Cellulose Ether

Cellulose etherikozwe muri selile binyuze muri etherification ya reaction imwe cyangwa nyinshi za etherification hamwe no gusya byumye. Ukurikije imiterere itandukanye ya chimique yibisimburwa bya ether, ethers ya selile irashobora kugabanywamo anionic, cationic na nonionic ethers. Ionic selulose ethers ahanini irimocarboxymethyl selulose ether (CMC); non-ionic selulose ethers ahanini irimomethyl selulose ether (MC),hydroxypropyl methyl selulose ether (HPMC)na hydroxyethyl selulose ether.Chlorine ether (HC)n'ibindi. Ether idafite ionic igabanijwemo eferi zishonga mumazi na eferi zishonga amavuta, kandi ether zidafite amazi-eferi zikoreshwa cyane mubicuruzwa bya minisiteri. Imbere ya calcium ion, ionic selulose ether ntigihungabana, kubwibyo ntibikunze gukoreshwa mubicuruzwa bivanze na minisiteri yumye ikoresha sima, lime yamenetse, nibindi nkibikoresho bya sima. Nonionic water-soluble selulose ethers ikoreshwa cyane mubikorwa byubwubatsi kubera guhagarara kwayo no kubika amazi.

Ibikoresho bya Shimi bya Cellulose Ether

Buri selile ya selile ifite imiterere yibanze ya selile - Imiterere ya Anhydroglucose. Muburyo bwo gukora ether ya selile, fibre ya selile yabanje gushyukwa mumuti wa alkaline, hanyuma ikavurwa na agent ya etherifying. Igicuruzwa cya fibrous reaction gisukurwa kandi kigasunikwa kugirango kibe ifu imwe hamwe nubwiza runaka.

Mubikorwa byo kubyara MC, methyl chloride yonyine niyo ikoreshwa nka etherification agent; usibye methyl chloride, okiside ya propylene ikoreshwa no kubona hydroxypropyl insimburangingo mu musaruro wa HPMC. Ethers zitandukanye za selile zifite ibipimo bitandukanye byo gusimbuza methyl na hydroxypropyl, bigira ingaruka kumihindagurikire yubushyuhe hamwe nubushyuhe bwumuriro wa selulose ether ibisubizo.