Cellulose Ether

Cellulose etherni ubwoko bwa selulose ikomokaho ihindurwa muburyo bwa chimique kugirango izamure imitungo yayo kandi irusheho guhinduka kubikorwa byinshi byinganda. Bikomoka kuri selile, niyo polymer nyinshi cyane iboneka murukuta rw'utugingo ngengabuzima. Ether ya selile ikorwa no kuvura selile hamwe na reagent ya chimique kugirango yinjize amatsinda asimbuye kuri molekile ya selile, bikavamo kunonosora imbaraga, gutuza, no gukora. Hano hari ingingo z'ingenzi zerekeye selile ether:

1. Imiterere yimiti:

• Ether ya selile igumana imiterere shingiro ya selile, igizwe no gusubiramo ibice bya glucose bihujwe hamwe na β (1 → 4) glycosidic.
• Guhindura imiti itangiza amatsinda ya ether, nka methyl, Ethyl, hydroxyethyl, hydroxypropyl, carboxymethyl, nibindi, mumatsinda ya hydroxyl (-OH) ya molekile ya selile.

2. Ibyiza:

• Gukemura: Ethers ya selile irashobora gushonga cyangwa gukwirakwizwa mumazi, bitewe n'ubwoko n'urwego rwo gusimbuza. Uku gukemuka gutuma bakoreshwa muburyo bwo mumazi.
• Rheologiya: Ethers ya selile ikora nkibibyibushye neza, ihindura imiterere ya rheologiya, hamwe na stabilisateur mumikorere y'amazi, itanga igenzura ryijimye kandi igateza imbere ibicuruzwa nibikorwa.
• Gukora firime: Ethers zimwe na zimwe za selile zifite imiterere yo gukora firime, zibemerera gukora firime zoroshye, zoroshye iyo zumye. Ibi bituma bagira akamaro mubitambaro, ibifatika, nibindi bikorwa.
• Igihagararo: Ethers ya selile yerekana ituze hejuru ya pH nubushyuhe bwubushyuhe, bigatuma ikoreshwa muburyo butandukanye.

3. Ubwoko bwa Cellulose Ether:

• Methylcellulose (MC)
• Hydroxypropyl Methylcellulose (HPMC)
• Hydroxyethyl Cellulose (HEC)
• Carboxymethyl Cellulose (CMC)
• Ethyl Hydroxyethyl Cellulose (EHEC)
• Hydroxypropyl Cellulose (HPC)
• Hydroxyethyl Methylcellulose (HEMC)
• Sodium Carboxymethyl Cellulose (NaCMC)

4. Gusaba:

• Ubwubatsi: Byakoreshejwe nkibibyimbye, ibikoresho byo kubika amazi, hamwe nabahindura rheologiya mubicuruzwa bishingiye kuri sima, amarangi, ibifuniko, hamwe nibifatika.
• Kwitaho no kwisiga: Gukoreshwa nkibibyimbye, stabilisateur, abakora firime, hamwe na emulisiferi mumavuta yo kwisiga, amavuta, shampo, nibindi bicuruzwa byita kumuntu.
• Imiti ya farumasi: Ikoreshwa nka binders, disintegrants, igenzurwa-irekura, hamwe nabahindura viscosity muburyo bwa tablet, guhagarikwa, amavuta, hamwe na geles yibanze.
• Ibiribwa n'ibinyobwa: Byakoreshejwe nk'ibyimbye, stabilisateur, emulisiferi, hamwe na moderi ihindura ibicuruzwa mubiribwa nk'isosi, imyambarire, ibikomoka ku mata, n'ibinyobwa.

5. Kuramba:

• Ether ya selile ikomoka kumasoko ashobora kuvugururwa ashingiye ku bimera, bigatuma ibidukikije byangiza ibidukikije kuri polymrike yubukorikori.
• Birashobora kwangirika kandi ntibigira uruhare mu kwangiza ibidukikije.

Umwanzuro:

Cellulose ether ni polymer itandukanye kandi irambye hamwe nibikorwa byinshi mubikorwa nkubwubatsi, ubuvuzi bwihariye, imiti, nibiribwa. Imiterere yihariye n'imikorere yabigize ikintu cyingenzi muburyo bwinshi, bigira uruhare mubikorwa, ibicuruzwa, ubwiza. Mu gihe inganda zikomeje gushyira imbere ingamba zirambye n’ibidukikije byangiza ibidukikije, biteganijwe ko hakenerwa ethers ya selile yiyongera, bigatuma udushya n’iterambere muri uru rwego.