Eter cellulose waa polymer synthetic oo laga sameeyay cellulose dabiiciga ah iyada oo loo marayo isbeddel kiimiko ah. Cellulose ether waa nooc ka mid ah cellulose dabiiciga ah. Wax soo saarka ether-ka cellulose wuu ka duwan yahay polymers-ka synthetic. Maaddada ugu badan ee aasaasiga ah waa cellulose, oo ah ka samaysan polymer dabiici ah. Sababtoo ah gaar ahaan qaab dhismeedka cellulose ee dabiiciga ah, cellulose lafteedu awood uma laha inay ka falceliyaan wakiilada etherification. Si kastaba ha ahaatee, ka dib daaweynta wakiilka bararka, bonds hydrogen xooggan u dhexeeya silsiladaha molecular iyo silsiladaha waa la burburiyaa, iyo sii daynta firfircoon ee kooxda hydroxyl waxay noqotaa cellulose alkali fal-celin ah. Hel ether cellulose.
Astaamaha ether-yada cellulose waxay ku xiran yihiin nooca, tirada iyo qaybinta beddelka. Kala soocida ethers cellulose waxay sidoo kale ku saleysan tahay nooca beddelka, heerka etherification, milanka iyo sifooyinka codsiga ee la xiriira. Marka loo eego nooca beddelka ee silsiladda molecular, waxaa loo qaybin karaa monoether iyo ether isku dhafan. Sida caadiga ah waxaan u isticmaalnaa mc sida monoether, iyo HPmc sida ether isku dhafan. Methyl cellulose ether mc waa badeecada ka dib markii kooxda hydroxyl ee unugga gulukooska ee cellulose dabiiciga ah lagu beddelay kooxda methoxy. Waa shey la helay iyadoo lagu beddelayo qayb ka mid ah kooxda hydroxyl ee unugga koox methoxy ah iyo qayb kale oo leh koox hydroxypropyl ah. Qaabka qaabdhismeedku waa [C6H7O2(OH)3-mn(OCH3)m[OCH2CH(OH)CH3]n]x Hydroxyethyl methyl cellulose ether HEmc, kuwani waa noocyada ugu waaweyn ee si weyn loo isticmaalo loogana iibiyo suuqa.
Marka la eego milanka, waxa loo qaybin karaa ionic iyo non-ionic. Ether-yada cellulose-ka aan-ionic-ka ee biyaha-milmi kara waxay inta badan ka kooban yihiin laba taxane oo ethers alkyl ah iyo ethers hydroxyalkyl. Ionic Cmc waxaa inta badan loo isticmaalaa saabuunta synthetic, daabacaadda dunta iyo rinjiyeynta, sahaminta cuntada iyo saliidda. Non-ionic mc, HPmc, HEmc, iwm ayaa inta badan loo isticmaalaa qalabka dhismaha, dahaarka cinjirka ah, daawada, kiimikooyinka maalinlaha ah, iwm. Waxa loo isticmaalaa dhumuc weyn, wakiilka biyaha haynta, xasilinta, kala firdhiso iyo wakiilka samaynta filimada.
Waqtiga boostada: Nov-24-2022