydroxypropyl, carboxymethyl, nibindi) biterwa na selile yifuzwa.
• Gahunda ya etherification ikubiyemo reaction ya selile hamwe na reagent ikwiye, nka:
  • Kuri Methyl Cellulose (MC): Kuvura hamwe na dimethyl sulfate cyangwa methyl chloride.
  • Kuri Hydroxyethyl Cellulose (HEC): Kuvura hamwe na okiside ya Ethylene.
  • Kuri Hydroxypropyl Methyl Cellulose (HPMC): Kuvura hamwe na okiside ya propylene na methyl chloride.
  • Kuri Carboxymethyl Cellulose (CMC): Kuvura hamwe na sodium chloroacetate.

4. Kutabogama no Gukaraba:

• Nyuma ya etherification, ibikomoka kuri selile bivamo ubusanzwe bidafite aho bibogamiye kugirango bikureho alkali isigaye. Ibicuruzwa noneho byogejwe kugirango bikureho umwanda nibicuruzwa.

5. Kuma no gusya:

• Ether ya selile yumye kugirango ikureho ubuhehere burenze hanyuma igasya ifu nziza. Ingano yingingo irashobora kugenzurwa hashingiwe kubisabwa.

6. Kugenzura ubuziranenge:

• Igicuruzwa cya nyuma cya selile ya ether ikorerwa ibizamini byo kugenzura ubuziranenge kugirango irebe ko yujuje ibisobanuro byihariye, birimo ubukonje, ibirimo ubuhehere, ingano y’ibice, hamwe n’ibindi bintu bifatika.

Ni ngombwa kumenya ko umusaruro wa selile ya selile ukorwa nababikora kabuhariwe bakoresheje inzira zigenzurwa. Imiterere yihariye, reagent, nibikoresho bikoreshwa birashobora gutandukana ukurikije imitungo yifuzwa ya selile ether hamwe nibisabwa. Byongeye kandi, ingamba z'umutekano ni ngombwa mugihe cyo guhindura imiti.